- Octadecanoic acid
- Cetylacetic acid
- 1-Heptadecanecarboxylic acid
- Neo-Fat 18
- Stearophanic acid
White or slightly yellow, crystals or powder, with a slight tallow-like odor.
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.
Registry Numbers and Inventories.
S 26 36
Tumorigen; Mutagen; Primary Irritant
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Decomposition point, °C
Vapor pressure, mmHg
9E-6 (25 C)
Vapor density (air=1)
Very low at 25 C
Odor Threshold Odor threshold 20 ppm
1.017 g/cm3 (17 C)
Solubility in water
176.50 cp (160 C)
1.4299 (20 C)
Partition coefficient, pKow
Heat of fusion
Heat of vaporization
Heat of combustion
Hazards and Protection.
Store in a cool, dry place. Store in a tightly closed container.
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Eyes: Wear chemical goggles. Skin: Wear appropriate gloves to prevent skin exposure. Clothing: Wear a chemical apron.
A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Vacuum or sweep up material and place into a suitable disposal container.
Stable under normal temperatures and pressures.
Bases, oxidizing agents, reducing agents.
Carbon monoxide, carbon dioxide.
Upper exp. limit, %
Lower exp. limit, %
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.
This chemical is combustible.
This chemical can heat spontaneously.
TLV (as stearates): ppm; 10 mg/m3 ACGIH 1996).
Low hazard for usual industrial handling.
May cause respiratory tract irritation.
May cause skin irritation.
May cause eye irritation.
Get medical aid. Wash mouth out with water.
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
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.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
3823 11 00
IMO Chemical Code
IMO Pollution Category