Substance profile
Butyl Acrylate
Butyl Acrylate is a colorless liquid with a sharp, fragrant odor.
01 · Identification
What Butyl Acrylate is
Butyl Acrylate is a colorless liquid with a sharp, fragrant odor. Its molecular formula is C7H12O2 and its molecular weight is 128.17 g/mol. It boils at 145 °C, melts at -64.6 °C.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 3rd degree.
02 · Identifiers
Butyl Acrylate identifiers and molecular data
Butyl Acrylate CAS number and EC number
Butyl Acrylate molecular formula and molecular weight
Other names for Butyl Acrylate
- n-butyl acrylate
03 · GHS classification
Butyl Acrylate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Butyl Acrylate pictograms and signal word
Butyl Acrylate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 2 | H315 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Specific target organ toxicity - single exposure GHS chapter 3.8 | Category 3 | H335 | GHS07 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Butyl Acrylate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H335 | May cause respiratory irritation. |
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
| H317 | May cause an allergic skin reaction. |
This page lists only the codes assigned to Butyl Acrylate. 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 Butyl Acrylate
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 Butyl Acrylate 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
Butyl Acrylate precautionary statements
CLP Annex VI assigns 17 precautionary statements to Butyl Acrylate. 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.
Response
What to do once exposure, spillage or fire has already happened.
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
Butyl Acrylate 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 | n -бутилов акрилат |
| Spanish español | Acrilato de n -butilo |
| Czech čeština | butyl-akrylát |
| Danish dansk | butylacrylat |
| German Deutsch | n -Butylacrylat |
| Estonian eesti | n -butüülakrülaat |
| Greek ελληνικά | ακρυλικός n -βουτυλεστέρας ακρυλικό n -βουτύλιο |
| English English | n -butyl acrylate |
| French français | acrylate de n -butyle |
| Croatian hrvatski | n -butil-akrilat |
| Italian italiano | acrilato di n -butile n -butilacrilato |
| Latvian latviešu | n -butilakrilāts |
| Lithuanian lietuvių | n -butilakrilatas |
| Hungarian magyar | n -butil-akrilát |
| Maltese Malti | akrilat ta’ n -butil |
| Dutch Nederlands | n -butylacrylaat |
| Polish polski | akrylan butylu ester butylowy kwasu akrylowego |
| Portuguese português | acrilato de n -butilo |
| Romanian română | acrilat de n -butil |
| Slovak slovenčina | n -butyl-akrylát |
| Slovenian slovenščina | n -butil akrilat |
| Finnish suomi | n -butyyliakrylaatti |
| Swedish svenska | n -butylakrylat |
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
Butyl Acrylate GHS label elements
Everything CLP Annex VI fixes for Butyl Acrylate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Butyl Acrylate
- Flammable liquid and vapour.
- May cause respiratory irritation.
- Causes skin irritation.
- Causes serious eye irritation.
- May cause an allergic skin reaction.
- 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.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Wash … thoroughly after handling.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF ON SKIN:
- IF IN EYES:
- Get medical advice/attention.
- If skin irritation occurs:
- If skin irritation or rash occurs:
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- Wash with plenty of water/…
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Butyl Acrylate in the GHS label constructor →
07 · Health hazards
Butyl Acrylate health hazards and exposure limits
Butyl Acrylate hazard summary
Can cause skin sensitization; Can cause pulmonary edema after heavy inhalation exposure; [ICSC] If left on clothing, can cause reddening of skin; [CHRIS] Butyl acrylate is a skin irritant. [Quick CPC] A lachrymator; [HSDB] A dermal sensitizer; [ACGIH] Butyl acrylates, stabilized (UN2348) has warning of explosive polymerization; [ERG 2016]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Butyl Acrylate carcinogenicity classification
Evaluation: No epidemiological data relevant to the carcinogenicity of n-butyl acrylate were available. There is inadequate evidence in experimental animals for the carcinogenicity of n-butyl acrylate. Overall Evaluation: n-Butyl acrylate is not classifiable as to its carcinogenicity to humans (Group 3).
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.
Butyl Acrylate occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 10 ppm (55 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 10 ppm (55 mg/m³) | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 113 ppm (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 113 ppm | The National Institute for Occupational Safety and Health (NIOSH) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Butyl Acrylate 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.
Butyl Acrylate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 145 °C (293 °F) | HSDB | |
| 138 °C (280.4 °F) | at 760 mmHg | HSDB |
Butyl Acrylate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -64.6 °C (-84.3 °F) | HSDB | |
| -63.89 °C (-83 °F) | NIOSH | ||
| -64.61 °C (-84.3 °F) | CAMEO |
Butyl Acrylate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.89 g/cm³ | NIOSH | |
| 0.8898 g/cm³ | at 20 °C | HSDB | |
| 0.899 g/cm³ | at 20 °C | CAMEO |
Butyl Acrylate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Sol in ethanol, ethyl ether, acetone; slightly soluble in carbon tetrachloride | HSDB | |
| Solubility of water in n-butyl acrylate at 20 °C: 0.8 mL/100 g | at 20 °C | HSDB | |
| 0.14 g/100 mL water at 20 °C; 9.12 g/100 mL at 40 °C | at 20 °C | HSDB |
Butyl Acrylate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 4 mmHg | NIOSH | |
| 3.2253 mmHg | at 20 °C | ICSC | |
| 5.45 mmHg | at 25 °C | HSDB |
Butyl Acrylate flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 28.89 °C (84 °F) | HSDB | |
| 48.9 °C (120 °F) | HSDB | ||
| 39.44 °C (103 °F) | NIOSH |
Butyl Acrylate autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 292.78 °C (559 °F) | HSDB | |
| 278.89 °C (534 °F) | CAMEO | ||
| 267 °C (512.6 °F) | ICSC |
Butyl Acrylate lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.7 % by volume | HSDB | |
| 1.3 % by volume | HSDB | ||
| 1.5 % by volume | NIOSH |
Butyl Acrylate upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 9.9 % by volume | HSDB |
Butyl Acrylate vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 4.42 (air = 1) | HSDB |
Butyl Acrylate odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Odor Threshold Low: 0.00096 [ppm] | Haz-Map | |
| Odor Threshold High: 0.1 [ppm] | Haz-Map | ||
| Odor threshold from AIHA | Haz-Map |
Butyl Acrylate critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 327.22 °C (621 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Butyl Acrylate 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.
Butyl Acrylate fire potential
A flammable liquid when exposed to heat or flame.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Butyl Acrylate storage and handling
Butyl Acrylate safe storage
Fireproof. Cool. Keep in the dark. Separated from strong oxidants. Store only if stabilized.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Butyl Acrylate storage conditions
Do not store unless stabilized. Before entering a confined space where butyl acrylate may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well ventilated, fireproof area. Metal containers involving the transfer of this chemical should be grounded and bonded. Where possible, automatically pump liquid from drums or other storage containers to process containers. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers of this chemical. Sources of ignition, such as smoking and open flames, are prohibited where this chemical is used, handled, or stored in a manner that could create a potential fire or explosion hazard.
Source: Hazardous Substances Data Bank (HSDB)
Butyl Acrylate incompatible materials
Incompatible with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
Butyl Acrylate reactivity
BUTYL ACRYLATE reacts exothermically with acids to liberate heat along with alcohols and acids. Reacts with strong oxidizing agents, perhaps sufficiently exothermically to ignite the reaction products. Mixing with basic solutions generates heat. Generates flammable hydrogen with alkali metals and hydrides. Attacks many plastics [Handling Chemicals Safely 1980. p. 233]. Polymerizes readily, generating much heat in a reaction that is favored by heat and light [Handling Chemicals Safely 1980. p. 235].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Butyl Acrylate in the storage compatibility matrix →
11 · Questions
Butyl Acrylate — frequently asked questions
What is the CAS number of Butyl Acrylate?
The CAS number of Butyl Acrylate is 141-32-2. Its EC number is 205-480-7.
What is the chemical formula of Butyl Acrylate?
The molecular formula of Butyl Acrylate is C7H12O2 and its molecular weight is 128.17 g/mol.
What does a Butyl Acrylate label have to show?
Under CLP Annex VI the label for Butyl Acrylate carries the pictograms Flame and Exclamation mark and the signal word is Warning.
Is Butyl Acrylate flammable?
Yes. CLP Annex VI assigns Butyl Acrylate H226 — flammable liquid and vapour. The flash point reported for it is 28.89 °C (84 °F) (HSDB).
Is Butyl Acrylate a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Butyl Acrylate. 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. IARC places it in Group 3: not classifiable as to its carcinogenicity to humans.
What is the exposure limit for Butyl Acrylate?
The US occupational exposure limit reported for Butyl Acrylate is none See Appendix G (The National Institute for Occupational Safety and Health (NIOSH)). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Butyl Acrylate?
The boiling point reported for Butyl Acrylate is 145 °C (293 °F) (HSDB).
What is the melting point of Butyl Acrylate?
The melting point reported for Butyl Acrylate is -64.6 °C (-84.3 °F) (HSDB).
How should Butyl Acrylate be stored?
CLP Annex VI assigns Butyl Acrylate the storage statement P403. Do not store unless stabilized. Before entering a confined space where butyl acrylate may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well ventilated, fireproof area. Metal containers involving the transfer of this chemical should be grounded and bonded. Where possible, automatically pump liquid from drums or other storage containers to process containers. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers of this chemical. Sources of ignition, such as smoking and open flames, are prohibited where this chemical is used, handled, or stored in a manner that could create a potential fire or explosion hazard. (Hazardous Substances Data Bank (HSDB))
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