| Product Identification | Back 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 Properties | Back 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 Measures | Back 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 Storage | Back 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 Identification | Back 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 Protection | Back 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 Measures | Back 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. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Incompatibilities】
Bases, oxidizing agents, reducing agents. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, carbon dioxide. |
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