Substance profile
Bromobenzene
Bromobenzene is a mobile liquid with an aromatic odor.
01 · Identification
What Bromobenzene is
Bromobenzene is a mobile liquid with an aromatic odor. Its molecular formula is C6H5Br and its molecular weight is 157.01 g/mol. It boils at 156 °C, melts at -30.6 °C, is miscible with water.
Under the GHS it carries the signal word Warning. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Bromobenzene identifiers and molecular data
Bromobenzene CAS number and EC number
Bromobenzene molecular formula and molecular weight
03 · GHS classification
Bromobenzene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Bromobenzene pictograms and signal word
Bromobenzene 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 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
Bromobenzene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H315 | Causes skin irritation. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Bromobenzene. 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 Bromobenzene
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 Bromobenzene 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
Bromobenzene precautionary statements
CLP Annex VI assigns 14 precautionary statements to Bromobenzene. 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.
Disposal
What has to happen to the contents and the empty container.
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
Bromobenzene 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 | бромобензен |
| Spanish español | Bromobenceno |
| Czech čeština | brombenzen |
| Danish dansk | brombenzen |
| German Deutsch | Brombenzol |
| Estonian eesti | bromobenseen |
| Greek ελληνικά | βρωμοβενζόλιο |
| English English | bromobenzene |
| French français | bromobenzène |
| Croatian hrvatski | brombenzen |
| Italian italiano | bromobenzene |
| Latvian latviešu | brombenzols |
| Lithuanian lietuvių | brombenzenas |
| Hungarian magyar | brómbenzol |
| Maltese Malti | bromobenżen |
| Dutch Nederlands | broombenzeen |
| Polish polski | bromobenzen |
| Portuguese português | bromobenzeno |
| Romanian română | bromobenzen |
| Slovak slovenčina | brómbenzén |
| Slovenian slovenščina | bromobenzen |
| Finnish suomi | bromibentseeni |
| Swedish svenska | brombensen |
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
Bromobenzene GHS label elements
Everything CLP Annex VI fixes for Bromobenzene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Bromobenzene
- Flammable liquid and vapour.
- Causes skin irritation.
- Toxic to aquatic life with long lasting effects.
- 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.
- Wash … thoroughly after handling.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF ON SKIN:
- Get medical advice/attention.
- If skin irritation occurs:
- Wash with plenty of water/…
- Collect spillage.
- Store in a well-ventilated place.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Bromobenzene in the GHS label constructor →
07 · Health hazards
Bromobenzene health hazards and exposure limits
Bromobenzene hazard summary
A skin and eye irritant; [CAMEO] Anesthetic properties at high concentrations; Toxic to the liver in animal studies; Very toxic by ingestion with an estimated lethal dose of 50-500 mg per kilogram; [HSDB]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Bromobenzene 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.
Bromobenzene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 156.2 °C (313.2 °F) | at 760 mmHg | HSDB |
| 156.11 °C (313 °F) | at 760 mmHg | CAMEO | |
| 156.2 °C (313.2 °F) | ICSC |
Bromobenzene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -30.6 °C (-23.1 °F) | SOLIDIFIES | HSDB |
| -31.11 °C (-24 °F) | CAMEO | ||
| -30.7 °C (-23.3 °F) | ICSC |
Bromobenzene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.5 g/cm³ | ICSC | |
| 1.495 g/cm³ | at 20 °C | DOE PAC | |
| 1.49 g/cm³ | at 25 °C | CAMEO |
Bromobenzene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOL IN CARBON TETRACHLORIDE | HSDB | |
| Miscible with most organic solvents; insoluble in water | HSDB |
Bromobenzene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 4.18 mmHg | at 25 °C | HSDB |
| 4.1253 mmHg | at 25 °C | ICSC | |
| 5 mmHg | at 27.78 °C | CAMEO |
Bromobenzene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 51 °C (123.8 °F) | HSDB |
Bromobenzene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 565 °C (1049 °F) | HSDB | |
| 566 °C (1050.8 °F) | ICSC |
Bromobenzene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 6 % by volume | ICSC |
Bromobenzene upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 36.5 % by volume | ICSC |
Bromobenzene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 5.41 (air = 1) | HSDB |
Bromobenzene critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 397 °C (746.6 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Bromobenzene 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.
Bromobenzene fire potential
MODERATE, WHEN EXPOSED TO HEAT OR FLAME...
Source: Hazardous Substances Data Bank (HSDB)
Solubility
MISCIBLE WITH CHLOROFORM, BENZENE, PETROLEUM HYDROCARBONS; SOL IN ALCOHOL (10.4 G/100 G @ 25 °C), IN ETHER (71.3 G/100 G @ 25 °C); PRACTICALLY INOL IN WATER (0.045 G/100 G @ 30 °C)
Source: HSDB
10 · Handling and storage
Bromobenzene storage and handling
Bromobenzene safe storage
Fireproof. Ventilation along the floor.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Bromobenzene incompatible materials
DANGEROUS...CAN REACT WITH OXIDIZING MATERIALS.
Source: Hazardous Substances Data Bank (HSDB)
Bromobenzene reactivity
BROMOBENZENE may be sensitive to light. May react with oxidizing agents (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Bromobenzene in the storage compatibility matrix →
11 · Transport
Bromobenzene UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Bromobenzene under UN 2514 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| BROMOBENZENE | 3 | F1 | III | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 3 is “Flammable liquids” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Bromobenzene | 3 | III | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 3 is “Flammable and combustible liquid” (49 CFR 173.2).
12 · Questions
Bromobenzene — frequently asked questions
What is the CAS number of Bromobenzene?
The CAS number of Bromobenzene is 108-86-1. Its EC number is 203-623-8.
What is the chemical formula of Bromobenzene?
The molecular formula of Bromobenzene is C6H5Br and its molecular weight is 157.01 g/mol.
What does a Bromobenzene label have to show?
Under CLP Annex VI the label for Bromobenzene carries the pictograms Flame, Exclamation mark and Environment and the signal word is Warning.
Is Bromobenzene flammable?
Yes. CLP Annex VI assigns Bromobenzene H226 — flammable liquid and vapour. The flash point reported for it is 51 °C (123.8 °F) (HSDB).
Is Bromobenzene a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Bromobenzene. 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 Bromobenzene?
The boiling point reported for Bromobenzene is 156.2 °C (313.2 °F), at 760 mmHg (HSDB).
What is the melting point of Bromobenzene?
The melting point reported for Bromobenzene is -30.6 °C (-23.1 °F), SOLIDIFIES (HSDB).
How should Bromobenzene be stored?
CLP Annex VI assigns Bromobenzene the storage statement P403.
Nearby
Substances next to Bromobenzene
Keep going: substances starting with B, or search the whole database by name, CAS number, pictogram or signal word.