CDC - NIOSH Pocket Guide to Chemical Hazards - Trimellitic
CAS No. 552-30-7 RTECS No. DC2050000 DOT ID & Guide Formula CHO Conversion 1 ppm = 7.86 mg/m 3 IDLH N.D. See: IDLH INDEX Exposure Limits NIOSH REL TWA 0.005 ppm (0.04 mg/m 3) Should be handled in the workplace as an extremely toxic substance. OSHA PEL none See Appendix G Measurement Methods NIOSH 5036; OSHA 98 See: NMAM or OSHA Methods
TRIMELLITIC ANHYDRIDE | Occupational Safety and Health
TRIMELLITIC ANHYDRIDE Label abbreviations descriptions TRIMELLITIC ANHYDRIDE * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details. Bulk Method Last Updated Date : 01/22/2025
System of Registries | US EPA
Trimellitic anhydride Substance Details Internal Tracking Number: 53306 Substance Type: Chemical Substance Systematic Name: 5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo- CAS Number: 552-30-7 EPA Registry Name: Trimellitic anhydride Molecular Weight: 192.13 Molecular Formula: C9H4O5 Additional Metadata
Substance Information - ECHA - Europa
According to the harmonised classification and labelling (CLP00) approved by the European Union, this substance causes serious eye damage, may cause an allergic skin reaction, may cause allergy or asthma symptoms or breathing difficulties if inhaled and may cause respiratory irritation. About this substance
TRIMELLITIC ANHYDRIDE - ACGIH
trimellitic anhydride CAS number: 552-30-7 Synonyms: Anhydrotrimellitic acid; 1,2,4-Benzenetricarboxylic anhydride; 1,2,4-Benzene-tricarboxylic acid 1,2-anhydride; Benzene-1,2,4-tricarboxylic acid 1,2-anhydride; 4-Carboxyphthalic anhydride; 1,3-Dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid anhydride; TMA; TMAN; Trimellitic acid anhydride
- Where can I find information about trimellitic anhydride (CAS 552-30-7)?
- TAIYUAN RHF CO.,LTD. Trimellitic Anhydride (CAS 552-30-7) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.
- What is trimellitic anhydride used for?
- Trimellitic Anhydride is mainly used as raw material for polyester resin,polyimide resin,plasticizer TOTM ,and also be used for producing heatproof & insulating,adhesive,surfactant, paint,synthesize dye materials etc. Trimellitic anhydride is used as an embossing agent for vinyl flooring and as a curing agent for epoxy resins.
- Is trimellitic anhydride toxic?
- Moisture sensitive. TWA: 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance. Trimellitic anhydride is a white powder or flakes. It is the anhydride of trimellitic acid (1,2,4-benzenetricarboxylic acid). It is soluble in water, ethanol, acetone and other general organic solvents.
- What happens if trimellitic anhydride reacts with water?
- Crystals or off-white flakes. TRIMELLITIC ANHYDRIDE (552-30-7) 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.
- What is trimellitic anhydride (tman)?
- Trimellitic anhydride (TMAN) causes both respiratory irritation and immunologic respiratory disease. 3-Xylene is carbonylated with carbon monoxide in the presence of boron trifluoride and hydrogen fluoride to form 2,4-dimethylbenzaldehyde. 2,4-Dimethylbenzaldehyde is decomplexed from the acids, purified, and oxidized to trimellitic acid.
- Where can I find information on 552-30-7?
- J & K SCIENTIFIC LTD. TAIYUAN RHF CO.,LTD. ChemicalBook provide information on the 552-30-7: structure, uses, msds, molecular formula, cas, and suppliers.
