Standard Operating Procedure
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Standard Operating Procedure Barium Hydroxide Print a copy and insert into your Laboratory Safety Manual and Chemical Hygiene Plan. Refer to instructions for assistance.
Type of SOP: ☐ Process ☒Hazardous Chemical ☐ Hazardous Class Purpose Barium hydroxide is a corrosive, strong base. It reacts with strong acids, during which heat is liberated due to exothermic reaction. If not stored and handled properly, this can pose a serious threat to the health and safety of laboratory personnel, emergency responders and chemical waste handlers. Hence, it is important to follow safety protocols to handle this chemical. Physical & Chemical Properties/Definition of Chemical Group CAS#: 17194-00-2 Class: Corrosive Molecular Formula: Ba(OH)2 Form (physical state): white powder Color: White Boiling point: 780 °C pH: 13.0 – 14 Potential Hazards/Toxicity OSHA Hazards - Corrosive Signal word: Danger! Potential Health Effects Inhalation May be harmful if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract. Skin May be harmful if absorbed through skin. Causes skin burns. Eyes Causes eye burns. Causes severe eye burns. Ingestion May be harmful if swallowed. Signs and Symptoms of Exposure Spasm, inflammation and edema of the larynx, spasm, inflammation and edema of the bronchi, pneumonitis, pulmonary edema, burning sensation, cough, wheezing, laryngitis, shortness of breath, headache, nausea & vomiting. Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin. Engineering Controls NOTE: Lab-specific information on engineering controls may be included in the Protocol/Procedure section. Work with barium hydroxide should be conducted in a fume hood unless other controls are designated in the Protocol/Procedure section. Sash height should be kept low to avoid escaping fumes and provide a physical barrier.
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. Type of gloves recommended for barium hydroxide: standard nitrile. For handling concentrated solutions of barium hydroxide, thicker nitrile gloves or double-gloving is recommended. NOTE: Lab-specific and chemical-specific information on glove selection may be included in the Protocol/Procedure section. Refer to glove selection from the link below: For glove selection, go to: http://ehs.berkeley.edu/hs/63-laboratory-safety/94-glove-selection-and-usage.html Eye Protection Tightly fitting safety goggles. Use face shield (8-inch minimum) when appropriate (not protected by fume hood sash for example). Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU) or ANSI Z87-1. Skin and Body Protection Long pants, closed-toed and closed-heeled shoes, cotton-based clothing/attire, and apron/lab coat must be worn for protecting against chemical hazards. Use acid/base resistant apron/lab coat when working with concentrated bases. Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Avoid contact with skin, eyes and clothing.
Consult a physician. Show the appropriate safety data sheet to the doctor in attendance. Move out of dangerous area. Call EH&S at 510-642-9090. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water (under safety shower). Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes (using emergency eyewash station) and consult a physician. Continue rinsing eyes during transport to hospital. If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Special Handling and Storage Requirements Precautions for safe handling Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed. It is recommended to perform all work with barium hydroxide in a chemical fume hood. Conditions for safe storage Keep container tightly closed in a dry and well-ventilated place. Materials to avoid: Segregate from; Strong oxidizing agents, Strong acids, Organic materials Spill and Accident Procedure Personal precautions Use appropriate Personal Protective Equipment (PPE). Avoid dust formation. Avoid breathing dust, vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal. Dispose of the spill clean-up waste according to EH&S guidelines. Wear appropriate PPE in this work. Chemical Spill on Body or Clothes Remove clothing and rinse body thoroughly in emergency shower for at least 15 minutes. Seek medical attention. Notify supervisor and EH&S at 510-642-9090 immediately. Chemical Splash Into Eyes Immediately rinse eyeball and inner surface of eyelid with water from the emergency eyewash station for 15 minutes by forcibly holding the eye open. Seek medical attention. Notify supervisor and EH&S at 510-642-9090 immediately. Medical Emergency Dial 911 and 510-642-9090Life Threatening Emergency, After Hours, Weekends And Holidays Dial 911 or go to the nearest emergency room. Note: All serious injuries must be reported to EH&S within 8 hours. Follow up with a call to 510-642-9090 to report the incident. Non-Life Threatening Emergency Go to the Occupational Health Facility (Tang Health Center). After hours, go to the nearest emergency room. Note: All serious injuries must be reported to EH&S within 8 hours. Follow up with a call to 510-642-9090 to report the incident. Needle stick/puncture exposure (as applicable to chemical handling procedure) Wash the affected area with antiseptic soap and warm water for 15 minutes. For mucous membrane exposure, flush the affected area for 15 minutes using an eyewash station. Go to the Occupational Health Facility (Tang Health Center). After hours, go to the nearest emergency room. Note: All needle stick/puncture exposures must be reported to EH&S within 8 hours. Follow up with a call to 510-642-9090 to report the incident. Decontamination/Waste Disposal Procedure NOTE: Lab-specific information on decontamination/waste disposal may be included in the Protocol/Procedure section. Wearing proper PPE, please decontaminate equipment and bench tops using soap and water. General hazardous waste disposal guidelines: Label Waste • Label all containers with the label provided at http://ehs.berkeley.edu/hm/279-new-hazardous-waste-program-hwp.html. See the EH&S Fact Sheet, “Hazardous Waste Management” for general instructions on procedures for disposing of hazardous waste. Dispose of Waste • Dispose of regularly generated chemical waste within 6 months. • Call EH&S for questions. Safety Data Sheet (SDS) Location Online SDS can be accessed at http://ucmsds.com. Protocol/Procedure - Barium hydroxide
Documentation of Training (signature and initials of all users is required)
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Barium hydroxide (pellets). Date: 8/27/2012 UCLA- EH&S GKM/SH Yüklə 47,41 Kb. Dostları ilə paylaş:
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