Calcium sulfate dihydrate CAS 10101-41-4

Slightly soluble in water, hydrochloric acid, nitric acid, soluble in hot sulfuric acid, insoluble in alcohol

Calcium sulfate dihydrate Basic information
Outline Agricultural application Chemical properties Uses Production method Category Flammability hazard properties Storage characteristics Extinguishing agent Professional standards
Product Name:	Calcium sulfate dihydrate
CAS:	10101-41-4
MF:	CaH6O5S
MW:	158.18
EINECS:	231-900-3
Mol File:	10101-41-4.mol
Calcium sulfate dihydrate Chemical Properties
Melting point	128°C -1.5H₂O
Boiling point	163°C -2H₂O
density	2.32
bulk density	400-600kg/m3
Fp	163°C -2H₂O
storage temp.	Store at +5°C to +30°C.
solubility	H2O: 0.01 M at 20 °C, clear, colorless
form	powder
color	White
Specific Gravity	2.32
PH	7.0 (50g/l, H2O, 20℃)(slurry)
Odor	at 100.00%. odorless
Water Solubility	2 g/L (20 ºC)
Sensitive	Hygroscopic
Merck	141,706
Solubility Product Constant (Ksp)	pKsp: 4.5
Dielectric constant	2.5（Ambient）
Exposure limits	ACGIH: TWA 10 mg/m3
Stability:	Stable. Incompatible with aluminium, strong acids.
Cosmetics Ingredients Functions	COLORANT
	OPACIFYING
	BULKING
	ABRASIVE
InChI	1S/Ca.H2O4S.2H2O/c;1-5(2,3)4;;/h;(H2,1,2,3,4);2*1H2/q+2;;;/p-2
InChIKey	PASHVRUKOFIRIK-UHFFFAOYSA-L
SMILES	O.O.[Ca++].[O-]S([O-])(=O)=O
LogP	-1.031 (est)
CAS DataBase Reference	10101-41-4(CAS DataBase Reference)
NIST Chemistry Reference	calcium sulfate(10101-41-4)
EPA Substance Registry System	Calcium sulfate dihydrate (10101-41-4)

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Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)