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(2N) 99% Calcium Hydroxide
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(3N) 99.9% Calcium Hydroxide
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(4N) 99.99% Calcium Hydroxide
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(5N) 99.999% Calcium Hydroxide
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Calcium Hydroxide Properties (Theoretical)

Compound Formula H2CaO2
Molecular Weight 74.09
Appearance White Powder
Melting Point 580° C (1,076° F)
Boiling Point N/A
Density 2.24 g/cm3
Solubility in H2O N/A
Exact Mass 73.968071
Monoisotopic Mass 73.968071

Calcium Hydroxide Health & Safety Information

Signal Word Danger
Hazard Statements H315-H318-H335
Hazard Codes Xi
Risk Codes 41
Safety Statements 26-39
RTECS Number N/A
Transport Information EW2800000
WGK Germany 1

About Calcium Hydroxide

Calcium Hydroxide is a highly water insoluble crystalline Calcium source for uses compatible with higher (basic) pH environments. Calcium Hydroxide is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Calcium Hydroxide Synonyms

Calcium dihydroxide; calcium(II) hydroxide; calcium(2+) hydroxide; Kalziumhydroxid; geloeschter Kalk; Loeschkalk

Chemical Identifiers

Linear Formula Ca(OH)2
MDL Number MFCD00010901
EC No. 215-137-3
Beilstein/Reaxys No. N/A
Pubchem CID 6093208
IUPAC Name calcium dihydroxide
SMILES [OH-].[OH-].[Ca+2]
InchI Identifier InChI=1S/Ca.2H2O/h;2*1H2/q+2;;/p-2

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Elements

See more Calcium products. Calcium (atomic symbol: Ca, atomic number: 20) is a Block S, Group 2, Period 4 element with an atomic weight of 40.078. The number of electrons in each of Calcium's shells is [2, 8, 8, 2] and its electron configuration is [Ar] 4s2. Calcium Bohr ModelThe calcium atom has a radius of 197 pm and a Van der Waals radius of 231 pm. Calcium was discovered and first isolated by Sir Humphrey Davy in 1808. It is the fifth most abundant element in the earth's crust and can be found in minerals such as dolomite, gypsum, plagioclases, amphiboles, pyroxenes and garnets. In its elemental form, calcium has a dull gray-silver appearance. Calcium is a reactive, soft metal that is a member of the alkaline earth elements. Elemental CalciumIt frequently serves as an alloying agent for other metals like aluminum and beryllium industrial materials like cement and mortar are composed of calcium compounds like calcium carbonate. It is also an biologically essential substance found in teeth, bones, and shells. The name "calcium" originates from the Latin word "calics," meaning lime.


May 31, 2020
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