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Stearic acid(57-11-4)

Stearic acid(57-11-4)
Product IdentificationBack to Contents
【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 PropertiesBack to Contents
【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 MeasuresBack to Contents
【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 StorageBack to Contents
【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 IdentificationBack to Contents
【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 ProtectionBack to Contents
【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 MeasuresBack to Contents
【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 MeasuresBack to Contents
【Small spills/leaks】

Vacuum or sweep up material and place into a suitable disposal container.
Stability and ReactivityBack to Contents
【Disposal Code】

3
【Incompatibilities】

Bases, oxidizing agents, reducing agents.
【Stability】

Stable under normal temperatures and pressures.
【Decomposition】

Carbon monoxide, carbon dioxide.
Transport InformationBack to Contents
【HS Code】

3823 11 00
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