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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Stearic acid(57-11-4)

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
Stearic acid
Synonyms
1-Heptadecanecarboxylic acid
Cetylacetic acid
Hystrene
Neo-Fat 18
Octadecanoic acid
Stearophanic acid
CAS
57-11-4
Formula
C18H36O2
Molecular Weight
284.48
EINECS
200-313-4
RTECS
WI2800000
RTECS Class
Tumorigen; Mutagen; Primary Irritant
Merck
12,8959
Beilstein/Gmelin
608585
Beilstein Reference
4-02-00-01206

Physical and Chemical Properties

Appearance
White or slightly yellow, crystals or powder, with a slight tallow-like odor.
Solubility in water
Insoluble
Melting Point
67
Boiling Point
361
Vapor Pressure
9E-6 (25 C)
Density
1.017 g/cm3 (17 C)
pKa/pKb
4.78 (pKa)
Partition Coefficient
8.23
Heat Of Vaporization
63.8 kJ/mol
Heat Of Combustion
-11326 kJ/mol
Usage
Chemical intermediate for metallic soaps & greases, household soap products, synthetic rubber vulcanization activators, alkylated & epoxy resins for surface coatings, synthetic rubber polymerization emulsifier, component of cosmetic formulations, pharmaceutical creams, of candles, lubricant in pharmaceutical tablet formulations, release agent in baked goods & confectioneries.
Saturation Concentration
Very low at 25 C
Vapor Density
9.8
Odor threshold
20 ppm
Refractive Index
1.4299 (20 C)

First Aid Measures

Ingestion
Get medical aid. Wash mouth out with water.
Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.

Hazards Identification

Ingestion
Low hazard for usual industrial handling.
Inhalation
May cause respiratory tract irritation.
Skin
May cause skin irritation.
Eyes
May cause eye irritation.
Hazards
This chemical can heat spontaneously.
EC Risk Phrase
R 36/37/38
EC Safety Phrase
S 26 36

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear a chemical apron.
Respirators
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Exposure limit(s)
TLV (as stearates): ppm; 10 mg/m3 ACGIH 1996).
Poison Class
-

Fire Fighting Measures

Flash Point
162
Autoignition
395
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Upper exp. limit
4.9
Lower exp. limit
.4
Fire Potential
This chemical is combustible.

Accidental Release Measures

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

Stability and Reactivity

Disposal Code
3
Incompatibilities
Bases, oxidizing agents, reducing agents.
Stability
Stable under normal temperatures and pressures.
Decomposition
Carbon monoxide, carbon dioxide.

Transport Information

HS Code
3823 11 00
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