CLASS 8 – CORROSIVES

 

Corrosives are substances which by chemical action degrade or disintegrate other materials upon contact. Corrosive materials are either acids or bases/alkalis. Corrosives cause severe damage when in contact with living tissue or, in the case of leakage, damage or destroy surrounding materials.

 

Class 8 substances can be in UN Packing Groups I, II, or III.

 

Sub-Divisions

 

There are no subdivisions within Class 8, Corrosives.

UN Packing Groups

  • Packing Group I: Materials that cause full thickness destruction of intact skin tissue within an observation period of up to 60 minutes starting after the exposure time of three minutes or less.

  • Packing Group II: Materials other than those meeting Packing Group I criteria that cause full thickness destruction of intact skin tissue within an observation period of up to 14 days starting after the exposure time of more than three minutes but not more than 60 minutes.

  • Packing Group III: Materials, other than those meeting Packing Group I or II criteria but cause full thickness destruction of intact skin tissue or exhibit a corrosion on either steel or aluminum surfaces exceeding 6.25 mm (0.25 inch) a year.

 

Commonly Transported Corrosives

  1. Acids/acid solutions

  2. Alkylphenols

  3. Amines

  4. Batteries

  5. Battery fluid

  6. Bromine

  7. Chlorides (liquid bleach, liquid chlorine)

  8. Chlorosilanes

  9. Cyclohexylamine

  10. Dyes

  11. Fire extinguisher charges

  12. Formaldehyde

  13. Flux

  14. Fuel cell cartridges

  15. Hydrofluoric acid

  16. Hydrochloric acid

  17. Hydrogen fluoride

  18. Iodine

  19. Morpholine (solvent)

  20. Nitric acid

  21. Paints

  22. Phenol (Carbolic acid)

  23. Polyamines

  24. Polysulphides (surfactants, eg. Nonyl Phenol, Nonylphenol ethoxylate, etc.)

  25. Potassium hydroxide solution

  26. Silicon tetrafluoride (water fluorination)

  27. Sludge acid

  28. Sodium Hydroxide (caustic soda)

  29. Sulfuric acid

  30. Sulphamic acid (Descalex)

  31. Sulphides