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31307

Sigma-Aldrich

Calcium chloride dihydrate

puriss. p.a., ACS reagent, reag. Ph. Eur., ≥99%

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About This Item

Empirical Formula (Hill Notation):
CaCl2 · 2H2O
CAS Number:
Molecular Weight:
147.01
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NB.24

grade

ACS reagent
puriss. p.a.

Quality Level

agency

reag. Ph. Eur.

vapor pressure

0.01 hPa ( 20 °C)

assay

≥99%

form

crystalline

impurities

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

pH

4.5-8.0 (25 °C, 5%)

mp

176 °C (dec.) (lit.)

anion traces

nitrate (NO3-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤1 mg/kg
As: ≤1 mg/kg
Ba: ≤50 mg/kg
Cd: ≤5 mg/kg
Co: ≤50 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤50 mg/kg
Na: ≤50 mg/kg
Ni: ≤50 mg/kg
Pb: ≤5 mg/kg
Sr: ≤100 mg/kg
Zn: ≤5 mg/kg

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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General description

Calcium chloride dihydrate is a useful biochemical reagent.

Application

Calcium chloride dihydrate was used in the preparation of calcium-alginate beads. It may be used for the concentration of virus vectors in a protocol.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

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Concentration of viral vectors by co-precipitation with calcium phosphate.
Pham L, et al.
The journal of gene medicine, 3(2), 188-194 (2001)
George Pasparakis et al.
International journal of pharmaceutics, 323(1-2), 34-42 (2006-07-11)
The aim of the present work was to investigate the swelling behavior and the in vitro release of the antihypertensive drug verapamil hydrochloride from calcium alginate and chitosan treated calcium alginate beads. Calcium-alginate beads, chitosan-coated alginate beads and alginate-chitosan mixed
João Barroso-Batista et al.
Current biology : CB, 30(6), 1049-1062 (2020-03-07)
Members of the gut microbiota are thought to experience strong competition for nutrients. However, how such competition shapes their evolutionary dynamics and depends on intra- and interspecies interactions is poorly understood. Here, we test the hypothesis that Escherichia coli evolution
P Geetha et al.
Ecotoxicology and environmental safety, 122, 17-23 (2015-07-15)
Population explosion, depletion of water resources and prolonged droughts and floods due to climatic change lead to scarcity of pure and hygienic drinking water in most of the developing countries. Recently nanomaterials attained considerable attention as biosorbent for water purification
Avinash A Kadam et al.
Bioresource technology, 132, 276-284 (2013-02-16)
Pretreatments to sugarcane bagasse (SCB) such as CaCl2, alkali, ammonia, steam and milling showed 91%, 46%, 47%, 42% and 56% adsorption of Solvent Red 5B (SR5B); 92%, 57%, 58%, 56% and 68% adsorption of simulated dyes mixture (SDM), and 86%

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