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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

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.

Application

Calcium chloride hexahydrate is a phase changing material (PCM) that is widely used in solar energy storage and building applications.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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)
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)
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)
Phase change behaviour of some latent heat storage media based on calcium chloride hexahydrate
Carlsson Bo
Solar Energy, 83(4), 485-500 (2009)
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