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442909

Sigma-Aldrich

Calcium chloride hexahydrate

≥95%

Synonym(s):

Calcium dichloride hexahydrate

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About This Item

Empirical Formula (Hill Notation):
CaCl2 · 6H2O
CAS Number:
7774-34-7
Molecular Weight:
219.08
MDL number:
MFCD00149616
UNSPSC Code:
12352302
PubChem Substance ID:
24868038
NACRES:
NA.23
grade:
for analytical purposes
form:
solid
solubility:
219.1 g/L at 20 °C
Pricing and availability is not currently available.

grade

for analytical purposes

Assay

≥95%

form

solid

mp

30 °C

solubility

219.1 g/L at 20 °C

density

1.71 g/mL at 25 °C (lit.)

shipped in

wet ice

storage temp.

2-8°C

SMILES string

O.O.O.O.O.O.Cl[Ca]Cl

InChI

1S/Ca.2ClH.6H2O/h;2*1H;6*1H2/q+2;;;;;;;;/p-2

InChI key

QHFQAJHNDKBRBO-UHFFFAOYSA-L

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General description

Calcium chloride hexahydrate is a non-toxic salt hydrate that can be used in phase change heat storage of low temperature heat. It has a latent heat of fusion as high as 170-190 kJ/Kg and a melting temperature of 29-30°C.[1][2]

Application

Calcium chloride hexahydrate is a phase changing material (PCM) that is widely used in solar energy storage and building applications.[1][2][3][4][5]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

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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Certificates of Analysis (COA)

Lot/Batch Number
BCCM3180
BCCL0055
BCCK2210
BCCH7314
BCCG1349

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Phase change material (PCM) based thermal management system for cool energy storage application in building: An experimental study
Tyagi VV, et al.
Energy and Buildings, 51(5), 248-254 (2012)
Experimental investigations on heat transfer in phase change materials (PCMs) embedded in porous materials
Zhou D and Zhao C
Applied Thermal Engineering, 31(5), 970-977 (2011)
A novel calcium chloride hexahydrate-based deep eutectic solvent as a phase change materials
Shahbaz K, et al.
Solar Energy Materials and Solar Cells, 155(4), 147-154 (2016)
Phase change behaviour of some latent heat storage media based on calcium chloride hexahydrate
Carlsson Bo
Solar Energy, 83(4), 485-500 (2009)
Salt hydrates as latent heat storage materials: Thermophysical properties and costs
Kenisarin M and Mahkamov K
Solar Energy Materials and Solar Cells, 145(5), 255-286 (2016)
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Questions

1–2 of 2 Questions  

  1. 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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  2. 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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