Substance profile
Benzene-1,2:4,5-tetracarboxylic dianhydride
Benzene-1,2:4,5-tetracarboxylic dianhydride is a white powder.
01 · Identification
What Benzene-1,2:4,5-tetracarboxyli… is
Benzene-1,2:4,5-tetracarboxylic dianhydride is a white powder. Its molecular formula is C10H2O6 and its molecular weight is 218.12 g/mol. It boils at 399 °C, melts at 286 °C, is soluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Benzene-1,2:4,5-tetracarboxyli… identifiers and molecular data
Benzene-1,2:4,5-tetracarboxyli… CAS number and EC number
Benzene-1,2:4,5-tetracarboxyli… molecular formula and molecular weight
Other names for Benzene-1,2:4,5-tetracarboxyli…
- pyromellitic dianhydride
03 · GHS classification
Benzene-1,2:4,5-tetracarboxyli… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Benzene-1,2:4,5-tetracarboxyli… pictograms and signal word
Benzene-1,2:4,5-tetracarboxyli… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 1 | H318 | GHS05 |
| Respiratory sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H334 | GHS08 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | 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.
Benzene-1,2:4,5-tetracarboxyli… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H318 | Causes serious eye damage. |
| H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
| H317 | May cause an allergic skin reaction. |
This page lists only the codes assigned to Benzene-1,2:4,5-tetracarbo…. 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 Benzene-1,2:4,5-tetracarbo…
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 Benzene-1,2:4,5-tetrac… 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
Benzene-1,2:4,5-tetracarboxyli… precautionary statements
CLP Annex VI assigns 8 precautionary statements to Benzene-1,2:4,5-tetracarbo…. 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
Benzene-1,2:4,5-tetracarboxyli… 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 | бензен-1,2:4,5-тетракарбоксилен дианхидрид пиромелитов дианхидрид |
| Spanish español | Dianhídrido benceno-1,2:4,5-tetracarboxílico dianhídrido piromelítico |
| Czech čeština | benzen-1,2:4,5-tetrakarboxdianhydrid dianhydrid benzen-1,2:4,5-tetrakarboxylové kyseliny |
| Danish dansk | benzen-1,2:4,5-tetracarboxylsyredianhydrid 1,2,4,5-benzentetracarboxylsyredianhydrid |
| German Deutsch | 1,2,4,5-Benzoltetracarbonsäuredianhydrid Pyromellitsäuredianhydrid |
| Estonian eesti | benseen-1,2:4,5-tetrakarboksüülhappe dianhüdriid püromelliithappe dianhüdriid |
| Greek ελληνικά | βενζολο-1,2:4,5-τετρακαρβοξυλικός διανυδρίτης πυρομελλιτικός διανυδρίτης |
| English English | benzene-1,2:4,5-tetracarboxylic dianhydride pyromellitic dianhydride |
| French français | dianhydride benzène-1,2:4,5-tétracarboxylique dianhydride pyromellitique |
| Croatian hrvatski | dianhidrid benzen-1,2:4,5-tetrakarboksilne kiseline dianhidrid piromelitne kiseline |
| Italian italiano | dianidride benzen-1,2:4,5-tetracarbossilica dianidride dell'acido 1,2,4,5-benzen tetracarbossilico dianidride piromellitica |
| Latvian latviešu | benzol-1,2:4,5-tetrakarbonskābes dianhidrīds piromelitskābes dianhidrīds |
| Lithuanian lietuvių | benzen-1,2:4,5-tetrakarboksirūgšties dianhidridas piromelito rūgšties dianhidridas |
| Hungarian magyar | benzol-1,2:4,5-tetrakarbonsav-dianhidrid piromellit-dianhidrid |
| Maltese Malti | dianidride tal-benżen-1,2,4,5-tetrakarbossiliku dianidride piromellitiku |
| Dutch Nederlands | benzeen-1,2:4,5-tetracarbonzuurdianhydride 1,2,4,5-benzeentetracarbonzuurdianhydridepyromellietzuurdianhydride |
| Polish polski | dibezwodnik 1,2:4,5-benzenotetrakarboksylowy dibezwodnik piromelitowy |
| Portuguese português | dianidrido benzeno-1,2:4,5-tetracarboxílico dianidrido piromelítico |
| Romanian română | dianhidrida acidului benzen-1,2:4,5-tetracarboxilic dianhidrida piromelitică |
| Slovak slovenčina | benzén-1,2:4,5-tetrakarboxdianhydrid 1,2:4,5-dianhydrid kyseliny benzén-1,2,4,5-tetrakarboxylovej |
| Slovenian slovenščina | dianhidrid benzen-1,2:4,5-tetrakarboksilne kisline dianhidrid piromelitne kisline |
| Finnish suomi | bentseeni-1,2:4,5-tetrakarboksyylihapon dianhydridi pyromelliitindianhydridi |
| Swedish svenska | bensen-1,2:4,5-tetrakarboxylsyradianhydrid pyromellitsyradianhydrid |
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
Benzene-1,2:4,5-tetracarboxyli… GHS label elements
Everything CLP Annex VI fixes for Benzene-1,2:4,5-tetracarbo…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Benzene-1,2:4,5-tetracarboxyli…
- Causes serious eye damage.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause an allergic skin reaction.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Contaminated work clothing should not be allowed out of the workplace.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF IN EYES:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention.
- If skin irritation or rash occurs:
- Remove contact lenses, if present and easy to do. Continue rinsing.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Benzene-1,2:4,5-tetracarbo… in the GHS label constructor →
07 · Health hazards
Benzene-1,2:4,5-tetracarboxyli… health hazards and exposure limits
Benzene-1,2:4,5-tetracarboxyli… hazard summary
A skin irritant; [Hawley] Produces the acid on reaction with water; A skin, eye, and respiratory tract irritant; Heavy exposure may cause pulmonary hemorrhage; May cause skin sensitization and asthma; [ICSC] A mild skin sensitizer in guinea pigs; Acute exposure produces CNS depression in animals; Changes in various enzyme activity (cholinesterase, ALT, AST, cytochrome oxidase, etc.) observed in female mice administered 4.4 and 8.8 mg/kg for six months; [HSDB] An irritant that may cause serious eye injury; May cause sensitization by skin contact and inhalation; [Alfa Aesar MSDS] See ACID ANHYDRIDES.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Benzene-1,2:4,5-tetracarboxyli… 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.
Benzene-1,2:4,5-tetracarboxyli… boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 398.5 °C (749.3 °F) | range, midpoint shown | HSDB |
Benzene-1,2:4,5-tetracarboxyli… melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 286 °C (546.8 °F) | HSDB | |
| 287 °C (548.6 °F) | ICSC |
Benzene-1,2:4,5-tetracarboxyli… density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.68 g/cm³ | HSDB | |
| 1.68 g/cm³ | at 25 °C | DOE PAC |
Benzene-1,2:4,5-tetracarboxyli… solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in some organic solvents | HSDB | |
| Solubility in water: reaction | ICSC | ||
| In water, 130 mg/L @ 25 °C | at 25 °C, Estimated | HSDB |
Benzene-1,2:4,5-tetracarboxyli… vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0000048 mmHg | at 25 °C | HSDB |
| 0.0000048 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Benzene-1,2:4,5-tetracarboxyli… storage and handling
Benzene-1,2:4,5-tetracarboxyli… safe storage
Dry. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Benzene-1,2:4,5-tetracarboxyli… storage conditions
Dry. Well closed.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Benzene-1,2:4,5-tetracarb… in the storage compatibility matrix →
10 · Questions
Benzene-1,2:4,5-tetracarboxyli… — frequently asked questions
What is the CAS number of Benzene-1,2:4,5-tetracarboxyli…?
The CAS number of Benzene-1,2:4,5-tetracarboxyli… is 89-32-7. Its EC number is 201-898-9.
What is the chemical formula of Benzene-1,2:4,5-tetracarboxyli…?
The molecular formula of Benzene-1,2:4,5-tetracarboxyli… is C10H2O6 and its molecular weight is 218.12 g/mol.
What does a Benzene-1,2:4,5-tetracarboxyli… label have to show?
Under CLP Annex VI the label for Benzene-1,2:4,5-tetracarboxyli… carries the pictograms Health hazard and Corrosion and the signal word is Danger.
Is Benzene-1,2:4,5-tetracarboxyli… flammable?
CLP Annex VI assigns Benzene-1,2:4,5-tetracarboxyli… 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 Benzene-1,2:4,5-tetracarboxyli… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Benzene-1,2:4,5-tetracarboxyli…. 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 Benzene-1,2:4,5-tetracarboxyli…?
The boiling point reported for Benzene-1,2:4,5-tetracarboxyli… is 398.5 °C (749.3 °F), range, midpoint shown (HSDB).
What is the melting point of Benzene-1,2:4,5-tetracarboxyli…?
The melting point reported for Benzene-1,2:4,5-tetracarboxyli… is 286 °C (546.8 °F) (HSDB).
How should Benzene-1,2:4,5-tetracarboxyli… be stored?
Dry. Well closed. (Hazardous Substances Data Bank (HSDB))
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