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Trichloroacetic acid

Synonyms & Trade Names
TCA, Trichloroethanoic acid
CAS No.
76-03-9
RTECS No.
AJ7875000
DOT ID & Guide
1839 153(solid)
2564 153(solution)
Formula
CCl₃COOH
Conversion
1 ppm = 6.68 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 1 ppm (7 mg/m3)
OSHA PEL
none See Appendix G
Measurement Methods
OSHA PV2017
See: NMAM or OSHA Methods
Physical Description
Colorless to white, crystalline solid with a sharp, pungent odor.
Molecular Weight
163.4
Boiling Point
388°F
Melting Point
136°F
Solubility
Miscible
Vapor Pressure
(124°F): 1 mmHg
Ionization Potential
?
Specific Gravity
1.62
Flash Point
NA
Upper Exposive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
Moisture, iron, zinc, aluminum, strong oxidizers [Note: Decomposes on heating to form phosgene & hydrogen chloride. Corrosive to metals.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose, throat, respiratory system; cough, dyspnea (breathing difficulty), delayed pulmonary edema; eye, skin burns; dermatitis; salivation, vomiting, diarrhea
Target Organs
Eyes, skin, respiratory system, gastrointestinal tract
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet or contaminated
Change:Daily
Provide:Eyewash, Quick drench
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0586

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