Substance profile
1-chlorobutane
1-chlorobutane is a colorless liq with an unpleasant odor.
01 · Identification
What 1-chlorobutane is
1-chlorobutane is a colorless liq with an unpleasant odor. Its molecular formula is C4H9Cl and its molecular weight is 92.57 g/mol. It boils at 78.5 °C, melts at -123 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
1-chlorobutane identifiers and molecular data
1-chlorobutane CAS number and EC number
1-chlorobutane molecular formula and molecular weight
Other names for 1-chlorobutane
- butyl chloride
03 · GHS classification
1-chlorobutane hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
1-chlorobutane pictograms and signal word
1-chlorobutane hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 2 | H225 | GHS02 |
1-chlorobutane hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H225 | Highly flammable liquid and vapour. |
This page lists only the codes assigned to 1-chlorobutane. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for 1-chlorobutane
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of 1-chlorobutane issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
1-chlorobutane precautionary statements
CLP Annex VI assigns 5 precautionary statements to 1-chlorobutane. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
1-chlorobutane name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | 1-хлоробутан бутилхлорид |
| Spanish español | 1-Clorobutano cloruro de butilo |
| Czech čeština | 1-chlorbutan butylchlorid |
| Danish dansk | 1-chlorbutan butylchlorid |
| German Deutsch | 1-Chlorbutan Butylchlorid |
| Estonian eesti | 1-klorobutaan butüülkloriid |
| Greek ελληνικά | 1-χλωροβουτάνιο βουτυλοχλωρίδιο |
| English English | 1-chlorobutane butyl chloride |
| French français | 1-chlorobutane chlorure de butyle |
| Croatian hrvatski | 1-klorbutan butil-klorid |
| Italian italiano | 1- clorobutano cloruro di butile |
| Latvian latviešu | 1-hlorbutāns butilhlorīds |
| Lithuanian lietuvių | 1-chlorbutanas butilchloridas |
| Hungarian magyar | 1-klórbután butil-klorid |
| Maltese Malti | 1-klorobutan klorur tal-butil |
| Dutch Nederlands | 1-chloorbutaan butylchloride |
| Polish polski | 1-chlorobutan chlorek butylu |
| Portuguese português | 1-clorobutano cloreto de butilo |
| Romanian română | 1-clorobutan clorură de butil |
| Slovak slovenčina | 1-chlórbután butylchlorid |
| Slovenian slovenščina | 1-klorobutan butil klorid |
| Finnish suomi | 1-klooributaani butyylikloridi |
| Swedish svenska | 1-klorbutan butylklorid |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
1-chlorobutane GHS label elements
Everything CLP Annex VI fixes for 1-chlorobutane, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
1-chlorobutane
- Highly flammable liquid and vapour.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 1-chlorobutane in the GHS label constructor →
07 · Health hazards
1-chlorobutane health hazards and exposure limits
1-chlorobutane hazard summary
Dangerous fire risk; [Hawley] Reacts slowly with water evolving hydrochloric acid; A skin, eye, and respiratory tract irritant; The substance may cause effects on the nervous system. [ICSC] A skin and eye irritant; [HSDB] A mild skin and eye irritant based on animal studies; [CHEMINFO] An irritant; Effects in high-dose animal studies (subacute and chronic) include convulsions or effect on seizure threshold; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
1-chlorobutane carcinogenicity classification
Under the conditions of these 2-year gavage studies, there was no evidence of carcinogenicity of n-butyl chloride for male and female F344/N rats at daily doses of 60 or 120mg/kg, for male B6C3F1 mice at doses of 250, 500, or 1,000 mg/kg, or for female B6C3F1 mice at doses of 250 or 500 mg/kg. Chemical-induced toxicity in high dose rats (primarily females) reduced the sensitivity of the study for determining carcinogenicity.
Source: US National Toxicology Program · TR-312: Toxicology and Carcinogenesis Studies of n-Butyl Chloride (CASRN 109-69-3) in F344/N Rats and B6C3F1 Mice (Gavage Studies) (1986 )
CLASSIFICATION: D; not classifiable as to human carcinogenicity. BASIS FOR CLASSIFICATION: Based on no human carcinogenicity data and inadequate animal data. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: Inadequate.
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
08 · Physical and chemical properties
1-chlorobutane properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
1-chlorobutane boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 78.5 °C (173.3 °F) | at 760 mmHg | HSDB |
1-chlorobutane melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -123.1 °C (-189.6 °F) | HSDB | |
| -123.11 °C (-189.6 °F) | CAMEO | ||
| -123 °C (-189.4 °F) | ICSC |
1-chlorobutane density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.8862 g/cm³ | at 20 °C | CAMEO |
| 0.89 g/cm³ | at 20 °C | ICSC | |
| 0.881 g/cm³ | at 25 °C | HSDB |
1-chlorobutane solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in water, g/l at 25 °C: 0.87 (practically insoluble) | at 25 °C | ICSC |
| less than 1 mg/mL at 59 °F (NTP, 1992) | at 15 °C | CAMEO | |
| PRACTICALLY INSOL IN WATER (0.066% @ 12 °C); MISCIBLE WITH ALC, ETHER | at 12 °C | HSDB |
1-chlorobutane vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 80.1 mmHg | at 20 °C | HSDB |
| 82.5068 mmHg | at 20 °C | ICSC |
1-chlorobutane flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | -9.44 °C (15 °F) | HSDB | |
| -6.67 °C (20 °F) | CAMEO | ||
| -12 °C (10.4 °F) | ICSC |
1-chlorobutane autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 460 °C (860 °F) | HSDB | |
| 245 °C (473 °F) | ICSC |
1-chlorobutane lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.8 % by volume | HSDB | |
| 1.9 % by volume | HSDB |
1-chlorobutane upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 10.1 % by volume | HSDB |
1-chlorobutane vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.2 (air = 1) | HSDB |
1-chlorobutane odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Odor low: 3.3352 mg/cu m; Odor high: 6.3293 mg/cu m | HSDB | |
| Odor Threshold Low: 0.93 [ppm] | Haz-Map | ||
| Odor Threshold High: 1.64 [ppm] | Haz-Map |
1-chlorobutane critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 269 °C (516.2 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
1-chlorobutane fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
1-chlorobutane fire potential
FLAMMABLE, DANGEROUS FIRE RISK.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
1-chlorobutane storage and handling
1-chlorobutane safe storage
Fireproof. Separated from incompatible materials. Well closed. Keep in a well-ventilated room. Store in an area without drain or sewer access. See Chemical Dangers.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
1-chlorobutane reactivity
BUTYL CHLORIDE is incompatible with oxidizing agents and strong bases. Reacts with aluminum powder, magnesium, liquid oxygen, potassium and sodium (NTP, 1992). Emits phosgene gas when heated to decomposition. May be sensitive to heat.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 1-chlorobutane in the storage compatibility matrix →
11 · Questions
1-chlorobutane — frequently asked questions
What is the CAS number of 1-chlorobutane?
The CAS number of 1-chlorobutane is 109-69-3. Its EC number is 203-696-6.
What is the chemical formula of 1-chlorobutane?
The molecular formula of 1-chlorobutane is C4H9Cl and its molecular weight is 92.57 g/mol.
What does a 1-chlorobutane label have to show?
Under CLP Annex VI the label for 1-chlorobutane carries the pictogram Flame and the signal word is Danger.
Is 1-chlorobutane flammable?
Yes. CLP Annex VI assigns 1-chlorobutane H225 — highly flammable liquid and vapour. The flash point reported for it is -9.44 °C (15 °F) (HSDB).
Is 1-chlorobutane a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for 1-chlorobutane. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the boiling point of 1-chlorobutane?
The boiling point reported for 1-chlorobutane is 78.5 °C (173.3 °F), at 760 mmHg (HSDB).
What is the melting point of 1-chlorobutane?
The melting point reported for 1-chlorobutane is -123.1 °C (-189.6 °F) (HSDB).
How should 1-chlorobutane be stored?
CLP Annex VI assigns 1-chlorobutane the storage statement P403.
Nearby
Substances next to 1-chlorobutane
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