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COPPER (I) OXIDE
ICSC: 0421
Peer-Review Status: 04.09.1997 Validated
Dicopper oxide
Cuprous oxide
Red copper oxide 
CAS #: 1317-39-1 RTECS #: GL8050000
EC #: 029-002-00-X
EINECS #: 215-270-7
    Formula: Cu2O
Molecular mass: 143.1

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! STRICT HYGIENE!   
Inhalation Cough. Sore throat. Fever. Metallic taste. See Notes.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Dry skin.    Remove contaminated clothes. Rinse and then wash skin with water and soap. 
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. Diarrhoea. Nausea. Vomiting. Metallic taste.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & 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. Carefully collect remainder. Then store and dispose of according to local regulations.   
EC Classification
Symbol: Xn, N; R: 22-50/53; S: (2)-22-60-61 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
   

IMPORTANT DATA
Physical State; Appearance
YELLOW, RED OR BROWN CRYSTALLINE POWDER. 

Physical dangers
 

Chemical dangers
 

Occupational exposure limits
TLV (as Cu): 1mg/m³ as TWA; (ACGIH 2007).
TLV (as Cu): 0.2mg/m³ as TWA; (ACGIH 2007).
MAK (inhalable fraction): 0.1 mg/m³; Peak limitation category: II(2); Pregnancy risk group: C; (DFG 2006). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. Inhalation of fume may cause metal fume fever. Ingestion could cause effects on the kidneys and liver. The effects may be delayed. 

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Decomposes at 1800°C
Melting point: 1232°C
Relative density (water = 1): 6.0
Solubility in water: none 
 

NOTES
Headache, cough, sweating, nausea and fever may be caused by freshly formed fumes or dust of copper oxide.
The symptoms of metal fume fever do not become manifest until 4-12 hours after exposure.
C. I. 77402, Copox, Copper Nordox, Copper Sardex, Perenox, Yellow Cuprocide are trade names.
Card has been partly updated in October 2005.
See sections Occupational Exposure Limits, EU classification, Emergency Response.
Card has been partly updated in October 2006.
See sections Occupational Exposure Limits, Ingestion First Aid.
Card has been partially updated in July 2007: see Occupational Exposure Limits. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations