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Calcium sulfate dihydrate  Structure

Calcium sulfate dihydrate

Chemical Properties

Melting point 128°C -1.5H₂O
Boiling point 163°C -2H₂O
Density  2.32
Flash point 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
Odor at 100.00?%. odorless
PH 7.0 (50g/l, H2O, 20℃)(slurry)
Water Solubility  2 g/L (20 ºC)
Sensitive  Hygroscopic
Merck  14,1706
Solubility Product Constant (Ksp) pKsp: 4.5
Exposure limits ACGIH: TWA 10 mg/m3
Dielectric constant 2.5(Ambient)
Stability Stable. Incompatible with aluminium, strong acids.
InChIKey PASHVRUKOFIRIK-UHFFFAOYSA-L
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)

Safety Information

Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38
Safety Statements  22-24/25-36-26
WGK Germany  1
RTECS  EW4150000
TSCA  Yes
HS Code  28332990
Toxicity LD50 orally in Rabbit: > 10000 mg/kg

MSDS

Usage And Synthesis

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