12056
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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关于此项目
线性分子式:
CaSO4 · 2H2O
化学文摘社编号:
分子量:
172.17
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
231-900-3
MDL number:
Assay:
99.0-101.0% (based on anhydrous substance)
Form:
powder
InChI key
PASHVRUKOFIRIK-UHFFFAOYSA-L
InChI
1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
SMILES string
O.O.[Ca++].[O-]S([O-])(=O)=O
grade
puriss.
assay
99.0-101.0% (based on anhydrous substance)
form
powder
quality
meets analytical specification of NF, E 516
impurities
residual solvents, in accordance, ≤0.001% heavy metals (as Pb)
loss
19.0-23.0% loss on drying, 250 °C
anion traces
chloride (Cl-): ≤100 mg/kg, fluoride (F-): ≤30 mg/kg
cation traces
As: ≤3 mg/kg, Fe: ≤50 mg/kg, Hg: ≤10 mg/kg, Pb: ≤5 mg/kg, Se: ≤30 mg/kg
Quality Level
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存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
The crystallization of calcium sulfate dihydrate.
Smith BR and Sweett F.
Journal of Colloid and Interface Science, 37(3), 612-618 (1971)
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)
Rawaa Ammar et al.
Environmental science and pollution research international, 20(12), 9014-9025 (2013-06-15)
One of the most important sources of solid waste in the Mediterranean Basin ecosystem originated from the phosphate fertilizer industries, which discharge phosphogypsum (PG) directly into aquatic environments or are stacked on stockpiles. The present study investigates metal release from
C M Belfiore et al.
Environmental science and pollution research international, 20(12), 8848-8859 (2013-06-08)
Black crusts are recognized to have been, up to now, one of the major deterioration forms affecting the built heritage in urban areas. Their formation is demonstrated to occur mainly on carbonate building materials, whose interaction with an SO2-loaded atmosphere
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