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12056

Sigma-Aldrich

Calcium sulfate dihydrate

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

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About This Item

Linear Formula:
CaSO4 · 2H2O
CAS Number:
10101-41-4
Molecular Weight:
172.17
EC Number:
231-900-3
MDL number:
MFCD00149625
UNSPSC Code:
12352300
PubChem Substance ID:
329749608
NACRES:
NA.21
assay:
99.0-101.0% (based on anhydrous substance)
form:
powder

$123.00

Available to ship onMay 01, 2025Details

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grade

puriss.

Quality Level

200

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

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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Related Categories

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM5628
BCCJ7490
BCCC9780
BCCB8705
BCBV1390

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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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