Nanomaterials SOP template



Standard Operating ProcedurePerchloric AcidChemical name, CAS:Perchloric Acid,PI:Date:Building:Lab #:Material Use:Perchloric acid (HClO4) is a strong oxidizing acid usually purchased as an aqueous solution at 70% at CSM. Perchloric acid is used for preparing perchlorate salts (used in rocket fuel) and electropolishing/etching metals. Potential Hazards: Perchloric acid is a strong acid and powerful oxidizer, but at room temperature aqueous solutions up to 70% behave as strong, non-oxidizing acids. Perchloric acid is a powerful oxidizer at concentrations above 70%, or at temperatures above room temperature. Perchloric acid is incompatible with many materials and will react violently or form shock sensitive explosive salts upon contact with organic, inorganic, or metallic substances. Perchloric acid vapors can react with fume hood ductwork and form explosive salts. Engineering Controls: All work must be conducted in a designated laboratory hood labelled: “DANGER, Perchloric Acid”Any process involving heating perchloric acid must be done in a laboratory hood with a built-in wash down system.Do not store any organic materials or other incompatible chemicals in the perchloric acid lab hood.Access to an eyewash and safety shower must be readily available.Laboratory hood sash height should be kept low to minimize escaping fumes and provide protection from splashes.The lab personnel must have easy access to a telephone (landline or cell phone).Work Practice Controls: Ensure that you have all the PPE required for handling perchloric acid.Do not leave any skin exposed when handing perchloric acid.Never work alone, and inform others in the immediate area when you are working with perchloric acid.Dilute by adding perchloric acid to water.Do not heat perchloric acid in an oil bath. Use a sand bath, hot plate, or heating mantle.Wash hands immediately after handling hazardous materials. Wash hands before exiting the lab.Purchase the smallest feasible quantities of perchloric acid and conduct small-scale experiments.Always use secondary containment when pouring or transferring perchloric acid.Lab emergency contact information must be readily available.Personal protective equipment (PPE): Lab CoatChemical Resistant ApronSplash GogglesFace ShieldGlovesButyl Long Pants/Closed-toe ShoesStorage: Store compounds in containers clearly labeled with contents. Keep containers in secondary containment.Keep containers tightly closed and store in a dry, cool, dark, well ventilated location.Separate from all other chemicals.Do not store on wood flooring or shelves.Limit stored quantities to only what you need for 6-12 months.Immediately contact EHS if perchloric acid is discolored or if crystals have formed around the neck or cap.Waste Disposal: Dispose of waste materials in a solid hazardous waste container.Include contaminated wipes, gloves, or clothing in solid waste containers. Do not put in regular trash.Do not mix perchloric acid with any other wastes. Clearly label waste.What to do if exposed: If inhaledRemove to fresh air. If not breathing, give artificial respiration. Avoid mouth contact. If breathing is difficult, give oxygen. Seek medical attention immediately (Call 911).In case of skin contactImmediately flush skin with plenty of water for at least 15 minutes while removing any contaminated clothing and shoes. Seek medical attention immediately (Call 911). In case of eye contactImmediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Seek medical attention immediately (Call 911).Spill Procedure:Incidental (small) spill: Call x-3316 and notify EHS personnel for assistance.Large spill: Call x-3316 and notify EHS personnel for assistance.Training and medical monitoring of personnel: Hazardous Waste Generator Training, Laboratory Safety Training, and Perchloric Acid Training with EHS.Lab Specific Training provided by supervisor that covers: safety expectations, PPE use and storage, SOPs, and emergency response.I have read and understand this SOP. I agree to fully adhere to its requirements.LastFirstCWIDSignatureDate ................
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