Dicopper oxide
Cuprous oxide
Red copper oxide
Cu2O
Molecular mass: 143.1
ICSC # 0421
CAS # 1317-39-1
RTECS # GL8050000
EC # 029-002-00-X
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Cough.
Sore throat.
Metal fume fever. Metallic taste.
See Notes.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Dry skin.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
Pain.
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Safety goggles
or
eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Diarrhoea.
Nausea.
Vomiting.
Metallic taste.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give one or two glasses of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
Personal protection: P2 filter respirator for harmful particles.
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Xn symbol
N symbol
R: 22-50/53
S: 2-22-60-61
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Important Data
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Physical State; Appearance:
YELLOW, RED OR BROWN CRYSTALLINE POWDER.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: (as Cu, dust) 1 mg/m3 as TWA; TLV: (as Cu, fume) 0.2 mg/m3 as TWA; (ACGIH 2007).
MAK: (Inhalable fraction) 0.1 mg/m3
Peak limitation category: II(2); Pregnancy risk group: C;
(DFG 2006).
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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
irritates
the eyes
and
the respiratory tract.
Inhalation of fumes may cause metal fume fever.
The substance may cause effects on the kidneys and liver after ingestion.
The effects may be delayed.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
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Physical
Properties
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Decomposes below boiling point at 1800°C
Melting point: 1232°C
Relative density (water = 1): 6.0
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Solubility in water:
none
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Environmental
Data
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N O T E S
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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.
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ADDITIONAL INFORMATION
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ICSC: 0421
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COPPER (I) OXIDE
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(C) IPCS, CEC, 1994
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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.
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