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255548

Sigma-Aldrich

Calcium sulfate dihydrate

ACS reagent, 98%

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About This Item

Linear Formula:
CaSO4 · 2H2O
CAS Number:
Molecular Weight:
172.17
EC Number:
MDL number:
UNSPSC Code:
12352300
PubChem Substance ID:
NACRES:
NB.24

grade

ACS reagent

Assay

98%
98.0-102.0% (ACS specification)

form

powder

impurities

≤0.02% insol. dil. HCl

anion traces

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

cation traces

Fe: ≤0.001%
K: ≤0.005%
Mg: ≤0.02%
Na: ≤0.02%
Sr: ≤0.05%
heavy metals: ≤0.002% (by ICP-OES)

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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General description

Calcium sulfate dihydrate, also known as gypsum, is a hydrated form of calcium sulfate. It is used as a thermal insulator because of its low thermal conductivity.

Application


  • The effect of casing and gypsum on the yield and psychoactive tryptamine content of Psilocybe cubensis (Earle) Singer.: This research investigates the impact of calcium sulfate dihydrate on the cultivation of Psilocybe cubensis mushrooms. The study highlights the role of gypsum in enhancing yield and the content of psychoactive compounds, which is important for pharmaceutical applications (Foster et al., 2024).

  • Gypsum-Related Impact on Antibiotic-Loaded Composite Based on Highly Porous Hydroxyapatite-Advantages and Disadvantages.: The study examines the effects of calcium sulfate dihydrate on antibiotic-loaded composites. These composites are crucial for bone regeneration and infection control, providing insights into the advantages and limitations of gypsum in medical applications (Zalewska et al., 2023).

  • Organic solvent-free synthesis of calcium sulfate hemihydrate at room temperature.: This paper presents an innovative method for synthesizing calcium sulfate hemihydrate using calcium sulfate dihydrate without organic solvents. The research contributes to greener synthesis methods and sustainable material production (Reigl et al., 2024).


Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

255548-1KG:
255548-500G:
255548-100G:
255548-VAR:
255548-5G:
255548-BULK:


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Bram M Borkent et al.
The Journal of the Acoustical Society of America, 121(3), 1406-1412 (2007-04-06)
The study of cavitation inception in liquids rarely yields reproducible data, unless special control is taken on the cleanliness of the experimental environment. In this paper, an experimental technique is demonstrated which allows repeatable measurements of cavitation activity in liquid-particle
Crystallization of calcium sulfate dihydrate in the presence of some metal ions.
Hamdona SK and Al Hadad UA.
Journal of Crystal Growth, 299(1), 146-151 (2007)
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)

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