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MATERIAL SAFETY DATA SHEET ' Guar Gum 25 March 2004 ' 3 Hazards identification(continued) ' Ingestion: DO NOT INGEST. While this product is not toxic by ingestion, swallowing small amounts could cause complete blockage of the mouth, pharynx, trachea, esophagus and/or gastrointestinal system which may cause choking, suffocation and/or other life threatening medical conditions. Get medical attention immediately. Chronic(long-term exposure) Health Effects: • Inhalation: Overexposure to any nuisance dust may cause lung injury. Symptoms include cough, shortness of breath and reduced pulmonary function, allergic sensitization. • Carcinogenicity: None of the components of this product are listed as carcinogens or suspected carcinogens by OSHA, IARC or NTP. • Medical Conditions Aggravated by Exposure: Persons with pre-existing skin and respiratory disorders may be at an increased risk from exposure. Physical Hazards: • Dust: It is well documented that a dust cloud will fuel an explosion in a confined area with sufficient oxygen and an ignition source. Surface (passive)and airborne(active) dust(fuel) is a potential hazard and the appropriate protective measures should be taken when handling guar outside of the bag in confined work spaces, dust collectors, dryers, mills, sifters, blender, pneumatic conveyance systems, storage tanks, etc. . ' Slick Surfaces: It is possible that an employee will be exposed to guar powder or dust in combination with water on work platform,floor or stair, which will result in a slippery surface. ' 4.'First Aid Measures Eye: Flush immediately with large amounts of water. Eyelids should be held away from the eyeball to ensure Ithorough rinsing. If irritation persists get medical attention. Skin: First aid is not normally needed. Wash exposed skin with soap and water after use. If irritation or rash ' develops get medical attention. Use skin lotion if dryness occurs. Inhalation: If symptoms of irritation or allergy develop, remove person from source of exposure to fresh air. If symptoms persist get medical attention. ' Ingestion: Swallowing even small amounts may have serious, life-threatening effects. Get immediate medical attention. ' 6.fir�fighting 1lheasureS Flashpoint: Not Applicable Lower Explosion Limit: 0.040 oz/cf ' Autoignition Temperature: Not Determined Upper Explosion Limit: Not determined Extinguishing Media: Use water fog, dry chemical, carbon dioxide or foam. Do not use streams of water as dust dispersed by water streams can explode. ' Special Fire Fighting Procedures: Wear positive pressure, self-contained breathing apparatus and full protective clothing. ' Unusual Fire and Explosion Hazards: Powder has the potential to form explosive mixtures with air.Avoid creating dust. Keep away from heat, sparks and open flames. As with all dusty materials, use preventative measures including spark proof motors and ventilation to control dust. Combustion Products: Oxides of carbon and nitrogen. Page 2 of 5 MSDS