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Corrosives

Corrosives. Common corrosive acids. Sulfuric acid – battery acid, drain opener, cleaner Acetic acid – contained in vinegar Hydrochloric acid – also called muriatic acid. 1a. Common corrosive acids. Nitric acid – also an oxidizing agent Chromic acid

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Corrosives

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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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