Substance profile
Propylbenzene
Propylbenzene is a colorless liquid.
01 · Identification
What Propylbenzene is
Propylbenzene is a colorless liquid. Its molecular formula is C9H12 and its molecular weight is 120.19 g/mol. It boils at 159 °C, melts at -99.5 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
02 · Identifiers
Propylbenzene identifiers and molecular data
Propylbenzene CAS number and EC number
Propylbenzene molecular formula and molecular weight
03 · GHS classification
Propylbenzene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Propylbenzene pictograms and signal word
Propylbenzene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Specific target organ toxicity - single exposure GHS chapter 3.8 | Category 3 | H335 | GHS07 |
| Aspiration hazard GHS chapter 3.10 | Category 1 | H304 | GHS08 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
Propylbenzene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H304 | May be fatal if swallowed and enters airways. |
| H335 | May cause respiratory irritation. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Propylbenzene. 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 Propylbenzene
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 Propylbenzene 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
Propylbenzene precautionary statements
CLP Annex VI assigns 8 precautionary statements to Propylbenzene. 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.
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
Propylbenzene 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 | Пропилбензен |
| Spanish español | Propilbenceno |
| Czech čeština | propylbenzen |
| Danish dansk | propylbenzen |
| German Deutsch | Propylbenzol |
| Estonian eesti | propüülbenseen |
| Greek ελληνικά | προπυλοβενζόλιο |
| English English | Propylbenzene |
| French français | Propylbenzène |
| Croatian hrvatski | propilbenzen |
| Italian italiano | propilbenzene |
| Latvian latviešu | propilbenzols |
| Lithuanian lietuvių | propilbenzenas |
| Hungarian magyar | Propilbenzol |
| Maltese Malti | Propilbenżen |
| Dutch Nederlands | propylbenzeen |
| Polish polski | propylobenzen |
| Portuguese português | propilbenzeno |
| Romanian română | propilbenzen |
| Slovak slovenčina | propylbenzén |
| Slovenian slovenščina | propilbenzen |
| Finnish suomi | propyylibentseeni |
| Swedish svenska | propylbensen |
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
Propylbenzene GHS label elements
Everything CLP Annex VI fixes for Propylbenzene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Propylbenzene
- Flammable liquid and vapour.
- May be fatal if swallowed and enters airways.
- May cause respiratory 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.
- Avoid release to the environment.
- 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 Propylbenzene in the GHS label constructor →
07 · Health hazards
Propylbenzene health hazards and exposure limits
Propylbenzene hazard summary
In animal studies, it acts as a CNS depressant and general anesthetic. [HSDB] If left on clothes, can cause reddening of skin; [CHRIS]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Propylbenzene 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.
Propylbenzene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 159.2 °C (318.6 °F) | HSDB | |
| 159 °C (318.2 °F) | at 760 mmHg | CAMEO | |
| 159.24 °C (318.6 °F) | at 760 mmHg | DOE PAC |
Propylbenzene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -99.5 °C (-147.1 °F) | HSDB | |
| -99 °C (-146.2 °F) | CAMEO | ||
| -99.6 °C (-147.3 °F) | DOE PAC |
Propylbenzene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.862 g/cm³ | CAMEO | |
| 0.862 g/cm³ | at 20 °C | HSDB | |
| 0.8593 g/cm³ | at 25 °C | DOE PAC |
Propylbenzene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Very slightly sol in water (0.06 g/l); sol in alcohol, ether | HSDB | |
| Miscible in ethanol, ethyl ether, and acetone | HSDB | ||
| Water solubility of 23.4 mg/l at 25 °C. | at 25 °C | HSDB |
Propylbenzene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 7.52 mmHg | CAMEO | |
| 3.42 mmHg | at 25 °C | HSDB | |
| 7.5 mmHg | at 38 °C | DOE PAC |
Propylbenzene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 30 °C (86 °F) | HSDB | |
| 47.78 °C (118 °F) | CAMEO |
Propylbenzene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 450 °C (842 °F) | HSDB |
Propylbenzene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 0.8 % by volume | HSDB |
Propylbenzene upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 6 % by volume | HSDB |
Propylbenzene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 4.14 (air = 1) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Propylbenzene 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.
Propylbenzene fire potential
Flammable, moderate fire risk.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Propylbenzene storage and handling
Propylbenzene incompatible materials
... Can react with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
Propylbenzene reactivity
Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as N-PROPYL BENZENE, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Propylbenzene in the storage compatibility matrix →
11 · Questions
Propylbenzene — frequently asked questions
What is the CAS number of Propylbenzene?
The CAS number of Propylbenzene is 103-65-1. Its EC number is 203-132-9.
What is the chemical formula of Propylbenzene?
The molecular formula of Propylbenzene is C9H12 and its molecular weight is 120.19 g/mol.
What does a Propylbenzene label have to show?
Under CLP Annex VI the label for Propylbenzene carries the pictograms Flame, Health hazard, Exclamation mark and Environment and the signal word is Danger.
Is Propylbenzene flammable?
Yes. CLP Annex VI assigns Propylbenzene H226 — flammable liquid and vapour. The flash point reported for it is 30 °C (86 °F) (HSDB).
Is Propylbenzene a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Propylbenzene. 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 Propylbenzene?
The boiling point reported for Propylbenzene is 159.2 °C (318.6 °F) (HSDB).
What is the melting point of Propylbenzene?
The melting point reported for Propylbenzene is -99.5 °C (-147.1 °F) (HSDB).
How should Propylbenzene be stored?
CLP Annex VI assigns Propylbenzene the storage statement P403.
Nearby
Substances next to Propylbenzene
Keep going: substances starting with P, or search the whole database by name, CAS number, pictogram or signal word.