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TIN(II) OXIDEICSC: 0956
October 2004
CAS #: 21651-19-4Tin monoxide
Stannous oxide
EINECS #: 244-499-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes   Wear 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 refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. If appropriate, moisten first to prevent dusting. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
 
PACKAGING
 
TIN(II) OXIDE ICSC: 0956
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
BLUE-TO-BLACK CRYSTALLINE POWDER. 

Physical dangers
No data. 

Chemical dangers
See Notes. 

Formula: SnO
Molecular mass: 134.7
Density: 6.45 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
May cause mechanical irritation to the respiratory tract. 

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 inhalation of dust particles may cause effects on the lungs. This may result in a benign pneumoconiosis (stannosis). 


Occupational exposure limits
TLV: 2 mg/m3, ppm, as TWA 

ENVIRONMENT
Bioaccumulation of this chemical may occur in crustacea and fish. 

NOTES
On heating at 300°C in air, oxidation to stannic oxide proceeds incandescently. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations