Bronze S - Silicon Bronze

SECTION 2: Hazards identification

COPPER Effects of overexposure: under normal handling and use, exposure to massive forms of copper represents very few hazards. Particulates generated from the use of this substance may pose some health risks. Acute exposure will cause irritation to the eye; foreign body reaction causes Chalcosis. Prolonged and repeated exposure to the skin will cause irritation or discoloration. Acute exposure will cause primary gastrointestinal symptoms with nausea and vomiting, abdominal pain and diarrhea. In severe cases headache, sweating, kidney and liver and central nervous system damage progressing to convulsions, coma and possible death (rarely). Inhalation symptoms consist primarily of irritation. Cases of “metal fume fever” have been reported. MANGANESE Chronic manganese poisoning may result from inhalation of dust or fume. The central nervous system is the chief site of the injury. Chronic manganese poisoning is not a fatal disease although it is extremely disabling. Some individuals may be hyper susceptible to manganese. Freshly formed manganese fume has caused fever and chills similar to metal fume fever. NICKEL The most common ailment arising from contact with nickel or its compounds is an allergic dermatitis known as “nickel itch” which usually occurs when the skin is moist. Generally nickel and most salts of nickel do not cause systemic poisoning. Iarc has determined that there is at least evidence that nickel and certain compounds may be human carcinogenic to laboratory animals by various routes of entry. SILICON Silicon is a nuisance dust. Deposition in the eyes, ears, skin, and nose may result in injury. Inhalation produces no change in x-ray. TIN Exposure to the massive form of tin presents few hazards in itself. However, normal handling of tin may result in generation of dusts. And inhalation or ingestion of these dusts may present potentially significant health hazards. Thermal cutting and melting of tin may produce fumes containing the component’s elements. Breathing these fumes may also present potentially significant health hazards. Special precautions should be taken if metal is contaminated. Prolonged inhalation of tin fumes or dusts, or ingestion of tin compounds can result in tin poisoning. Symptoms include abdominal pain or colic, constipation, nausea, joint and muscle pains, and muscular weakness. Severe cases of overexposure may lead to central nervous systems disorders, characterized by somnolence, stupor, and ultimately death ZINC Solid massive form of material is not combustible under ordinary fire conditions. Fire and explosion hazards are moderate when material is in the form of dust and exposed to heat or flames or in contact with powerful oxidizers. IRON Flammable solid. May be harmful if inhaled or swallowed.