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Handling Corrosive Materials Safely: Guidelines and Procedures

Learn about common corrosive acids and bases, recognize them, understand their health and physical hazards, and follow safe handling, storage, and disposal procedures. Ensure proper use of personal protective equipment.

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Handling Corrosive Materials Safely: Guidelines and Procedures

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  1. Corrosives

  2. Common corrosive acids • Sulfuric acid – battery acid, drain opener, cleaner • Acetic acid – contained in vinegar • Hydrochloric acid – also called muriatic acid 1a

  3. Common corrosive acids • Nitric acid – also an oxidizing agent • Chromic acid • Hydrofluoric acid – a very strong acid that can be used to etch glass • Corrosive acids you work with 1b

  4. Common corrosive bases • Ammonium hydroxide – contained in household ammonia products • Potassium hydroxide – potash • Sodium hydroxide – lye 1c

  5. Common corrosive bases • Calcium hydroxide – hydrated lime • Sodium carbonate – soda ash • Corrosive bases you work with 1d

  6. Recognizing corrosives • Corrosives can be liquids, powders, pellets, or gases • Most have a strong, irritating odor 2a

  7. Recognizing corrosives • Read the label • Litmus paper test 2b

  8. Chemistry of corrosives • Can be either acids or bases • Chemically reactive • Contact with metal • pH level 3

  9. Health hazards of corrosives • Explained in MSDSs • Chemical burns to skin and the mucus membranes of your eyes, nose, mouth, and respiratory tract 4a

  10. Health hazards of corrosives • Respiratory ailments due to a build up of fluid in the lungs • Poisoning, many corrosives are toxic 4b

  11. Physical hazards of corrosives • Explained in MSDSs • Reactive with many materials. Many react with water • Combustible or flammable, can easily ignite and burn 5

  12. Engineering controls • Ventilation systems • Chemical transfer equipment 6a

  13. Personal protective equipment (PPE) • See MSDSs for PPE recommendations • You must be trained in use and demonstrate understanding 7

  14. Safe work procedures • Refer to MSDS for handling information • Take fire prevention precautions • Remove all jewelry • Use only the amount you need 8a

  15. Safe work procedures • Dispense from one container at a time • When mixing, always add the corrosive to the water • Be cautious about skin contact 8b

  16. Safe storage procedures • Refer to MSDS for storage information • Store in original container 9a

  17. Safe storage procedures • Storage areas should be well-ventilated • Inspect containers for damage prior to use 9b

  18. Proper clean-up and disposal procedures • Report all leaks and spills • Follow all instructions 10a

  19. Proper clean-up and disposal procedures • Collect waste corrosives in proper containers • Refer to MSDS for clean-up and disposal information 10b

  20. Proper first aid and emergency procedures • Refer to MSDS for first aid and emergency information • Workers overexposed to corrosives must be removed to an area with fresh air 11a

  21. Proper first aid and emergency procedures • In case of direct contact flush the affected area with plenty of clean water for at least 15 minutes • Medical attention may be necessary 11b

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