Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Acetylsalicylic acid(50-78-2)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Acetylsalicylic acid
Synonyms
2-(Acetyloxy)benzoic acid
Aspirin
o-Acetylsalicylic acid
CAS
50-78-2
Formula
C9H8O4
Molecular Weight
180.16
EINECS
200-064-1
RTECS
VO0700000
RTECS Class
Drug; Mutagen; Reproductive Effector; Human Data
Merck
13,856
Beilstein/Gmelin
779271
Beilstein Reference
4-10-00-00138

Physical and Chemical Properties

Appearance
Odorless white crystals or crystalline powder with a slightly bitter taste.
Solubility in water
3.3 g/L
Boiling Point
140
Vapor Pressure
.00003
Density
1.39 g/cm3
pKa/pKb
3.49 (pKa)
Partition Coefficient
1.19
Heat Of Vaporization
106.40 kJ/mol
Heat Of Combustion
-3927 kJ/mol
Usage
Medication.
Refractive Index
1.5623 (20 C)

First Aid Measures

Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.

Hazards Identification

Inhalation
May cause respiratory tract irritation. Can produce anaphylactic shock with even small doses.
Skin
May cause skin irritation. Low hazard for usual industrial handling. Chronic ingestion may result in salicylism which is characterized by nausea, vomiting, gastrointestinal ulcers, and hemorrhagic strokes.
Eyes
May cause eye irritation and possible burns.
Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Inhibits platelet aggregation affecting bleeding
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 22 36/37
EC Safety Phrase
S 26 36/37/39
UN (DOT)
2811

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Exposure Effects
Chronic ingestion may result in salicylism which is characterized by nausea, vomiting, gastrointestinal ulcers, and hemorrhagic strokes.
Exposure limit(s)
OEL-UNITED KINGDOM:TWA 5 mg/m3
Poison Class
3

Fire Fighting Measures

Flash Point
250
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Fire Potential
This chemical is combustible.

Accidental Release Measures

Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

Stability and Reactivity

Stability
Stable under normal shipping and handling conditions.
Incompatibilities
Strong alkali, hydrolyzes in moist air, decomposes in hot water.
Decomposition
Carbon monoxide, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2811
Hazard Class
6.1
Packing Group
I; II; III
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