NALCO 8330

Hazardous Ingredients

Sodium Metasilicate Sodium Tetraborate Sodium Nitrite Sodium Nitrate Sodium Mercaptobenzothiazole CAS NO % (w/w) 6834-92-0 1.0 - 5.0 1330-43-4 1.0 - 5.0 7632-00-0 1.0 - 5.0 7631-99-4 1.0 - 5.0 2492-26-4 0.0 - 0.1 HAZARDS IDENTIFICATION **EMERGENCY OVERVIEW** WARNING Contains sodium nitrite. May be harmful or fatal if swallowed. Substances in the product can lead to the formation of methemoglobin. Unborn children are particularly sensitive to methemoglobinemia. May cause skin and eye irritation. May cause sensitization by skin contact. Do not get in eyes, on skin, on clothing. Do not take internally. Keep container tightly closed. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. After contact with skin, wash immediately with plenty of water. If swallowed, seek medical advice immediately and show this container or label. Protect product from freezing. Wear suitable protective clothing, gloves and eye/face protection. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions. If product is allowed to dry, the sodium nitrite is an oxidizing agent and can initiate the combustion of other materials. PRIMARY ROUTES OF EXPOSURE Eye, Skin HUMAN HEALTH HAZARDS - ACUTE EYE CONTACT Can cause moderate irritation. SKIN CONTACT Can cause moderate irritation. May cause sensitization by skin contact. INGESTION Not a likely route of exposure. Large exposures may be fatal. Ingestion of sodium nitrite can cause methemoglobinemia which can lead to cyanosis and possible death. Pregnant women and their fetuses are particularly sensitive to the effects of methemoglobinemia. INHALATION Not a likely route of exposure. Aerosols or product mist may irritate the upper respiratory tract. AGGRAVATION OF EXISTING CONDITIONS Sodium Nitrite. Pregnant women are particularly sensitive to methemoglobinemia. EMERGENCY TELEPHONE NUMBER(S) (800) 424-9300 (24 Hours) CHEMTREC HUMAN HEALTH HAZARDS - CHRONIC Repeated ingestion of small amounts of sodium nitrite causes drops in blood pressure, rapid pulse, headaches and visual disturbances. It may also react with organic amines in the body to form carcinogenic nitrosamines.