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Toxicity data
Risk phrases
Safety phrases
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for it. General
Synonyms: benzene-1,2,4-tricarboxylic anhydride, anhydrotrimellitic acid,
1,2,4-benzenetricarboxylic acid 1,2-anhydride, TMAN,
1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid
Molecular formula: C9H4O5
CAS No: 552-30-7
EC No: 209-008-0
Physical data
Appearance: white crystalline powder
Melting point: 165 C
Boiling point: 240 C at 20 mm Hg
Vapour density:
Vapour pressure:
Specific gravity: 1.54
Flash point: 227 C
Explosion limits:
Autoignition temperature:
Stability
Stable. Moisture sensitive.
Toxicology
Skin, eye and respiratory irritant. May be harmful by ingestion,
inhalation or through skin contact. May act as a sensitizer.
Typical 8h-TWA 0.04 mg m-3
(The meaning of any toxicological abbreviations which
appear in this section is given
here.)
ORL-MUS LD50 2210 mg kg-1
(The meaning of any risk phrases which appear in this section is
given
here.)
R36 R37 R38 R42.
Transport information
Personal protection
Safety glasses, adequate ventilation.
(The meaning of any safety phrases which appear in this section
is given here.)
S22 S28.