Trimellitic anhydride
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CAS
552-30-7
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C9H4O5
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RTECS
DC2050000
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Synonyms & Trade Names
1,2,4-Benzenetricarboxylic anhydride; 4-Carboxyphthalic anhydride; TMA; TMAN; Trimellic acid anhydride [Note: TMA is also a synonym for Trimethylamine.]
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 0.005 ppm (0.04 mg/m3) Should be handled in the workplace as an extremely toxic substance.
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
1 ppm = 7.86 mg/m3
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Physical Description
Colorless solid.
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MW: 192.1
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BP: ?
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MLT: 322°F
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Sol: ?
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VP: 0.000004 mmHg
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IP: ?
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Sp.Gr: ?
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Fl.P: NA
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UEL: NA
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LEL: NA
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Combustible Solid
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Incompatibilities & Reactivities
None reported
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Measurement Methods
NIOSH 5036; OSHA 98
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, nose, respiratory system; pulmonary edema, respiratory sensitization; rhinitis, asthma, cough, wheezing, dyspnea (breathing difficulty), malaise (vague feeling of discomfort), fever, muscle aches, sneezing
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Target Organs
Eyes, skin, respiratory system
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See also: INTRODUCTION
See ICSC CARD: 0345 |
