5281

Octadecanoic acid is a C18 straight-chain saturated fatty acid component of many animal and vegetable lipids. As well as in the diet, it is used in hardening soaps, softening plastics and in making cosmetics, candles and plastics. It has a role as a plant metabolite, a human metabolite, a Daphnia magna metabolite and an algal metabolite. It is a long-chain fatty acid, a straight-chain saturated fatty acid and a saturated fatty acid. It is a conjugate acid of an octadecanoate. It derives from a hydride of an octadecane.

GHS Hazard Statements

• H315 (79.23%): Causes skin irritation [Warning Skin corrosion/irritation]

• H319 (22.92%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

• H335 (29.69%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

• H412 (10.92%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

First Aid

In case of exposure:

EYES: Remove contact lenses if present, flush eyes with water for 20-30 minutes, then seek medical help and transport to a hospital immediately.

SKIN: Flood affected skin with water, wash thoroughly with soap and water, seek medical help if symptoms develop.

INHALATION: Leave contaminated area, seek fresh air, call for medical assistance if symptoms occur, provide proper respiratory protection.

INGESTION: Do not induce vomiting. If conscious, give water and seek medical help. If unconscious, ensure open airway and transport to hospital without inducing vomiting (NTP, 1992)

National Toxicology Program, Institute of Environmental Health Sciences, National Institutes of Health (NTP). 1992. National Toxicology Program Chemical Repository Database. Research Triangle Park, North Carolina.

Chemical and Physical Properties

Source: PubChem