Substance profile
DIBENZ(a,h)ANTHRACENE
DIBENZ(a,h)ANTHRACENE is colorless plates or leaflets from acetic acid.
01 · Identification
What DIBENZ(a,h)ANTHRACENE is
DIBENZ(a,h)ANTHRACENE is colorless plates or leaflets from acetic acid. Its molecular formula is C22H14 and its molecular weight is 278.3 g/mol. It boils at 524 °C, melts at 269 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
DIBENZ(a,h)ANTHRACENE identifiers and molecular data
DIBENZ(a,h)ANTHRACENE CAS number and EC number
DIBENZ(a,h)ANTHRACENE molecular formula and molecular weight
Other names for DIBENZ(a,h)ANTHRACENE
- dibenz[a,h]anthracene
03 · GHS classification
DIBENZ(a,h)ANTHRACENE hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
DIBENZ(a,h)ANTHRACENE pictograms and signal word
DIBENZ(a,h)ANTHRACENE hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | GHS08 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 1 | H410 | GHS09 |
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.
DIBENZ(a,h)ANTHRACENE hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to DIBENZ(a,h)ANTHRACENE. 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 DIBENZ(a,h)ANTHRACENE
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 DIBENZ(a,h)ANTHRACENE 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
DIBENZ(a,h)ANTHRACENE precautionary statements
CLP Annex VI assigns 7 precautionary statements to DIBENZ(a,h)ANTHRACENE. 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
DIBENZ(a,h)ANTHRACENE 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 | дибенз[ a , h ]антрацен |
| Spanish español | Dibenz[ a , h ]antraceno |
| Czech čeština | dibenzo[ a, h ]anthracen |
| Danish dansk | dibenzo[ a, h ]anthracen |
| German Deutsch | Dibenzo[ a , h ]anthracen |
| Estonian eesti | dibens[ a , h ]antratseen |
| Greek ελληνικά | διβενζο[ a , h ]ανθρακένιο |
| English English | dibenz[ a , h ]anthracene |
| French français | dibenz[ a , h ]anthracène |
| Croatian hrvatski | dibenz[ a , h ]antracen |
| Italian italiano | dibenzo[ a , h ]antracene |
| Latvian latviešu | dibenz[ a , h ]antracēns |
| Lithuanian lietuvių | dibenz[ a , h ]antracenas |
| Hungarian magyar | dibenz[ a , h ]antracén |
| Maltese Malti | dibenż[ a , h ]antraċen |
| Dutch Nederlands | dibenzo[ a , h ]antraceen |
| Polish polski | dibenzo[a, h]antracen |
| Portuguese português | dibenzo[ a , h ]antraceno |
| Romanian română | dibenzo[ a , h ]antracen |
| Slovak slovenčina | dibenzo[ a, h ]antracén |
| Slovenian slovenščina | dibenz[ a , h ]antracen |
| Finnish suomi | dibentso[ a, h ]antraseeni |
| Swedish svenska | dibens[ a , h ]antracen |
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
DIBENZ(a,h)ANTHRACENE GHS label elements
Everything CLP Annex VI fixes for DIBENZ(a,h)ANTHRACENE, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
DIBENZ(a,h)ANTHRACENE
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open DIBENZ(a,h)ANTHRACENE in the GHS label constructor →
07 · Health hazards
DIBENZ(a,h)ANTHRACENE health hazards and exposure limits
DIBENZ(a,h)ANTHRACENE hazard summary
May cause skin photosensitization; A probable human carcinogen; Can be absorbed through skin; [ICSC] Evidence of carcinogenicity, mutagenicity, developmental toxicity, and immunosuppression in experimental animals; Emergency treatment: Polynuclear aromatic hydrocarbons; Acute toxicity of PAHs is low; May cause photosensitivity; May cause cancer after chronic exposure; [HSDB] Causes decreased humoral immune response and changes in hepatic microsomal mixed oxidase in oral toxic-dose studies of mice; [RTECS] May cause skin and eye irritation; [Cerilliant MSDS] See POLYCYCLIC AROMATIC HYDROCARBONS.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
DIBENZ(a,h)ANTHRACENE carcinogenicity classification
No data are available in humans. Sufficient evidence of carcinogenicity in animals. OVERALL EVALUATION: Group 2A: The agent is probably carcinogenic to humans.
Source: Hazardous Substances Data Bank (HSDB)
Dibenz(a,h)anthracene: reasonably anticipated to be a human carcinogen. /Polycyclic Aromatic Hydrocarbons/
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.
DIBENZ(a,h)ANTHRACENE occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| IDLH | NIOSH considers coal tar pitch volatiles to be potential occupational carcinogens. /Coal tar pitch volatiles/ | Hazardous Substances Data Bank (HSDB) |
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
DIBENZ(a,h)ANTHRACENE 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.
DIBENZ(a,h)ANTHRACENE boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 524 °C (975.2 °F) | HSDB | |
| 523.89 °C (975 °F) | at 760 mmHg | CAMEO |
DIBENZ(a,h)ANTHRACENE melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 269 °C (516.2 °F) | HSDB | |
| 214 °C (417.2 °F) | HSDB | ||
| 267 °C (512.6 °F) | ICSC |
DIBENZ(a,h)ANTHRACENE density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.282 g/cm³ | HSDB | |
| 1.28 g/cm³ | HSDB |
DIBENZ(a,h)ANTHRACENE solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | In water, 0.00166 mg/L at 24-25 °C (average of 5 measured values ranging from 0.0005 to 0.00249) | HSDB | |
| In water, 2.49X10-3 mg/L at 25 °C | at 25 °C | HSDB | |
| In water, 0.000627 mg/L at 25 °C | at 25 °C | HSDB |
DIBENZ(a,h)ANTHRACENE vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1e-10 mmHg | at 20 °C, estimated | CAMEO |
| 9.55e-10 mmHg | at 25 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
DIBENZ(a,h)ANTHRACENE 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.
DIBENZ(a,h)ANTHRACENE fire potential
This chemical is a combustible solid.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
DIBENZ(a,h)ANTHRACENE storage and handling
DIBENZ(a,h)ANTHRACENE safe storage
Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
DIBENZ(a,h)ANTHRACENE storage conditions
Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects.[Sigma-Aldrich; Safety Data Sheet for Dibenz
Source: Hazardous Substances Data Bank (HSDB)
DIBENZ(a,h)ANTHRACENE incompatible materials
Incompatible materials: Strong oxidizing agents.[Sigma-Aldrich; Safety Data Sheet for Dibenz
Source: Hazardous Substances Data Bank (HSDB)
DIBENZ(a,h)ANTHRACENE reactivity
DIBENZ[A,H]ANTHRACENE is incompatible with strong oxidizing agents. Is oxidized by chromic acid and by osmium tetraoxide (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check DIBENZ(a,h)ANTHRACENE in the storage compatibility matrix →
11 · Questions
DIBENZ(a,h)ANTHRACENE — frequently asked questions
What is the CAS number of DIBENZ(a,h)ANTHRACENE?
The CAS number of DIBENZ(a,h)ANTHRACENE is 53-70-3. Its EC number is 200-181-8.
What is the chemical formula of DIBENZ(a,h)ANTHRACENE?
The molecular formula of DIBENZ(a,h)ANTHRACENE is C22H14 and its molecular weight is 278.3 g/mol.
What does a DIBENZ(a,h)ANTHRACENE label have to show?
Under CLP Annex VI the label for DIBENZ(a,h)ANTHRACENE carries the pictograms Health hazard and Environment and the signal word is Danger.
Is DIBENZ(a,h)ANTHRACENE flammable?
CLP Annex VI assigns DIBENZ(a,h)ANTHRACENE no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is DIBENZ(a,h)ANTHRACENE a carcinogen?
Yes. CLP Annex VI classifies DIBENZ(a,h)ANTHRACENE 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 boiling point of DIBENZ(a,h)ANTHRACENE?
The boiling point reported for DIBENZ(a,h)ANTHRACENE is 524 °C (975.2 °F) (HSDB).
What is the melting point of DIBENZ(a,h)ANTHRACENE?
The melting point reported for DIBENZ(a,h)ANTHRACENE is 269 °C (516.2 °F) (HSDB).
How should DIBENZ(a,h)ANTHRACENE be stored?
Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects.[Sigma-Aldrich; Safety Data Sheet for Dibenz (Hazardous Substances Data Bank (HSDB))
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