NALCO 9725

SECTION 2: Hazards identification

EMERGENCY OVERVIEW** DANGER Corrosive. May cause tissue damage. Contains formaldehyde, a probable human carcinogen based on sufficent animal studies and limited human data. Do not get in eyes, on skin, on clothing. Do not take internally. Use with adequate ventilation. Keep container tightly closed and in a well-ventilated place. 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. Wear a face shield. Wear chemical resistant apron, chemical splash goggles, impervious gloves and boots. Contact with reactive metals (e.g. aluminum) may result in the generation of flammable hydrogen gas. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of nitrogen (NOx) under fire conditions.

Principle Routes of Exposure

Eye, Skin Nalco Company 1601 W. Diehl Road • Naperville, Illinois 60563-1198 (630)305-1000 1 / 11

Health hazards

ACUTE EYE CONTACT : Corrosive. Will cause eye burns and permanent tissue damage. SKIN CONTACT : May cause severe irritation or tissue damage depending on the length of exposure and the type of first aid administered. INGESTION : Not a likely route of exposure. Corrosive; causes chemical burns to the mouth, throat and stomach. INHALATION : Not a likely route of exposure. Irritating, in high concentrations, to the eyes, nose, throat and lungs. SYMPTOMS OF EXPOSURE : Acute : A review of available data does not identify any symptoms from exposure not previously mentioned. Chronic : A review of available data does not identify any symptoms from exposure not previously mentioned. AGGRAVATION OF EXISTING CONDITIONS : A review of available data does not identify any worsening of existing conditions.