XLW-4 - USA- Revised 11/06/2006 - Baker Hughes

Region USABaker HughesMaterial Safety Data SheetSECTION I - GENERAL INFORMATIONPRODUCT NAME:ITEM NUMBER:CHEMICAL DESCRIPTION:PRODUCT USE:SUPPLIER:ADDRESS:EMERGENCY TELEPHONE NUMBERPREPARED BY:DATE PREPARED:XLW-4488071, 424351Borate solutionCross-linker for fracturingBaker Hughes11211 FM 2920Tomball, TX 77375(800)424-9300 for CHEMTREC(703)527-3887 Alaska and InternationalBaker Hughes(281)351-8131November 4, 2003Supersedes: August 9, 2000HMIS HAZARD INDEXHEALTH: 2FLAMMABILITY: 1REACTIVITY: 0PERSONAL PROTECTION: gSECTION II - HAZARDOUS COMPONENTSHAZARDOUS COMPONENTS CAS # PERCENT HAZARDSodium borate decahydrate 1303-96-4 10-30 IrritantSECTION III - FIRE AND EXPLOSION HAZARD DATAFLASHPOINT (METHOD):>300°FUPPER EXPLOSION LIMIT(% BY VOL): N.E.LOWER EXPLOSION LIMIT(% BY VOL): N.E.AUTO-IGNITION TEMPERATURE:N.E.EXTINGUISHING MEDIA:Dry chemical, CO2, or foam.SPECIAL FIRE FIGHTING PROCEDURES: NoneEXPLOSIONDATA:Can react violently with acetic anhydride, (aniline +nitrobenzene, CaCOCl2,CrO3,Cr2O3,KMnO4, K2O2,AgClO4, Na2O2, NaH, (F2+ PbO), (HClO4+PbO).HAZARDOUS COMBUSTION PRODUCTS: May evolve toxic fumes of sodium oxideSECTION IV - HEALTH HAZARD DATAXLW-4 - USA- Revised 11/06/2006/Page 1UNCONTROLLED WHEN PRINTED

PRIMARY ROUTES OF ENTRY:Eye contact, ingestionACUTE OVEREXPOSURE EFFECTS:SKIN CONTACT:SKIN ABSORPTION:EYE CONTACT:INHALATION:INGESTION:Prolonged or repeated contact with skin may cause irritation orcontact dermatitis.Not absorbed by skin.Eye contact may cause irritation and redness.Not an expected route of entry.Borax ingestion of 5 - 10 grams by children can cause severevomiting, diarrhea, shock, and even death.CHRONIC OVEREXPOSURE EFFECTS:Not knownEXPOSURE LIMITS:HAZARDOUS COMPONENT ACGIH TLV OSHA PELSodium borate decahydrate 5 mg/m3 Dust N.E.CARCINOGENICITY, REPRODUCTIVE EFFECTS:Not listed as carcinogen - IARC, NTP, or OSHATERATOGENICITY, MUTAGENICITY:No effects listed.TOXICITY STUDIES:LD(50) ModerateLC(50) N.E.SECTION V - FIRST AID PROCEDURESFOR EYES:FOR SKIN:FOR INHALATION:FOR INGESTION:Immediately flush with plenty of water for at least 15 minutes. If irritationpersists, contact a physician.Flush skin with water or wash with mild soap and water if available. If irritationpersists, contact a physician.Remove to fresh air. If breathing has stopped, give artificial respiration. Keepperson warm, quiet and get medical attention.Contact a poison control center immediately.SECTION VI - PHYSICAL DATAAPPEARANCE AND ODOR: Clear, colorless liquid, no odorSPECIFIC GRAVITY: 1.13VAPOR PRESSURE:N.A.VAPOR DENSITY (air=1): N.A.EVAPORATION RATE:N.A.BOILING POINT:N.A.FREEZING POINT: 15°FSOLUBILITY IN H20:InfinitepH: 7.5XLW-4 - USA- Revised 11/06/2006/Page 2UNCONTROLLED WHEN PRINTED

SECTION VII - REACTIVITY DATACHEMICAL STABILITY:StableINCOMPATIBLE MATERIALS: Can react violently with acetic anhydride, (aniline +nitrobenzene), CaCOCl2, CrO3, Cr2O3, KMnO4,K2O2, AgClO4, Na2O2, NaH, (F2 + PbO), (HClO4 +PbO).HAZARDOUS POLYMERIZATION:Does not polymerizeHAZARDOUS DECOMPOSITION PRODUCTS: If heated to loss of water, will emit toxic fumes ofsodium oxide.SECTION VIII - SPECIAL/PERSONAL PROTECTIONVENTILATION:RESPIRATORY PROTECTION:PROTECTIVE GLOVES:EYE PROTECTION:OTHER PROTECTIVE EQUIPMENT:The use of mechanical ventilation is recommended wheneverthis product is used in a confined space. Where engineeringcontrols are not feasible, assure use is in an area where thereis natural air movement.Not requiredRubber or plasticGogglesEyewash bottles or other rinsing equipment should be easilyaccessible.SECTION IX - HANDLING PRECAUTIONSLEAK AND SPILL PROCEDURES:WASTE DISPOSAL:HANDLING & SPECIAL EQUIPMENT:STORAGE REQUIREMENTS:Dike or contain spill to prevent material from enteringwaterways. Pump large spills into salvage containers. Soak upresidue or small spills with absorbent pads, clay, or dirt andplace in salvage containers.If this product becomes a waste it does not meet therequirements of a RCRA hazardous waste. Always dispose ofaccording to local/state/federal regulations.Use proper chemical handling procedures. Material is saturatedwith borax. Addition of brines, etc., may result in precipitation ofborate compounds.NoneSECTION X - REGULATORY INFORMATIONSHIPPING INFORMATIONPROPER SHIPPING NAME:HAZARD CLASS:UN/NA NUMBER:PACKING GROUP W/ "PG":SUBSIDIARY RISK:REPORTABLE QUANTITY (RQ):EMERGENCY RESPONSE GUIDE #:Not DOT RegulatedN.A.N.A.N.A.N.A.N.A.N.A.XLW-4 - USA- Revised 11/06/2006/Page 3UNCONTROLLED WHEN PRINTED

ENVIRONMENTAL INFORMATIONSARA TITLE IIISECTION 302/304SECTION 311/312SECTION 313This product does not contain ingredients listed as an ExtremelyHazardous Substance.ImmediateThis product does not contain ingredients (at a level of 1% or greater) onthe List of Toxic Chemicals.OTHER REGULATORY INFORMATIONTSCA INVENTORY:CALIFORNIA PROP 65:All of the components in this appear on the TSCA inventory.None of the chemicals on the current Proposition 65 list areknown to be present in this product.The information contained herein is based on data considered accurate. However, no warranty is expressed orimplied regarding the accuracy of these data or the results to be obtained from the use thereof. Vendor assumesno responsibility for injury to vendee or third persons proximately caused by the material if reasonable safetyprocedures are not adhered to as stipulated in the data sheet. Additionally, vendor assumes no responsibility forinjury to vendee or third persons proximately caused by abnormal use of the material even if reasonable safetyprocedures are followed. Furthermore, vendee assumes the risk in his use of the material.XLW-4 - USA- Revised 11/06/2006/Page 4UNCONTROLLED WHEN PRINTED