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Merck
CN

12056

Sigma-Aldrich

硫酸钙 二水合物

puriss., meets analytical specification of NF, E 516, 99.0-101.0% (based on anhydrous substance)

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About This Item

线性分子式:
CaSO4 · 2H2O
CAS号:
分子量:
172.17
EC 号:
MDL编号:
UNSPSC代码:
12352300
PubChem化学物质编号:
NACRES:
NA.21
方案:
99.0-101.0% (based on anhydrous substance)
表单:
powder

等级

puriss.

质量水平

方案

99.0-101.0% (based on anhydrous substance)

表单

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字符串

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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储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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K N Lewis et al.
Journal of materials science. Materials in medicine, 17(6), 531-537 (2006-05-13)
Calcium sulfate (CS) is one of the oldest bone graft materials still in use. Its main limitations are poor handling characteristics, poor mechanical properties, and a resorption rate that is too fast for some applications. The present study investigated the
Calcium sulfate dihydrate (gypsum) scale formation on heat exchanger surfaces: The influence of scale inhibitors.
Amjad Z.
Journal of Colloid and Interface Science, 123(2), 523-536 (1988)
The crystallization of calcium sulfate dihydrate.
Smith BR and Sweett F.
Journal of Colloid and Interface Science, 37(3), 612-618 (1971)
Kathryn A Dooley et al.
The Analyst, 138(17), 4838-4848 (2013-06-27)
In situ chemical imaging techniques are being developed to provide information on the spatial distribution of artists' pigments used in polychrome works of art such as paintings. The new methods include reflectance imaging spectroscopy and X-ray fluorescence mapping. Results from
Massimo Peruffo et al.
Physical chemistry chemical physics : PCCP, 15(6), 1956-1965 (2012-12-22)
Dissolution processes at single crystal surfaces often involve the initial formation and expansion of localized, characteristic (faceted) etch-pits at defects, in an otherwise comparatively unreactive surface. Using natural gypsum single crystal as an example, a simple but powerful morphological analysis

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