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Sigma-Aldrich

Calcium chloride dihydrate

ACS reagent, ≥99%

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Empirical Formula (Hill Notation):
CaCl2 · 2H2O
CAS Number:
Molecular Weight:
147.01
EC Number:
MDL number:
PubChem Substance ID:

grade

ACS reagent

vapor pressure

0.01 mmHg ( 20 °C)

Assay

≥99%
99.0-105.0% (ACS specification)

form

powder or crystals

impurities

≤0.003% oxidizers
≤0.01% NH4OH pptd.
≤0.01% calcium chloride
≤0.01% insolubles

pH

4.5-8.5 (25 °C, 5%)

mp

176 °C (dec.) (lit.)

anion traces

sulfate (SO42-): ≤0.01%

cation traces

Ba: ≤0.005%
Fe: ≤0.001%
K: ≤0.01%
Mg: ≤0.005%
NH4+: ≤0.005%
Na: ≤0.02%
Sr: ≤0.1%
heavy metals: ≤5 ppm (by ICP)

storage temp.

room temp

SMILES string

O.O.Cl[Ca]Cl

InChI

1S/Ca.2ClH.2H2O/h;2*1H;2*1H2/q+2;;;;/p-2

InChI key

LLSDKQJKOVVTOJ-UHFFFAOYSA-L

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1 of 4

This Item
C38813130712022
Calcium chloride dihydrate puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

Sigma-Aldrich

31307

Calcium chloride dihydrate

Essential Grade
Calcium chloride dihydrate puriss., meets analytical specification of Ph. Eur., USP, FCC, E509, 99-103%, ≤0.0001% Al

Sigma-Aldrich

12022

Calcium chloride dihydrate

Essential Grade
vapor pressure

0.01 mmHg ( 20 °C)

vapor pressure

0.01 hPa ( 20 °C)

vapor pressure

0.01 hPa ( 20 °C)

vapor pressure

0.01 hPa ( 20 °C)

assay

≥99%, 99.0-105.0% (ACS specification)

assay

≥99.0%

assay

≥99%

assay

99-103%

form

powder or crystals

form

powder

form

crystalline

form

powder or crystals

impurities

≤0.003% oxidizers, ≤0.01% NH4OH pptd., ≤0.01% calcium chloride, ≤0.01% insolubles

impurities

-

impurities

≤0.003% oxidizing substances (as NO3), ≤0.005% ammonium (NH4), ≤0.01% insoluble in water, ≤5 ppm heavy metals (by ICP)

impurities

≤0.0001% Al, ≤0.001% heavy metals (as Pb), ≤0.005% free acid (as HCl), ≤0.005% free alkali (as CaO)

pH

4.5-8.5 (25 °C, 5%)

pH

5-8 (25 °C, 147 g/L)

pH

4.5-8.0 (25 °C, 5%)

pH

4.5-8.5 (25 °C, 5% in water)

General description

Calcium chloride dihydrate is a moisture resistant, cheap and commonly available calcium salt. Its efficacy as a chiral catalyst for various asymmetric organic reactions has been evaluated.

Application

Calcium chloride dihydrate may be used in combination with sodium borohydride for the asymmetric reduction of 1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-[(1S)-2-hydroxy-1-phenylethylamino]ethanone to form (1R)-1-(2,2-dimethyl-4H-1,3-benzodioxin-6-yl)-2-[(1S)-2-hydroxy-1-phenylethylamino]ethanol.
Calcium chloride dihydrate has been used as a calcium supplement for the DMEM (Dulbecco′s modified Eagle′s medium) for use in cell culture studies. It has also been used to prepare the synthetic brine solution.
It may be used in the preparation of calcium-alginate beads.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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SAFC

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SAFC

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