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A12650 Calcium hydroxide, 95%

CAS Number

Stock No. Size Price ($) Quantity Availability
A12650-30 250g 25.20
A12650-0B 1000g 43.60
A12650-0I 5000g 180.00
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Calcium hydroxide, 95%


Chemical Properties

Formula Weight
Storage & Sensitivity
Air Sensitive. Store under Argon. Ambient temperatures.
Soluble in glycerol and acids. Slightly soluble in water.Insoluble in alcohol.


Calcium hydroxide is used as a flocculant in water and sewage treatment. It is also used in fresh water treatment to raise the pH of the water thereby controlling the corrosion of pipes. It is widely used in the production of calcium stearate. It is an active ingredient in whitewash, mortar and plaster. This compound is also used in the petroleum refining industry for the preparation of additives to oils and in the preparation of dry mixes for painting and decorating. It finds application as an antifungal and antimicrobial preservative for vegetables in storage.


Air sensitive. Incompatible with strong acids.Incompatible with maleic anhydride, phosphorous, nitroethane, nitromethane, nitorparaffins, nitropropane and strong acids.

Literature References

Shokaraneh, A.; Farhad, A. R.; Farhad, N.; Saatchi, M.; Hasheminia, S. M. Antibacterial effect of triantibiotic mixture versus calcium hydroxide in combination with active agents against Enterococcus faecalis biofilm. Dent Mater J 2014, 33 (6), 733-738.

Khor, W. C.; Rabaey, K.; Vervaeren, H. Low temperature calcium hydroxide treatment enhances anaerobic methane production from (extruded) biomass. Bioresour. Technol. 2015, 176, 181-188.

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H335

Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P312-P363-P501c

Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Call a POISON CENTER or doctor/physician if you feel unwell. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A15519

    Lithium hydroxide monohydrate, 98%
  • 12365

    Calcium carbonate, 98%
  • 12367

    Magnesium hydroxide, 95-100.5%
  • 33295

    Calcium carbonate, ACS, 99.0% min
  • 33299

    Calcium oxide, Reagent Grade

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