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) |
FormulaCCl3COOH |
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 |
Measurement Methods
OSHA PV2017
See: NMAM or OSHA Methods |
Physical Description Colorless to white, crystalline solid with a sharp, pungent odor. |
MW: 163.4 |
BP: 388°F |
MLT: 136°F |
Sol: Miscible |
VP(124°F): 1 mmHg |
IP: ? |
Sp.Gr: 1.62 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| 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 |
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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 See ICSC CARD: 0586
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