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COBALT SULFIDEICSC: 1529 (April 2004)
Cobalt monosulfide
Cobalt(II) sulfide
CAS #: 1317-42-6
EC Number: 215-273-3

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough. Sore throat. Shortness of breath. Wheezing.  Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin Redness.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants. 
PACKAGING
 
COBALT SULFIDE ICSC: 1529
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
GREY POWDER OR REDDISH-SILVERY CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes on heating. This produces toxic gases and irritating fumes including hydrogen sulfide and sulfur oxides. Reacts with strong oxidants. 

Formula: CoS
Molecular mass: 91.0
Melting point: >1116°C
Density: 5.5 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
May cause mechanical irritation. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (as Co, inhalable fraction): 0.02 mg/m3, as TWA; (DSEN); (RSEN); A3 (confirmed animal carcinogen with unknown relevance to humans); BEI issued.
MAK: (as Co, inhalable fraction): skin absorption (H); sensitization of respiratory tract and skin (SAH); carcinogen category: 2; germ cell mutagen group: 3A 

ENVIRONMENT
 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.
The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation are therefore essential. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xi, N; R: 43-50/53; S: (2)-24-37-60-61 

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