Substance profile
Tetrachlorophthalic anhydride
Tetrachlorophthalic anhydride is prisms, needles from sublimation and is odorless.
01 · Identification
What Tetrachlorophthalic anhydride is
Tetrachlorophthalic anhydride is prisms, needles from sublimation and is odorless. Its molecular formula is C8Cl4O3 and its molecular weight is 285.9 g/mol. It boils at 371 °C, melts at 255 °C, is slightly soluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Tetrachlorophthalic anhydride identifiers and molecular data
Tetrachlorophthalic anhydride CAS number and EC number
Tetrachlorophthalic anhydride molecular formula and molecular weight
03 · GHS classification
Tetrachlorophthalic anhydride hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Tetrachlorophthalic anhydride pictograms and signal word
Tetrachlorophthalic anhydride 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 |
| 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.
Tetrachlorophthalic anhydride 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. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Tetrachlorophthalic…. 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 Tetrachlorophthalic…
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 Tetrachlorophthalic… 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
Tetrachlorophthalic anhydride precautionary statements
CLP Annex VI assigns 11 precautionary statements to Tetrachlorophthalic…. 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
Tetrachlorophthalic anhydride 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 | тетрахлорофталов анхидрид |
| Spanish español | Anhídrido tetracloroftálico |
| Czech čeština | tetrachlorftalanhydrid |
| Danish dansk | tetrachlorphthalsyreanhydrid |
| German Deutsch | Tetrachlorphthalsäureanhydrid |
| Estonian eesti | tetrakloroftaalanhüdriid |
| Greek ελληνικά | τετραχλωροφθαλικός ανυδρίτης |
| English English | tetrachlorophthalic anhydride |
| French français | anhydride tétrachlorophtalique |
| Croatian hrvatski | anhidrid tetraklorftalne kiseline |
| Italian italiano | anidride tetracloroftalica |
| Latvian latviešu | tetrahlorftalskābes anhidrīds |
| Lithuanian lietuvių | tetrachlorftalio anhidridas |
| Hungarian magyar | tetraklórftálsav-anhidrid |
| Maltese Malti | anidride tetrakloroftaliku |
| Dutch Nederlands | tetrachloorftaalzuuranhydride |
| Polish polski | bezwodnik tetrachloroftalowy |
| Portuguese português | anidrido tetracloroftálico |
| Romanian română | anhidridă tetracloroftalică |
| Slovak slovenčina | tetrachlórftalanhydrid |
| Slovenian slovenščina | anhidrid tetrakloroftalne kisline |
| Finnish suomi | tetraklooriftaalihappoanhydridi |
| Swedish svenska | tetraklorftalsyraanhydrid |
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
Tetrachlorophthalic anhydride GHS label elements
Everything CLP Annex VI fixes for Tetrachlorophthalic…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Tetrachlorophthalic anhydride
- Causes serious eye damage.
- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause an allergic skin reaction.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- 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.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Tetrachlorophthalic… in the GHS label constructor →
07 · Health hazards
Tetrachlorophthalic anhydride health hazards and exposure limits
Tetrachlorophthalic anhydride hazard summary
Occupational asthma reported in workers manufacturing epoxy resins and plastics; [Malo] Produces the acid on reaction with water; A skin, eye, and respiratory tract irritant; May cause skin sensitization and asthma; [ICSC] Causes kidney and blood changes in gavage studies of rats and lung changes in inhalation studies of rats; [EPA ChAMP] See ACID ANHYDRIDES.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Tetrachlorophthalic anhydride 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.
Tetrachlorophthalic anhydride boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 371 °C (699.8 °F) | HSDB | |
| 371.11 °C (700 °F) | sublimes, at 760 mmHg | CAMEO |
Tetrachlorophthalic anhydride melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 255 °C (491 °F) | ICSC | |
| 255.75 °C (492.4 °F) | range, midpoint shown | HSDB | |
| 255.83 °C (492.5 °F) | range, midpoint shown | CAMEO |
Tetrachlorophthalic anhydride density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.49 g/cm³ | at 275 °C | CAMEO |
Tetrachlorophthalic anhydride solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SLIGHTLY SOLUBLE IN ETHER | HSDB | |
| SLIGHTLY SOL IN WATER | HSDB | ||
| less than 1 mg/mL at 70 °F (NTP, 1992) | at 21.11 °C | CAMEO |
Tetrachlorophthalic anhydride flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 362 °C (683.6 °F) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Tetrachlorophthalic anhydride storage and handling
Tetrachlorophthalic anhydride safe storage
Dry. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Tetrachlorophthalic anhydride reactivity
TETRACHLOROPHTHALIC ANHYDRIDE reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tetrachlorophthalic… in the storage compatibility matrix →
10 · Questions
Tetrachlorophthalic anhydride — frequently asked questions
What is the CAS number of Tetrachlorophthalic anhydride?
The CAS number of Tetrachlorophthalic anhydride is 117-08-8. Its EC number is 204-171-4.
What is the chemical formula of Tetrachlorophthalic anhydride?
The molecular formula of Tetrachlorophthalic anhydride is C8Cl4O3 and its molecular weight is 285.9 g/mol.
What does a Tetrachlorophthalic anhydride label have to show?
Under CLP Annex VI the label for Tetrachlorophthalic anhydride carries the pictograms Health hazard, Corrosion and Environment and the signal word is Danger.
Is Tetrachlorophthalic anhydride flammable?
CLP Annex VI assigns Tetrachlorophthalic anhydride 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. The flash point reported for it is 362 °C (683.6 °F) (ICSC).
Is Tetrachlorophthalic anhydride a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Tetrachlorophthalic anhydride. 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 Tetrachlorophthalic anhydride?
The boiling point reported for Tetrachlorophthalic anhydride is 371 °C (699.8 °F) (HSDB).
What is the melting point of Tetrachlorophthalic anhydride?
The melting point reported for Tetrachlorophthalic anhydride is 255 °C (491 °F) (ICSC).
Nearby
Substances next to Tetrachlorophthalic…
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