Substance profile
Bromoethene
Bromoethene is gas under normal atmospheric conditions, colorless liquid under pressure with a characteristic pungent odor.
01 · Identification
What Bromoethene is
Bromoethene is gas under normal atmospheric conditions, colorless liquid under pressure with a characteristic pungent odor. Its molecular formula is C2H3Br and its molecular weight is 106.95 g/mol. It boils at 15.8 °C, melts at -138 °C, is soluble in water.
Under the GHS it carries the signal word Danger. It is classed as hazardous Air Pollutants (HAPs).
02 · Identifiers
Bromoethene identifiers and molecular data
Bromoethene CAS number and EC number
Bromoethene molecular formula and molecular weight
Other names for Bromoethene
- bromoethylene
03 · GHS classification
Bromoethene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Bromoethene pictograms and signal word
Bromoethene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable gases GHS chapter 2.2 | Category 1A | H220 | GHS02 |
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | GHS08 |
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.
Bromoethene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H220 | Extremely flammable gas. |
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
This page lists only the codes assigned to Bromoethene. 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 Bromoethene
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 Bromoethene 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
Bromoethene precautionary statements
CLP Annex VI assigns 7 precautionary statements to Bromoethene. 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
Bromoethene 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 | бромоетилен |
| Spanish español | Bromoetileno |
| Czech čeština | bromethen vinylbromid |
| Danish dansk | bromethylen |
| German Deutsch | Bromethen Vinylbromid |
| Estonian eesti | bromoetüleen |
| Greek ελληνικά | βρωμοαιθυλένιο |
| English English | bromoethylene |
| French français | bromoéthylène |
| Croatian hrvatski | brometilen |
| Italian italiano | bromoetilene |
| Latvian latviešu | brometilēns |
| Lithuanian lietuvių | brometilenas |
| Hungarian magyar | brómetilén |
| Maltese Malti | bromoetilen |
| Dutch Nederlands | broomethyleen |
| Polish polski | bromoeten bromek winylubromoetylen |
| Portuguese português | bromoetileno |
| Romanian română | brometilen |
| Slovak slovenčina | brómetén |
| Slovenian slovenščina | bromoetilen |
| Finnish suomi | bromietyleeni vinyylibromidi |
| Swedish svenska | brometen |
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
Bromoethene GHS label elements
Everything CLP Annex VI fixes for Bromoethene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Bromoethene
- Extremely flammable gas.
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Obtain special instructions before use.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Bromoethene in the GHS label constructor →
07 · Health hazards
Bromoethene health hazards and exposure limits
Bromoethene hazard summary
Workers may be occupationally exposed to vinyl bromide via inhalation during its manufacture or use. Acute (short-term) and chronic (long-term) studies indicate that the liver is the primary target organ following inhalation exposure to vinyl bromide in humans and animals. In high concentrations, vinyl bromide may produce dizziness, disorientation, and sleepiness in humans. Acute exposure of rats to very high concentrations via inhalation has showed liver and kidney damage and neurological effects. Chronic inhalation exposure primarily damages the liver, causing foci in the liver of rats. Vinyl bromide has been shown to be a potent carcinogen in rats exposed by inhalation, producing liver angiosarcomas. EPA has classified vinyl bromide as a Group B2, probable human carcinogen.
Source: EPA Hazardous Air Pollutants
Bromoethene carcinogenicity classification
Vinyl Bromide: reasonably anticipated to be a human carcinogen.
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.
Bromoethene occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | Ca See Appendix A | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | A potential occupational carcinogen. (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | NIOSH considers vinyl bromide to be a potential occupational carcinogen. | Hazardous Substances Data Bank (HSDB) |
| IDLH | Ca [N.D.] | 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
Bromoethene 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.
Bromoethene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 15.8 °C (60.4 °F) | at 760 mmHg | HSDB |
| 15.56 °C (60 °F) | NIOSH | ||
| 15.78 °C (60.4 °F) | at 760 mmHg | CAMEO |
Bromoethene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -137.8 °C (-216 °F) | HSDB | |
| -139.44 °C (-219 °F) | NIOSH | ||
| -139.5 °C (-219.1 °F) | CAMEO |
Bromoethene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.49 g/cm³ | ICSC | |
| 1.4933 g/cm³ | at 20 °C | HSDB | |
| 1.49 g/cm³ | at 20 °C | CAMEO |
Bromoethene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in chloroform, ethanol, ether, acetone, and benzene | HSDB | |
| Insoluble | NIOSH | ||
| Insol in water @ 20 °C | at 20 °C | HSDB |
Bromoethene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1064 mmHg | NIOSH | |
| 895 mmHg | at 20 °C | CAMEO | |
| 1033 mmHg | at 25 °C | HSDB |
Bromoethene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | -7.78 °C (18 °F) | below this value | CAMEO |
Bromoethene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 530 °C (986 °F) | HSDB | |
| 472.22 °C (882 °F) | CAMEO |
Bromoethene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 9 % by volume | HSDB |
Bromoethene upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 15 % by volume | NIOSH |
Bromoethene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.7 (air = 1) | HSDB |
Bromoethene critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 190.36 °C (374.6 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Bromoethene 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.
Bromoethene fire potential
A VERY DANGEROUS FIRE HAZARD WHEN EXPOSED TO HEAT OR FLAME.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Bromoethene storage and handling
Bromoethene safe storage
Fireproof. Cool. Keep in a well-ventilated room. Separated from oxidants. Store only if stabilized.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Bromoethene storage conditions
Keep container in a well-ventilated place.
Source: Hazardous Substances Data Bank (HSDB)
Bromoethene incompatible materials
... Reacts violently with oxidants ... .
Source: Hazardous Substances Data Bank (HSDB)
Bromoethene reactivity
VINYL BROMIDE is a light sensitive, peroxidizable monomer may initiate exothermic polymerization of the bulk material [Handling Chemicals Safely 1980. p. 958]. It will react violently with oxidants.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Bromoethene in the storage compatibility matrix →
11 · Questions
Bromoethene — frequently asked questions
What is the CAS number of Bromoethene?
The CAS number of Bromoethene is 593-60-2. Its EC number is 209-800-6.
What is the chemical formula of Bromoethene?
The molecular formula of Bromoethene is C2H3Br and its molecular weight is 106.95 g/mol.
What does a Bromoethene label have to show?
Under CLP Annex VI the label for Bromoethene carries the pictograms Flame and Health hazard and the signal word is Danger.
Is Bromoethene flammable?
Yes. CLP Annex VI assigns Bromoethene H220 — extremely flammable gas. The flash point reported for it is -7.78 °C (18 °F), below this value (CAMEO).
Is Bromoethene a carcinogen?
Yes. CLP Annex VI classifies Bromoethene as a category 1A or 1B carcinogen and assigns it H350: may cause cancer. IARC places it in Group 2A: probably carcinogenic to humans.
What is the exposure limit for Bromoethene?
The US occupational exposure limit reported for Bromoethene 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 Bromoethene?
The boiling point reported for Bromoethene is 15.8 °C (60.4 °F), at 760 mmHg (HSDB).
What is the melting point of Bromoethene?
The melting point reported for Bromoethene is -137.8 °C (-216 °F) (HSDB).
How should Bromoethene be stored?
CLP Annex VI assigns Bromoethene the storage statement P403. Keep container in a well-ventilated place. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Bromoethene
Keep going: substances starting with B, or search the whole database by name, CAS number, pictogram or signal word.