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LL0170-3.8L LL0170-1L LL0170-500ML
470301-373EA 13.85 USD
470301-373 470301-375 470301-374
Chemicals for Science Education
CAS Number: 1305-62-0
Formula: Ca(OH)2
Formula Weight: 74.10
Shelf Life (months): 12
Storage: Green
Synonyms: Calcium Hydroxide Solution

Please Note: This product is designed for educational and teaching laboratories and no certificate of analysis is available.

Note: The chemical specifications for some items on this product page may differ from the specifications listed above. For more information, consult the Safety Data Sheet or contact your Ward's representative.




This disposal method is published for your convenience. You MUST have checked with your federal, state, and local regulations before using this method and these methods are only applicable for small laboratory sized quantities.

Use a lab apron, chemical resistant gloves and goggles before following the below method to dispose of hazardous waste.

 1. The concentration of the base should be 1 M or less. Dilute it to this concentration if it is more concentrated. Use a large beaker and place it in a fume hood.
  a. When dissolving a base, heat may be evolved. Ice can be used to help control the heat.
  b. Work with a small amount of base at first, and then scale up.
 2. Slowly add dilute hydrochloric acid to the base until the mixture is neutralized to about a pH of 7.
 3. Pour the final solution down the drain with at least a 20-fold excess of water.

Solution Prep

To prepare a limewater solution, add 25 g of calcium hydroxide to 750 ml of DI water. Dilute to a final volume of 1 L with DI water.