Ni-MH Rechargeable Battery

SECTION 2: Hazards identification

Substance/preparation: preparation Chemical Name CAS No. Concentration% Nickel hydroxide 12054-48-7 34-38 Cobalt oxide 11104-61-3 7-9 Hydrogen storage alloy 22-26 PA66 32131-17-2 0.5-1.2 The diaphragm 31175-20-9 2-4 Ploy(tetrafluoroethlene) 9002-84-0 0.2-0.8 Ploy(vinyl alcohol) 9002-89-5 0.1-0.5 Styrene 1,3-butadienepolymer 9003-55-8 0.1-0.5 Nickel 7440-02-0 10-12 Sodium hydoxide 1310-73-2 1-2 Potassium hydoxide 1310-58-3 2-4 Water 7732-18-5 7-10 Cobalt 7440-48-4 0.3-0.9 Zinc 7440-66-6 0.5-1.2 Section 3. Hazardous description Inhalation: During normal use inhalation is an unlikely route of exposure due to containment of hazardous materials within the battery case. However, should the batteries be exposed to extreme heat or pressures causing a breach in the battery cell case, exposure to the constituents may occur. skin and eyes will be heat injured when contacted with the substances contained in the battery, because it is strongly corrosive. Take it by accident can cause chemical burn of the alimentary canal, anabrosis and bleeding of the mucous membrane, and shock. Nickel compounds are carcinogenic. Cobalt compounds could cause erythremia, cardiomyopathy and goiter. Ingestion: If the battery case is breached in the digestive tract, the electrolyte may cause localized burns. Skin Absorption: No evidence of adverse effects from available data. Skin Contact: Exposure to the electrolyte contained inside the battery may result in chemical burns. Exposure to nickel may cause dermatitis in some sensitive individuals. Eye Contact: Exposure to the electrolyte contained inside the battery may result in severe irritation and chemical burns. Carcinogenicity: Nickel has been identified by the National Toxicology Program (NTP) as reasonably anticipated to be a carcinogen. Cobalt has been identified by IARC as a 2B carcinogen. Other Effects of Repeated (Chronic) Exposure: Chronic overexposure to nickel may result in cancer; dermal contact may result in dermatitis in sensitive individuals. Medical Conditions Aggravated by Overexposure: A knowledge of the available toxicology information and of the physical and chemical properties of the material suggests that overexposure in unlikely to aggravate existing medical conditions.