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223506

Sigma-Aldrich

Cloruro de calcio dihydrate

ACS reagent, ≥99%

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About This Item

Fórmula empírica (notación de Hill):
CaCl2 · 2H2O
Número de CAS:
10035-04-8
Peso molecular:
147.01
EC Number:
233-140-8
MDL number:
MFCD00149613
UNSPSC Code:
12352300
PubChem Substance ID:
329752312
NACRES:
NA.21
assay:
≥99%
99.0-105.0% (ACS specification)
grade:
ACS reagent
form:
powder or crystals
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grade

ACS reagent

Quality Level

200

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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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.[1]

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.[2]
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.[3] It has also been used to prepare the synthetic brine solution.[4]
It may be used in the preparation of calcium-alginate beads.[5]

Pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

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

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Certificados de análisis (COA)

Lot/Batch Number
MKCW9371
MKCV5078
MKCW4955
BCCK9055
MKCT8062

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A mild, enantioselective synthesis of (R)-salmeterol via sodium borohydride-calcium chloride asymmetric reduction of a phenacyl phenylglycinol derivative
Bream RN, et al.
Journal of the Chemical Society. Perkin Transactions 1, 20, 2237-2242 (2002)
Emad Tolba et al.
Molecules (Basel, Switzerland), 25(10) (2020-05-23)
There is a strong interest in cement additives that are able to prevent or mitigate the adverse effects of cracks in concrete that cause corrosion of the reinforcement. Inorganic polyphosphate (polyP), a natural polymer that is synthesized by bacteria, even
Calcium Chloride (CaCl2) as Catalyst for Asymmetric Organic Reactions.
Tsubogo T, et al.
Topics in Catalysis, 10(13), 935-939 (2014)
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
Leyu Cui et al.
Analytical chemistry, 86(22), 11055-11061 (2014-11-05)
The methylene blue (MB) two-phase titration method is a rapid and efficient method for determining the concentrations of anionic surfactants. The point at which the aqueous and chloroform phases appear equally blue is called Epton's end point. However, many inorganic
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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