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ANTIMONY ICSC: 0775
Date of peer-review: October 1997

Antimony black
Antimony regulus
Stibium
CAS # 7440-36-0 Sb
RTECS # CC4025000 Atomic mass: 121.8
UN # 2871
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Gives off irritating or toxic fumes (or gases) in a fire.
NO open flames.
Water spray, powder.
EXPLOSION Finely dispersed particles form explosive mixtures in air. Risk of fire and explosion on contact with strong oxidants.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

Inhalation Cough. Vomiting. (See Ingestion).
Local exhaust or breathing protection.
Fresh air, rest.
Skin Dry skin.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes
Safety goggles, or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Burning sensation. Diarrhoea. Vomiting. Death.
Do not eat, drink, or smoke during work.
Rinse mouth. Rest. Refer for medical attention.
SPILLAGE DISPOSAL 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: P2 filter respirator for harmful particles).
Do not transport with food and feedstuffs.
EU Classification
UN Classification
UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61G11c
Separated from strong oxidants, acids, food and feedstuffs.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2001

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ANTIMONY ICSC: 0775
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
SILVER-WHITE, LUSTROUS, HARD, BRITTLE METAL OR DARK GRAY POWDER.

PHYSICAL DANGERS:
Dust explosion possible if in powder or granular form, mixed with air.

CHEMICAL DANGERS:
On combustion, forms toxic fumes (antimony oxides). Reacts violently with oxidants (e.g. halogens, alkali permanganates, nitrates), and powdered metals causing fire and explosion hazard. On contact with acids may emit toxic gas (stibine). See ICSC 0776.

OCCUPATIONAL EXPOSURE LIMITS:
TLV (as Sb): 0.5 mg/m^3 (as TWA) (ACGIH 1997). MAK as Sb: 0.5 mg/m^3; (1996).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

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

EFFECTS OF SHORT-TERM EXPOSURE:
Exposure by ingestion could cause gastrointestinal irritation. Exposure far above the OEL may result in death.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis, especially when exposed to fumes. The substance may have effects on the eye, respiratory tract and lungs, resulting in pneumoconiosis.
PHYSICAL PROPERTIES
Boiling point: 1635C
Melting point: 630C
Relative density (water = 1): 6.7
Solubility in water: none
Vapour pressure, Pa at 886C: 133
ENVIRONMENTAL DATA

NOTES
Other boiling points: 1325C, 1440C, 1750C. Depending on the degree of exposure, periodic medical examination is indicated.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2001

See Also:
        Antimony (UK PID)