1.02161

Calcium sulfate dihydrate

precipitated for analysis EMSURE^®

• Synonyme(s) : Calcium sulfate dihydrate
• Formule empirique (notation de Hill): CaO₄S · 2H₂O
• Numéro CAS: 10101-41-4
• Poids moléculaire : 172.17
• Numéro MDL: MFCD00149625
• Code UNSPSC : 12352302
• Numéro de classement CE : 231-900-3
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• Pureté: 99.0-102.0% (complexometric)
• Forme: solid
• Puissance: >10000 mg/kg LD₅₀, oral (Rat)
• Impuretés: ≤0.01% Substances insoluble in hydrochloric acid
• pH: 7.0 (20 °C, 50 g/L in H₂O, slurry)
• Solubilité: 2 g/L
• Densité: 2.32 g/cm³ at 20 °C
• Masse volumique apparente: 400‑600 kg/m³
• Traces d'anions: carbonate (CO₃^2-): passes test; chloride (Cl^-): ≤0.005%; nitrate (NO₃^-): passes test
• Traces de cations: Fe: ≤0.001%; K: ≤0.005%; Mg: ≤0.01%; Na: ≤0.2%; Sr: ≤0.05%; heavy metals (as Pb): ≤0.002%
• Température de stockage: 2-30°C
• InChI: 1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
• Clé InChI: PASHVRUKOFIRIK-UHFFFAOYSA-L

Description

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).

Remarque sur l'analyse

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 %

Informations légales

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

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable