Acetylsalicyclic acid
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CAS
50-78-2
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CH3COOC6H4COOH
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RTECS
VO0700000
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Synonyms & Trade Names
o-Acetoxybenzoic acid, 2-Acetoxybenzoic acid, Aspirin
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 5 mg/m3
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
Odorless, colorless to white, crystal-line powder. [aspirin] [Note: Develops the vinegar-like odor of acetic acid on contact with moisture.]
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MW: 180.2
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BP: 284°F (Decomposes)
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MLT: 275°F
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Sol(77°F): 0.3%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 1.35
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Fl.P: NA
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UEL: NA
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LEL: NA
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MEC: 40 g/m3
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Combustible Powder; explosion hazard if dispersed in air.
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Incompatibilities & Reactivities
Solutions of alkali hydroxides or carbonates, strong oxidizers, moisture [Note: Slowly hydrolyzes in moist air to salicyclic & acetic acids.]
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Measurement Methods
NIOSH 0500
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: No recommendation
Change: Daily
Provide: Eyewash, Quick drench
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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, upper respiratory system; increased blood clotting time; nausea, vomiting; liver, kidney injury
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Target Organs
Cancer Site
Eyes, skin, respiratory system, blood, liver, kidneys
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See also: INTRODUCTION
See ICSC CARD: 0822 |
