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Merck
CN

21244

Sigma-Aldrich

Calcium sulfate dihydrate

BioUltra, ≥99.0% (KT)

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About This Item

Linear Formula:
CaSO4 · 2H2O
CAS Number:
Molecular Weight:
172.17
EC Number:
MDL number:
UNSPSC Code:
12352200
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product line

BioUltra

Assay

≥99.0% (KT)

impurities

insoluble matter, passes filter test

pH

5.0-7.5 (25 °C, 0.01 M in H2O)

solubility

H2O: 0.01 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Li: ≤5 mg/kg
Mg: ≤200 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤20 mg/kg
Sr: ≤200 mg/kg
Zn: ≤5 mg/kg

λ

0.01 M in H2O

UV absorption

λ: 260 nm Amax: 0.015
λ: 280 nm Amax: 0.010

SMILES string

O.O.[Ca++].[O-]S([O-])(=O)=O

InChI

1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2

InChI key

PASHVRUKOFIRIK-UHFFFAOYSA-L

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