• Calcium Hydroxide (Lime), 500g
  • Calcium Hydroxide (Lime), 500g
click on thumbnail to zoom
Chemical Grade: Lab
Formula: Ca(OH)2
CAS: 1305-62-0
U.S. DOT: Not Regulated.
Get the SDS: Download
Return Policy: See Below.
Discount: Buy at least 12, save 15%
Cat No. - NC-8606
Price: $10.95


Also known as hydrated lime, our lab grade calcium hydroxide is a white crystalline powder. It is slightly soluble in water, soluble in acids, insoluble in alcohol.

Solutions are weakly basic with a solubility of only 0.2g/100ml water. Limewater is a clear, saturated aqueous solution of calcium hydroxide. It reacts readily with carbon dioxide (CO2) forming calcium carbonate.

A mixture of gases can be tested for the presence of CO2 by shaking it with limewater in a clear container. A cloudy calcium carbonate precipitate forms if CO2 is present.

Calcium hydroxide has a number of uses in metallurgy, paper and pulp manufacturing, chemical synthesis and water treatment.


For chemical quality assurance our chemicals are "factory fresh" from qualified industrial chemical suppliers. To ensure top quality we CANNOT ACCEPT RETURNS on chemical purchases, even if the container is unopened.


Chemicals with hazard fees are limited to the 48 contiguous U.S. states. Ground-only (No-Fly) chemicals are limited to the 48 contiguous U.S. states and Canada.


Certificates of Analysis for chemicals are available upon request. Use our request page at this link