硫酸钙二水合物，Calcium sulfate dihydrate；puriss., meets analytical specification of NF, E 516, 99.0-101.0% (based on anhydrous substance)

等级

puriss.

质量水平

200
500

测定

99.0-101.0% (based on anhydrous substance)

形式

powder

质量

meets analytical specification of NF, E 516

杂质

residual solvents, in accordance
≤0.001% heavy metals (as Pb)

缺失

19.0-23.0% loss on drying, 250 °C

痕量阴离子

chloride (Cl^-): ≤100 mg/kg
fluoride (F^-): ≤30 mg/kg

痕量阳离子

As: ≤3 mg/kg
Fe: ≤50 mg/kg
Hg: ≤10 mg/kg
Pb: ≤5 mg/kg
Se: ≤30 mg/kg

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