ICSC 0421 - COPPER (I) OXIDE

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COPPER (I) OXIDE	ICSC: 0421 (November 2023)
Red copper oxide Dicopper oxide Cuprous oxide

CAS #: 1317-39-1

EC Number: 215-270-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Risk of fire and explosion on contact with aluminium. See Chemical Dangers.	NO contact with aluminium. See Chemical Dangers.	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. Fever. Metallic taste. See Notes.	Use local exhaust or breathing protection.	Fresh air, rest. Seek medical attention if you feel unwell.
Skin
Eyes	Redness. Pain. Corneal damage. Burns.	Wear safety goggles or eye protection in combination with breathing protection.	Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.
Ingestion	Metallic taste. Abdominal pain. Nausea. Vomiting. Diarrhoea.	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	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance, safety goggles and protective gloves. Do NOT let this chemical enter the environment. 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.	According to UN GHS Criteria DANGER Harmful if swallowed or if inhaled Causes serious eye damage Very toxic to aquatic life with long lasting effects Transportation UN Classification
STORAGE
Separated from aluminium. See Chemical Dangers. Store in an area without drain or sewer access. Store only in original packaging.
PACKAGING

COPPER (I) OXIDE

ICSC: 0421

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance YELLOW, RED OR BROWN CRYSTALLINE POWDER. Physical dangers Chemical dangers Reacts with aluminium powder. This generates fire and explosion hazard.	Formula: Cu₂O Molecular mass: 143.1 Decomposes at 1800°C Melting point: 1232°C Relative density (water = 1): 6.0 Solubility in water, g/l at 20°C: <0.1 (practically insoluble)

PHYSICAL & CHEMICAL INFORMATION

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

Physical dangers

Chemical dangers
Reacts with aluminium powder. This generates fire and explosion hazard.

Formula: Cu₂O
Molecular mass: 143.1
Decomposes at 1800°C
Melting point: 1232°C
Relative density (water = 1): 6.0
Solubility in water, g/l at 20°C: <0.1 (practically insoluble)

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is corrosive to the eyes. The substance is irritating to the respiratory tract and digestive tract. Inhalation of fumes may cause metal fume fever. Exposure at high levels could cause kidneys and liver impairment. The effects may be delayed.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. Effects of long-term or repeated exposure Lungs may be affected by repeated or prolongated exposure to dust particles.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes. The substance is irritating to the respiratory tract and digestive tract. Inhalation of fumes may cause metal fume fever. Exposure at high levels could cause kidneys and liver impairment. The effects may be delayed.

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

Effects of long-term or repeated exposure
Lungs may be affected by repeated or prolongated exposure to dust particles.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.2 mg/m³, as TWA; (fume): (as Cu):. TLV: 1 mg/m³, as TWA; (dust and mists): (as Cu):. MAK: (respirable fraction): 0.01 mg/m³; peak limitation category: II(2); pregnancy risk group: C

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment.

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 a few hours have passed.

ADDITIONAL INFORMATION

EC Classification

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