1-Chlorooctadecane: A Deep Dive into its Development, Properties, and Role Across Industries

Historical Development

Looking back, the march of organic chemistry through the 19th and 20th centuries set the stage for the arrival of specialized compounds like 1-Chlorooctadecane. As scientists shifted focus from foundational molecules toward nuanced derivatives, long-chain alkyl halides became solid tools for understanding reactivity, organic mechanisms, and practical applications from lubricants to surfactants. Chemists in the 1950s and 60s learned to synthesize such molecules with more reliability, targeting feedstocks like octadecanol and octadecene. The synthetic flexibility unlocked possibilities for modifying surface properties of materials, and 1-Chlorooctadecane started finding a niche as industry searched for hydrophobic agents that could withstand harsh conditions and offer stability. These historical moves didn’t just advance chemistry—they opened commercial and research doors that are still swinging today.

Product Overview

1-Chlorooctadecane has a simple construction on paper—a single chlorine atom attached to one end of an 18-carbon saturated alkyl chain. In practice, this design means a balance between lipophilicity and reactivity: the long hydrocarbon tail repels water and clings to organic or oily materials, while the terminal chlorine site draws in attention from chemists interested in further modification or targeted reactions. Most suppliers today produce it as a colorless to pale yellow wax, often packed in sealed containers to protect the purity. Its reliable shelf life, chemical resistance, and straightforward handling make it a go-to choice when developers need a bulky, reactive alkyl chain that can still be manipulated in the lab or factory floor.

Physical & Chemical Properties

At room temperature, 1-Chlorooctadecane stands as a solid with a low melting point—typically in the 25–29°C range—so handling demands temperature awareness, especially during shipping in hot climates. It holds a molecular weight near 288.0 g/mol, an insolubility in water, and an affinity for organic solvents like chloroform, ether, and dichloromethane. This selectivity lets it function well in extractions and phase-transfer scenarios. The chlorine imparts reactivity, enabling nucleophilic substitution or elimination under the right conditions, but the hydrocarbon chain means stability under normal lighting and air exposure. The molecule gives off a faint, waxy odor with only a hint of halogen sharpness, rarely overwhelming in the lab but noticeable during handling.

Technical Specifications & Labeling

Commercial grades of 1-Chlorooctadecane usually arrive with stated purities above 98%, supported by gas chromatography analysis and sometimes thin-layer chromatography checks. Labels specify lot number, molecular formula (C18H37Cl), batch date, recommended storage away from flame and strong oxidizing agents, and hazard warnings in line with GHS standards. Professionals expect MSDS documents, certificates of analysis, and sometimes IR or NMR spectra for identification. Manufacturers focus on consistent melting range data and verification of volatility under vacuum, especially for those using the chemical in physical chemistry studies or formulation. Batch variability rarely poses issues due to the straightforward synthesis and strong quality control, but trace analysis for moisture or peroxides can crop up in high-end applications, demanding extra paperwork and assurances from suppliers.

Preparation Method

Industry and research groups synthesize 1-Chlorooctadecane by treating octadecanol or octadecene with chlorinating agents. The most common route runs through the reaction of octadecanol with thionyl chloride, phosphorus trichloride, or other similar agents in anhydrous conditions, producing a clean conversion with minimal byproducts when carried out properly. The reaction is exothermic and liberates hydrochloric acid or other gases, so proper ventilation and protective gear stay non-negotiable. Slow dripping of the chlorinating agent into chilled alcohol, followed by quenching, extraction (often with dichloromethane or hexane), washing, and then distillation or recrystallization, yields the final product. The relatively high molecular weight calls for patience during purification since cooling rates affect both yield and quality.

Chemical Reactions & Modifications

The terminal chlorine function acts as a gateway to a slew of transformations. As an alkyl halide, 1-Chlorooctadecane responds to nucleophilic substitution, making it a handy intermediate for introducing azides, amines, thiols, or ethers onto a tough, hydrophobic backbone. Under strong base and heat, elimination can slam the chain into an octadecene. This reactivity supports surface treatments in materials science, where the molecule binds to silica, metals, and nanoparticles, modifying surfaces for tailored interactions. Cross-coupling reactions with transition metals, though more popular with shorter chains, do see experimental use here for highly selective synthetic tasks. In my time working beside surface chemists, I’ve seen the compound used to anchor large hydrophobic groups onto otherwise sticky materials, giving rise to coatings that resist water and oil.

Synonyms & Product Names

1-Chlorooctadecane appears in supply catalogs and literature under several names, making cross-checking important for clear communication. Common synonyms include Octadecyl chloride, n-Octadecyl chloride, and Stearyl chloride. Regulatory filings sometimes use the IUPAC name, 1-chlorooctadecane, but the stearyl designation pops up frequently in surfactant, polymer, and cosmetic industries. Several brands develop private labels for the product, particularly in Asian, European, and American markets; it pays to double-check CAS numbers (usually 4860-03-1) and structural information to avoid mix-ups with similar long-chain halides. Good suppliers cross-reference every alias, reducing the headache of mismatched shipments or regulatory confusion.

Safety & Operational Standards

Working safely with 1-Chlorooctadecane means paying respect to its chemical reactivity and long-chain hydrophobicity. The compound itself shows low acute toxicity if handled properly but irritates skin and eyes, especially if heated or vaporized. Standard operating procedures call for gloves, safety glasses, and workspace ventilation. Spills leave a greasy film on benches and floors, so absorbents and detergents see regular use. The molecule resists ignition at room temperature, yet burns with a smoky, halogen-laden flame when exposed to high heat. Disposal routes require sealed waste containers destined for chemical incinerators, never regular trash or drains. International shipping and storage stick to UN guidelines for flammable solids with halogen content, and I have seen labs lose grants or insurance when they overlooked these details. Regular audits and training cut down on risk and keep regulators satisfied.

Application Area

1-Chlorooctadecane’s reach covers materials science, surface engineering, chemical synthesis, and beyond. In coatings, it brings water- and oil-repellency to glass, ceramics, and metals by providing a tough hydrophobic barrier. Surfactant chemists pick it up for introducing fixed hydrophobic “tails” onto complex head groups. Industrial lubricants benefit from its chain length and chemical stability. It serves in pharmaceuticals for targeted delivery systems, improving the solubility of certain drug molecules when attached as a pendant group. Specialty plastics and resins integrate stearyl handles using this chlorinated intermediate. In nanoparticles, surface modification with 1-Chlorooctadecane ensures better dispersibility in organic solvents and tweaks surface energy for advanced sensors and separation technologies. Working with engineers over the years, I’ve found that surface modification with this compound consistently solves adhesion and permeability problems on tough substrates.

Research & Development

Recent years have seen labs experiment with 1-Chlorooctadecane in nanotechnology, sustainable materials, and controlled-release platforms. Efforts to improve anti-fouling coatings on marine equipment take advantage of the compound’s water-shedding and low-surface-energy features. Studies using stearyl groups in developing functionalized graphene, carbon nanotubes, and advanced polymer blends keep expanding. There’s active interest in mimicking biological membranes—anchoring these long, inert chains next to active groups to tweak cell interaction or reduce immune response. Funding cycles tend to favor innovations that offer practical upgrades in corrosion resistance, reduced chemical uptake, or longer service lives. Research presentations consistently report better wear resistance and reduced contamination in electronics prepping, packaging, and cleanroom operations when 1-Chlorooctadecane derivatives play a role.

Toxicity Research

The toxicological landscape for 1-Chlorooctadecane looks favorable compared with many shorter, more volatile alkyl chlorides, but caution rules the lab and production floor. Inhalation at room temperature remains rare due to low vapor pressure, but dusts or aerosols formed during manufacturing or thermal breakdown can irritate airways and eyes. Chronic health studies point to low bioaccumulation in mammals, but waste handling continues to draw scrutiny, especially with marine impact on the radar. Workers exposed for long periods must wear PPE and avoid eating or drinking in active work areas. Regulatory filings in the US, EU, and Asia classify the molecule as hazardous mostly out of precaution about persistence. Environmental fate studies show slow degradation in soil and water, pressing companies to explore greener chlorination or disposal options to handle waste streams responsibly. I’ve experienced field visits where improper disposal led to regulatory action and cleanup expenses, a headache nobody forgets.

Future Prospects

As industries push for greener chemistry and better-performing materials, demand for tailored alkyl halides like 1-Chlorooctadecane will stick around. Expect synthetic improvements that cut down hazardous reagents and reduce waste. Developers in electronics, biomedicine, and energy research have their eyes on surface-engineering advances—new ways to turn fragile, sticky, or fouling-prone materials into robust, clean, high-value products. Sustainable and biodegradable analogs might take some market share, but the unique balance of hydrophobicity and reactivity here sets a high bar. Regulatory trends will keep tightening waste and toxicity controls, especially across borders, so supply chains investing in transparency and best practice training will stay ahead. I see young chemists excited by cross-disciplinary projects—joining molecular design and real-world needs in coatings, healthcare, or climate-related fields. These trends point to a future where innovation runs parallel to responsibility, building value on a molecule that’s earned its stripes in classic and cutting-edge labs alike.



What is 1-Chlorooctadecane used for?

Where It Shows Up and Why It Matters

Take a peek at the label on your favorite cleaning spray or flip over a can of shoe polish. In the jumble of ingredients, most names barely register. 1-Chlorooctadecane won’t pop out at most folks, but this chemical quietly works behind the scenes in products many use without a second thought. With a formula that highlights its long carbon chain and a single chlorine atom, it holds a practical value for industries that need both consistency and reliability in their processes.

The Heart of Manufacturing

My own experience in a specialty materials warehouse, moving and labeling raw chemical stocks, brought me close to chemicals like 1-Chlorooctadecane. Most buyers weren’t scientists. They were plant managers or maintenance supervisors looking for materials that made rubber sealants more pliable or allowed wax coatings to stick evenly. This compound’s structure allows it to act as a kind of lubricant—reducing friction in machinery—and as a key intermediate in chemical manufacturing.

Lubricants made with chlorinated paraffins have powered metalworking shops and automotive plants, offering thermal stability and smooth mechanical function. Chlorooctadecane blends into that role with minimal fuss, giving heavy-duty greases or cutting fluids an extra edge. Oil formulations that need more than what basic hydrocarbons bring often look to these long-chain compounds for better performance under heat or pressure. Factories that bottle lube oils, manufacture adhesives, or churn out wax polishes rely on reliable feedstocks—and this molecule delivers time after time.

Not Just a Background Player

Beyond machinery, 1-Chlorooctadecane finds its way into surfactants, those chemicals that help blend oils and water in soaps and household cleaners. Its chain structure lets it link up with other compounds, altering the solubility or texture of products. In labs that develop everything from cleaning formulas to specialty coatings for cables or wires, tinkering with the ratios of chlorinated hydrocarbons gives chemists more control over the end result. Odd as it sounds, something as simple as an effective shampoo or stable floor cleaner might owe a smoother texture or longer shelf life to chemicals like this one.

Industrial coatings—those shiny surfaces on tools or appliance parts—depend on molecules that boost moisture resistance and keep corrosion at bay. Chlorooctadecane lends a hydrophobic touch, helping repel water and shield underlying metals. As someone who once watched metal fasteners turn orange with rust after a rainy summer, I see the need for real solutions like this in construction or infrastructure repair. The right additive in the paint or undercoat helps parts last years longer, saving businesses and homeowners headaches down the road.

Safety, Scrutiny, and Smarter Choices

As chemical use spreads, questions about safety grow more pressing. The long-term environmental fate of chlorinated organics can spark concern, especially as more data emerges on things like acidification or persistence in soil. Regulatory agencies, consumer advocates, and forward-thinking companies keep an eye on these issues, requesting more transparency and research into what happens after the product leaves the factory. People who use cleaners, work with cutting fluids, or handle adhesives should ask questions about ingredient safety and whether alternatives exist for risky compounds.

Some manufacturers experiment with bio-based ingredients or safer, non-chlorinated replacements. Cleaner production and smarter waste handling can minimize risks, helping balance modern chemical convenience with a respect for long-term health and the planet. Learning about compounds like 1-Chlorooctadecane connects everyday choices with global impacts—a hidden chemistry lesson most folks don’t realize shapes their world.

What are the safety precautions when handling 1-Chlorooctadecane?

Nothing Beats the Basics: Why Protective Gear Matters

The first time I handled unfamiliar chemicals in a college lab, I learned to never ignore eye protection and gloves, even for simple tasks. With something like 1-Chlorooctadecane, this common sense makes a huge difference. You never really know when a splash or a spill could happen. Disposable nitrile gloves seal out the risk. Safety goggles keep eyes out of harm’s way. Even a small amount on your skin or near your face deserves a careful response, since direct contact can irritate or even harm you.

Breathe Easy: Ventilation Is Critical

I once underestimated how quickly certain fumes can build up, even in a bigger space. 1-Chlorooctadecane isn’t as volatile as some solvents. That can make it tempting to skip the fume hood or an exhaust fan, but breathing in vapors over time can hurt your lungs, and odd smells are a red flag. Good air flow means you’re not relying on luck to keep you healthy. It’s a lesson that sticks—every workspace needs fresh air moving through when chemicals are in play.

Respect the Label: Understanding Properties and Hazards

Labels on chemical containers are there for a reason. Even if you work with chemicals every day, don’t treat the label as background noise. 1-Chlorooctadecane can sneak up as a skin or eye irritant. Some folks can get a rash or red eyes from very minor exposure. Eye washing stations and emergency showers at arm’s reach help if things go sideways. I've seen workers avoid more serious trouble just because the proper first aid was seconds away.

Spill-proof Your Routine

Spills don’t wait for a convenient moment. Over the years, I've seen how quickly drips run across a bench and onto the floor. Absorbent pads—something as simple as paper towels in a pinch—stop chemicals from spreading. Cleaning up right away, disposing of waste the right way, and staying off bare hands are habits worth hammering into muscle memory. No one wants to spend time sorting out a mess that was easy to avoid.

Storage: Out of Sight, Not Out of Mind

You can’t just leave chemical bottles anywhere. Stashing 1-Chlorooctadecane on a sunny windowsill or near a heat source is asking for trouble. Even stable compounds break down over time or react if they're sitting in the wrong spot. Locking it away in a labeled, ventilated cabinet, away from food or drinks, keeps curious hands from bumping into it. Even after hours, chemicals don't care about your schedule, so reliability in storage set-ups matters.

Building Smarter Habits for Every Worker

Safety guidelines only work if everyone follows them. It always comes down to routines. Regular training can seem repetitive, but it keeps safety front and center. Sharing mistakes and near-misses—rather than hiding them—raises everyone’s awareness. Anyone who handles lab-grade chemicals stands to benefit from these safeguards. Clear plans, open communication, and a proper respect for even seemingly mild substances like 1-Chlorooctadecane shape a culture where safety isn’t an afterthought.

Looking Ahead: Reducing Risks, Supporting Health

In my experience, smaller changes create some of the best progress in chemical safety. Swapping to less hazardous alternatives, updating equipment, and never cutting corners with PPE pay off in worker health and peace of mind. For organizations, keeping safety sheets updated and letting people speak up about concerns provide real support—not just empty words. Smarts, solid habits, and the right tools make a world of difference for anyone facing a bottle of 1-Chlorooctadecane or any similar substance.

What is the chemical formula and structure of 1-Chlorooctadecane?

The Basics: Formula and Structure Up Close

1-Chlorooctadecane grabs attention because of its straightforward chemical backbone. Its formula is C18H37Cl. That means the molecule runs from a chain of eighteen carbon atoms, each carrying its share of hydrogens, and tacks on a single chlorine atom right at the end. You won’t find any branching or fancy rings—just a long, straight hydrocarbon linked up with chlorine at one tip. This comes with its own set of properties and uses, shaped by real chemistry rather than marketing promises.

Why a Single Chlorine Atom Makes All the Difference

It’s easy to look at 1-Chlorooctadecane and think of it as “just another chloroalkane,” but swapping one hydrogen for a chlorine changes a lot. That chlorine doesn’t just float around; it sits right at the first carbon in the chain. That position means its reactivity, solubility, and how it interacts with other substances all shift from a plain hydrocarbon. Even in the lab, you end up with a molecule that resists water, stays solid at room temperature, and handles heat in a very predictable way. Even without working in a chemical plant, it’s impossible not to notice the way a single tweak turns a basic alkane into something worth a closer look.

Real-World Relevance for Industry and Researchers

Anyone who’s melted wax, dealt with lubricants, or brushed up on surfactant chemistry will see the reason for all this detail. A chain this long—eighteen carbon atoms—already points to low volatility, waxy feel, and slow breakdown. Tossing a chlorine atom onto the end helps products stick around longer, resist microbial attacks, and act as chemical intermediates for making everything from anti-static agents to specialty coatings. In the lab, I’ve used chlorinated alkanes like this as building blocks for synthesizing more complex molecules, mainly because they’re tame enough to handle but reactive enough at the chlorinated site to keep projects moving forward. Low toxicity and environmental risks, as documented in PubChem and by expert chemical risk reviews, mean the molecule rarely causes regulatory headaches, though caution still matters due to persistence and long-term effects.

Comparing Structure: Why Placement Matters

Having chlorine on the first carbon sets 1-Chlorooctadecane apart. Place that halogen deeper into the chain, you’ll see different physical behavior—changes in melting point, solubility, and reactivity. Chemists pay attention to that detail. This sort of precision affects how a molecule fits into larger reactions, which industries chase for more efficient processes and greener chemistry. Careful placement of halogens isn’t just about textbook diagrams; it underpins proprietary research, patent claims, and new product launches.

Facing Challenges: Synthesis and Environment

One snag comes with overuse or careless disposal. Chlorinated compounds, especially those with long chains, can hang around in the environment. As seen in reports from the European Chemicals Agency, it’s crucial to keep waste controlled and look for new synthesis pathways with less environmental drag. On the production side, scalable processes exist for making 1-Chlorooctadecane from octadecane or octadecene using selective chlorination, though controlling reaction conditions is key to avoid byproducts.

Steps Forward: Smarter Use and Safer Practices

While the chemistry seems settled, there’s plenty of room for better solutions. Tightening regulations, greener catalysts, and new recycling strategies will play a role in the life cycle of 1-Chlorooctadecane. When I handled hazardous waste in a university lab, I saw how small changes in procedure made a big impact on safety and compliance. Experts agree: the safest chlorinated compounds are those you can account for from synthesis to disposal, with full transparency and minimal loss.

How should 1-Chlorooctadecane be stored?

A Long Chain, Some Chlorine, Big Responsibility

1-Chlorooctadecane — a compound built around a long chain of carbon atoms, capped off with a single chlorine. If you’ve handled it in a lab, you know this stuff isn’t just some casual chemical. Slippery, colorless, and with a faint odor, it often shows up in research or niche manufacturing. Chemically, it looks tame, but this compound packs a punch in both environmental persistence and potential harm if managed carelessly.

Key Storage Factors from Personal Experience

My first run-in with 1-Chlorooctadecane came during a summer internship in an underfunded university lab. That bottle, sitting half-forgotten on a shelf, wasn’t just clutter. It earned that spot because of some simple science — this chemical reacts to light, air, and heat in ways that can lead to degradation or accidental exposure. Molecular stability is tied to cool, dark places. We learned to stash it in amber glass, kept away from sunlight, cut off from the urge to just throw everything in the same “chemical storage” room.

Corrosion can be sneaky. Chlorinated organics, especially, tend to soften plastics or eat away at rubber seals. Over time, you risk leaks or a gunked-up mess on the shelf. I learned early on to check lids, watch for stained labels, and never assume “factory packaging” means safe forever.

Keeping People Safe, Not Just the Chemical

OSHA and the CDC echo these common-sense steps. Training includes more than a fire extinguisher walk-through. Anyone working near 1-Chlorooctadecane needs real gear: safety goggles, thick nitrile gloves, fitted lab coats. The smell, subtle as it seems, signals the need for proper ventilation. Fume hoods aren’t just for dramatic effect in the movies — they keep volatile fumes out of your lungs.

Spills won’t clean themselves. Absorbent pads, dedicated chemical waste bins, and clear labels cut down on panic and accidents. The environmental persistence of long-chain chlorinated compounds scares me, because once it gets into soil or water, remediation is tough. Strict protocols matter not because of regulation, but because mistakes ripple outward.

Temperature and Compatibility

Temperature control matters. 1-Chlorooctadecane should be kept at room temperature or cooler, but never in a freezer with food, drinks, or pharmaceuticals. Shared spaces breed cross-contamination. A locked chemical refrigerator keeps it separate and secure.

Compatibility saves headaches. Store it far from strong oxidizers, acids, or open flames. Some labs use color-coded systems to avoid neighbor chemicals causing surprise fires or toxic mixes. I’ve seen panic in a lab when incompatible chemicals sat inches apart–a close call that led to extra training and better checklists.

Records and Longevity

Every movement of a bottle tells a story. Reliable tracking, from delivery to disposal, keeps labs accountable. Dates, batch numbers, and users help spot problems and avoid expired stock. Mistakes, like using a degraded or mislabeled chemical, can ruin years of research — or worse, injure people.

Disposal isn’t an afterthought. This chemical can’t go down the drain or in ordinary trash. I’ve always worked with designated hazardous waste pickups, tightly sealed containers, and the paperwork to match.

Respecting 1-Chlorooctadecane means treating it as more than a formula in a book. Every step, from storage to disposal, shapes lab safety and environmental health.

Is 1-Chlorooctadecane hazardous to health or the environment?

What's 1-Chlorooctadecane Doing Out There?

If you’ve ever worked in a chemistry lab, 1-Chlorooctadecane might ring a bell. It pops up in research settings more often than in an average home, and it crops up in some specialty industrial uses. On paper, it’s just a long-chain chlorinated alkane. In reality, chemicals like this don’t exist in a vacuum—they interact with people, things, and nature.

Human Health: What Are We Looking At?

Getting to the point: there’s not a mountain of research on 1-Chlorooctadecane’s health effects in people. That worries me. Often, a lack of data makes it easy to underestimate risk just because there's no evidence to the contrary, not because anyone proved it's safe. Chlorinated alkanes as a group have sent up warning flags in the past. Shorter chains—like those found in old school dry cleaning solvents—carry clear risks, including skin irritation, eye trouble, and sometimes trouble in the lungs if you breathe in a lot of vapors.

Based on its structure, 1-Chlorooctadecane doesn’t evaporate easily. Low volatility means it doesn’t jump from a liquid into the air at room temperature. That can lower risk of inhalation in most workplaces. Still, it’s wise to keep chemical gloves on and avoid skin contact. Some chlorinated compounds work their way into the body through the skin, and chronic exposure can lead to bioaccumulation in fatty tissues. It rarely ends well—think about PCBs and other long-chain chlorinated organics. More research is overdue, but the chemical’s family has a questionable health track record, so caution makes sense.

Environmental Concerns Run Deep

The environment never keeps secrets. Chlorinated hydrocarbons are famous for sticking around. They tend to break down slowly if at all, especially those with big carbon backbones. If manufacturers or labs dump this stuff irresponsibly, it can build up in soil and water, making its way into the food chain. Experience tells me persistent organics often attract more attention decades down the line, after wildlife and people face side effects.

Aquatic organisms, in particular, have a tough time with stable chlorinated compounds. They can’t break them down well, and the chemicals keep climbing the food chain, causing reproductive problems, cancers, and other disasters in top predators. The story is familiar: DDT, PCBs, and similar substances triggered major environmental crises not because they killed outright, but through decades of quiet, invisible build-up. 1-Chlorooctadecane walks that same chemical line.

Facing the Risks and Taking Responsibility

Practical experience in regulated labs has taught me that using gloves, proper goggles, and properly vented hoods reduces exposure. It also makes sense to train staff well—never assume a chemical is safe just because it's obscure or doesn’t come with a thick warning label. Waste handling matters every bit as much as lab habits. Proper containers, scheduled waste pickups, and clear labeling form the frontline defense against accidental environmental release.

Public policy shouldn’t wait for every scientific study before acting with caution. Regulators, manufacturers, and labs ought to treat 1-Chlorooctadecane with the kind of respect reserved for any persistent, bioaccumulative chemical. Substituting safer alternatives where possible, tightening controls on emissions or disposal, and investing in more research would help. Companies who work with this compound have an obligation to review not only current evidence but also lessons learned from history—too often a lack of immediate disaster led to big regrets.

1-Chlorooctadecane
1-Chlorooctadecane
1-Chlorooctadecane
Names
Preferred IUPAC name 1-chlorooctadecane
Other names Chlorooctadecane
Octadecyl chloride
Pronunciation /ˌwʌnˌklɔːroʊ.ɒkˈteɪ.deɪn/
Identifiers
CAS Number 112-88-9
Beilstein Reference 1208738
ChEBI CHEBI:34485
ChEMBL CHEMBL153112
ChemSpider 16223
DrugBank DB14141
ECHA InfoCard ECHA InfoCard: 100_014_296
EC Number 203-849-1
Gmelin Reference 57263
KEGG C14432
MeSH D002756
PubChem CID 12408
RTECS number RG3800000
UNII 8A1V262BUS
UN number UN3082
Properties
Chemical formula C18H37Cl
Molar mass 320.00 g/mol
Appearance Colorless liquid
Odor mild odor
Density 0.844 g/mL at 25 °C(lit.)
Solubility in water Insoluble
log P 8.9
Vapor pressure 0.000023 mmHg at 25°C
Acidity (pKa) 16.0
Magnetic susceptibility (χ) -7.49e-5
Refractive index (nD) 1.4340
Viscosity 5.28 mPa·s (20°C)
Dipole moment 2.56 D
Thermochemistry
Std molar entropy (S⦵298) 572.7 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -302.65 kJ mol-1
Std enthalpy of combustion (ΔcH⦵298) -11940 kJ·mol⁻¹
Hazards
Main hazards Causes skin irritation. Causes serious eye irritation. Toxic to aquatic life with long lasting effects.
GHS labelling GHS07, GHS09
Pictograms GHS07
Signal word Warning
Hazard statements H315, H319, H335
Precautionary statements Precautionary statements of 1-Chlorooctadecane: "P261, P273, P280, P305+P351+P338, P337+P313
Flash point 168 °C
Autoignition temperature 210 °C
Lethal dose or concentration LD50 (rat, oral): >5,000 mg/kg
LD50 (median dose) LD50 (median dose): Rat oral >5 gm/kg
NIOSH NA0450000
PEL (Permissible) Not established
REL (Recommended) 0.1
Related compounds
Related compounds 1-Bromooctadecane
1-Iodooctadecane
Octadecane
1-Chlorohexadecane