Acetylsalicylic acid |
Synonyms & Trade Names o-Acetoxybenzoic acid, 2-Acetoxybenzoic acid, Aspirin |
CAS No. 50-78-2 |
RTECS No. VO0700000 |
DOT ID & Guide |
FormulaCH3COOC6H4COOH |
Conversion |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 5 mg/m3
OSHA PEL†: none |
Measurement Methods
NIOSH 0500
See: NMAM or OSHA Methods |
Physical Description Odorless, colorless to white, crystal-line powder. [aspirin] [Note: Develops the vinegar-like odor of acetic acid on contact with moisture.] |
MW: 180.2 |
BP: 284°F (Decomposes) |
MLT: 275°F |
Sol(77°F): 0.3% |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 1.35 |
Fl.P: NA |
UEL: NA |
LEL: NA |
|
MEC: 40 g/m3 |
| Combustible Powder; explosion hazard if dispersed in air. |
Incompatibilities & Reactivities Solutions of alkali hydroxides or carbonates, strong oxidizers, moisture [Note: Slowly hydrolyzes in moist air to salicyclic & acetic acids.] |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, upper respiratory system; increased blood clotting time; nausea, vomiting; liver, kidney injury |
Target Organs Eyes, skin, respiratory system, blood, liver, kidneys |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: No recommendation
Change: Daily
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0822
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