MATERIAL SAFETY DATA SHEET

PRODUCT

COREXIT® 9500

EMERGENCY TELEPHONE NUMBER(S)

(800) 424-9300 (24 Hours) CHEMTREC

Nalco Energy Services, L.P.

P.O. Box 87 • Sugar Land , Texas 77487-0087 • (281)263-7000 For additional copies of an MSDS visit www.nalco.com and request access 3 / 10 EXTINGUISHING MEDIA : Alcohol foam, C arbon dioxide, Foam, Dr y powder, Other ex tinguishing agent suitabl e for Class B f ires, For large fires, use water spray or fog, thoroughly drenching the burning material. Water mist may be used to cool closed containers. UNSUITABLE EXTINGUISHING MEDIA : Do not use water unless flooding amounts are available. FIRE AND EXPLOSION HAZARD : Low Fire Hazard; liquids may burn upon heating to tem peratures at or above the flash point. May evolve oxides of carbon (COx) under fire conditions. May evolve oxides of sulfur (SOx) under fi re conditions. SPECIAL PROTECTIVE EQUIPMENT FOR FIRE FIGHTING : In case of fire, wear a full face positive-pressure self contained breathing apparatus and protective suit.

6.

ACCIDENTAL RELEASE MEASURES

PERSONAL PRECAUTIONS : Restrict access to area as appropriate unt il clean-up operations are complete. Stop or reduce any leaks if it is safe to do so. Ventilate spill area if possible. Do not touch spil led material. Remove sources of ignition. Have emergency equipment (for fires, spil ls, leaks, etc.) readily avail able. Use personal protective equipment recommended in Section 8 (Exposure Cont rols/Personal Protecti on). Notify appropriate government, occupational health and safety and environmental authorities. METHODS FOR CLEANING UP : SMALL SPILLS: Soak up spill wit h absorbent material. Place resi dues in a suitable, cover ed, properly labeled container. Wash affected area. LARGE SP ILLS: Contain li quid using absorbent material, by digging trenches or by diking. Reclaim into recovery or salvage drums or tank truck for pr oper disposal. Clean contaminated sur faces with water or aqueous cleaning agents. Contact an approved waste hauler for di sposal of contaminated recovered material. Dispose of material in compliance with regulations indicat ed in Section 13 (Disposal Considerations). ENVIRONMENTAL PRECAUTIONS : Do not contaminate surface water.

7.

HANDLING AND STORAGE