How to Dispose of Calcium Chloride


Calcium chloride is a salt of calcium and chlorine. It is used in salt-water aquariums and on roads to melt ice. It is generally not hazardous and can be disposed of in the trash or down the drain.

Things You'll Need

  • Water
  • Drain
  • Trash
  • If calcium chloride is disolved in water, dilute it down to one percent or less (a ratio of one part calcium chloride to 100 parts water).

  • Turn on the faucet and let the water run for one minute. Pour the diluted solution down the drain and follow with water for five minutes.

  • Dispose of solid calcium chloride, in amounts less than 2 kgs (about 4.5 lbs.), in the trash. Check with local authorities for specific regulations dealing with calcium chloride. Most places have no restrictions for its disposal.

Tips & Warnings

  • Calcium chloride gives off heat when dissolved in water. Calcium carbonate can irritate eyes, skin and upper respiratory tract and can be harmful if ingested.


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