ICSC 0530 - PALMITIC ACID

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PALMITIC ACID

ICSC: 0530
_{November 1997}

Hexadecanoic acid
1-Pentadecanecarboxylic acid
Cetylic acid

CAS No: 57-10-3
RTECS No: RT4550000

C₁₆H₃₂O₂
Molecular mass: 256.5

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible.	NO open flames.	Powder, water spray, foam, carbon dioxide.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation		Local exhaust or breathing protection.	Fresh air, rest.
Skin
Eyes		Safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL	PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.

EMERGENCY RESPONSE	SAFE STORAGE
	Separated from bases, oxidants and reducing agents. Well closed.

IMPORTANT DATA
Physical State; Appearance COLOURLESS OR WHITE CRYSTALS. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Reacts with bases, oxidants and reducing agents. Occupational exposure limits TLV not established. MAK: IIb (not established but data is available) (DFG 2006).	Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Inhalation risk Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly by dispersing.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 351-352°C Melting point: 63°C Relative density (water = 1): 0.85 Solubility in water: none Vapour pressure, Pa at 154°C: 133 Octanol/water partition coefficient as log Pow: 5.31

NOTES

Health effects of exposure to the substance have not been investigated.
Card has been partially updated in August 2007: see Occupational Exposure Limits.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2006

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Updated by AS. Approved by GS. Last update: 29.01.2008