- Cadmium monoxide
- Cadmium(II) oxide
Dark-brown, infusible powder or cubic crystals. Odorless.
High purity cadmium oxide is used as a second polarizer (in addition to silver oxide) in silver-zinc storage batteries.
Registry Numbers and Inventories.
EC Index Number
Carcinogenic Category 2; Toxic; Harmful
Tumorigen; Mutagen; Reproductive Effector; Human Data
Swiss Giftliste 1
Japan ENCS (MITI)
Sublimation point, °C
Vapor pressure, mmHg
Odor Threshold Odor threshold Odorless
Solubility in water
Hazards and Protection.
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Do not breathe dust.
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stable under normal temperatures and pressures. May discolor on exposure to light.
Oxidizing agents, magnesium.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
When heated to decomposition, it emits toxic fumes of cadmium.
Fire may produce irritating, corrosive and/or toxic gases.
OSHA PEL: 1910.1027 TWA 0.005 mg/m3 NIOSH REL: Ca See Appendix A *Note: REL and PEL apply to all Cd compounds (as Cd). NIOSH IDLH: Potential occupational carcinogen 9 mg/m3 (as Cd)
O, G-A2, I-1, N-1, CP65
Chronic exposure may cause reproductive disorders and teratogenic effects. Cadmium and compounds may cause lung, liver and kidney damage and lung and prostrate cancer in humans. Potential cancer hazard. Inhalation over a number of years results in chronic cadmium poisoning , a disease characterized by distinctive, nonhypertrophic emphysema wi th or without renal tubular injury. Long term exposure may also cause anemia, chronic rhinitis, yellow discoloration of the teeth and bone changes.
Harmful if swallowed. Symptoms may be delayed 15 - 30 hours after ingestion and include increased salivation, nausea and vomiting, abdominal pains, diarrhea, vertigo, and unconsciousness.
Harmful if inhaled. 12-16 hours after inhalation, the following symptoms may occur: change in sense of smell, headache, vertigo, gastrointestinal lesions, sever re abdominal and chest pains, cough with blood, dyspnea, high temperat ure, severe persperiation, collapse and pneumonia. Causes kidney and lung damage. May cause severe pulmonary edema resulting in death.
May cause skin irritation.
May cause eye irritation.
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth respiration if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
I; II; III
USCG CHRIS Code