|
Element Index
Cadmium
Calcium
Carbon
Cerium
Chlorine
Chromium
Cobalt
Copper
Hydrogen
Chemical's truth
|
Ricin is a natural poison extracted from the castor oil bean with a quoted LD50 of 20,000 ng/kg. |
|
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
|
|
Calcium sulfate, anhydrous
CAS no: 7778-18-9 Formula: CaSO4 Molecular weight: 136.142
Physical Data
Appearance: Orthorhombic crystals
|
Melting point: 1460°C
Boiling point: -
|
Density: 2.96 g/cm3
Solubility: 0.205 g/100 g H2O
Solubility product, Ks: 4.93 x 10-5
|
|
|
Thermodynamic Data
Enthalpy of formation: -1434.5 kJ/mol
Gibbs energy of formation: -1322 kJ/mol
|
Entropy: 106.5 J/mol K
Heat capacity: 99.7 J/mol K
|
|
|
Production and preparation
Natural form is known as anhydrite, anhydrous sulfate of lime or anhydrous gypsum.
|
|
|
Behavior and Chemical Properties
|
|
History and Uses
|
|
Hazard, Storage and Handling
|
|
(Last update: March 2003) |
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
|
|
