1.02161
Calcium sulfate dihydrate
precipitated for analysis EMSURE®
别名:
Calcium sulfate dihydrate
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关于此项目
经验公式（希尔记法）:
CaO4S · 2H2O
化学文摘社编号:
分子量:
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
Quality Level
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 %
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
存储类别
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 1021619025 | 04022536030319 |
| 1021610500 | 04022536030296 |