Acidic and Alkaline Wastes

4_13MuraticAcid  4_13Cleaner  4_13Floor

Coil Cleaners

  • May contain powerful alkaline or acidic compounds
  • Must be neutralized prior to discharge
  • Discharge to sewer system; not ground, pavement, or storm water drains
  • Dispose of unused quantities through EH&S 

Acidic Soldering Wastes 

  • May be strongly acidic even when spent, making it hazardous waste
  • If used with lead or silver solders, waste solution will also be hazardous waste
  • Collect and dispose of through EH&S 

Rust Converters 

  • Usually contain either boric acid (toxic) or a powerful alkaline compound
  • Discharge spent converter to sewer system
  • Dispose of unused portions through EH&S 

Swimming Pool Chemicals 

  • Unused portions of acids used in pool maintenance (muriatic, nitric) must be disposed of through EH&S
  • Unused portions of oxidizing compounds (bleach solutions, “pool shock,” or sodium hypochlorite) must be disposed of through EH&S

Floor and Wax Strippers

  • Contain powerful alkaline compounds when new
  • Must be used prior to discharge
  • Discharge to sewer system; not ground, pavement, or storm water drains
  • Dispose of unused quantities through EH&S 

Drain Cleaners 

  • Contain powerful alkaline compounds when new
  • Must be used prior to discharge
  • Discharge to sewer system; not ground, pavement, or storm water drains
  • Dispose of unused quantities through EH&S 

Do not accumulate acids, bases, and solvents together.  They must each have their own separate container and should be stored so that they cannot mix in case of a leak.

Spent acidic or alkaline waste should be collected as hazardous waste in a tight-sealing plastic container.  If used in conjunction with metals, the metals must be identified on the label.

Towels or rags used to apply acids or bases should be collected and disposed of separately from the spent liquids.

State sanitary sewer guidelines prohibit drain disposal of liquids with pH < 5.0.
Check SDS information or measure pH of liquid to confirm.