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1.02161

Calcium sulfate dihydrate

precipitated for analysis EMSURE®

Synonym(s):

Calcium sulfate dihydrate

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Size/SKUAvailabilityPrice
500 g
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$138.00
25 kg
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$2,750.00

About This Item

Empirical Formula (Hill Notation):
CaO4S · 2H2O
CAS Number:
Molecular Weight:
172.17
UNSPSC Code:
12352302
EC Index Number:
231-900-3
NACRES:
NA.21
MDL number:
Assay:
99.0-102.0% (complexometric)
Form:
solid
Solubility:
2 g/L

$138.00


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Packaging: HDPE bottle

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Quality Segment

product line

EMSURE®

assay

99.0-102.0% (complexometric)

form

solid

potency

>10000 mg/kg LD50, oral (Rat)

impurities

≤0.01% Substances insoluble in hydrochloric acid

pH

7.0 (20 °C, 50 g/L in H2O, slurry)

solubility

2 g/L

density

2.32 g/cm3 at 20 °C

bulk density

400‑600 kg/m3

anion traces

carbonate (CO32-): passes test, chloride (Cl-): ≤0.005%, nitrate (NO3-): passes test

cation traces

Fe: ≤0.001%, K: ≤0.005%, Mg: ≤0.01%, Na: ≤0.2%, Sr: ≤0.05%, heavy metals (as Pb): ≤0.002%

storage temp.

2-30°C

SMILES string

[Ca+2].[S](=O)(=O)([O-])[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

Application


  • Acid leaching technology for post-consumer gypsum purification.: This research presents a novel method for purifying post-consumer gypsum, primarily composed of calcium sulfate dihydrate, through acid leaching, highlighting advancements in recycling and environmental management of gypsum waste (Castro-Diaz et al., 2023).

  • Gypsum-Related Impact on Antibiotic-Loaded Composite Based on Highly Porous Hydroxyapatite-Advantages and Disadvantages.: This study evaluates the influence of gypsum in antibiotic-loaded composites, offering significant findings on the biomedical applications of calcium sulfate dihydrate in drug delivery systems (Zalewska et al., 2023).

  • Organic solvent-free synthesis of calcium sulfate hemihydrate at room temperature.: Details a groundbreaking method for synthesizing calcium sulfate hemihydrate without organic solvents, contributing to greener and more sustainable chemical processes in industrial and laboratory settings (Reigl et al., 2024).

Analysis Note

Assay (complexometric): 99.0 - 102.0 %
Substances insoluble in hydrochloric acid: ≤ 0.01 %
Carbonate (CO₃): passes test
Chloride (Cl): ≤ 0.005 %
Nitrate (NO₃): passes test
Heavy metals (as Pb): ≤ 0.002 %
Fe (Iron): ≤ 0.001 %
K (Potassium): ≤ 0.005 %
Mg (Magnesium): ≤ 0.01 %
Na (Sodium): ≤ 0.2 %
Sr (Strontium): ≤ 0.05 %

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany


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Storage Class

13 - Non Combustible Solids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable



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