International Chemical Safety Cards

ZINC STEARATE

ICSC: 0987

Octadecanoic acid, zinc salt
Zinc distearate
Stearic acid, zinc salt
C₃₆H₇₀O₄Zn / Zn(C₁₈H₃₅O₂)₂
Molecular mass: 632.3
ICSC # 0987
CAS # 557-05-1
RTECS # ZH5200000
April 11, 2000 Peer reviewed

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Combustible. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames.	Powder, water spray, foam, carbon dioxide.
EXPLOSION	Finely dispersed particles form explosive mixtures in air.	Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding).

EXPOSURE		PREVENT DISPERSION OF DUST!
•INHALATION	Cough.	Avoid inhalation of fine dust and mist.	Fresh air, rest. Refer for medical attention.
•SKIN			Rinse skin with plenty of water or shower.
•EYES		Safety goggles.	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.	Rinse mouth. Give plenty of water to drink.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. (Extra personal protection: P1 filter respirator for inert particles).

R:
S:

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0987

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

ZINC STEARATE

ICSC: 0987

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PHYSICAL STATE; APPEARANCE:
WHITE, FINE, SOFT POWDER.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.

CHEMICAL DANGERS:
The substance decomposes on burning producing irritating and toxic fumes including zinc oxide.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 10 mg/m³ (ACGIH 1999).
OSHA PEL: TWA 15 mg/m³ (total) TWA 5 mg/m³ (resp)
NIOSH REL: TWA 10 mg/m³ (total) TWA 5 mg/m³ (resp)
NIOSH IDLH: No data

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol.

INHALATION RISK:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly.

EFFECTS OF SHORT-TERM EXPOSURE:

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Melting point: 130°C
Density: 1.1
g/cm3
Solubility in water:
none

Flash point: 277°C o.c.
Auto-ignition temperature: 420°C
Explosive limits, vol% in air: 20 g/m³ - ?
Octanol/water partition coefficient as log Pow: 1.2

ENVIRONMENTAL
DATA

N O T E S

NFPA Code: H 0; F 1; R 0;

ADDITIONAL INFORMATION

ICSC: 0987	ZINC STEARATE
(C) IPCS, CEC, 1994

IMPORTANT LEGAL NOTICE:

Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.