|
Physical and Chemical Properties
|
|
Physical State
|
Hygroscopic white powder, odorless
|
|
Melting Point
|
880-888 °C
|
|
Boiling Point
|
1100 °C (Decomposes)
|
|
Specific Gravity
|
2.66-2.75
|
|
Solubility in Water
|
Soluble
|
|
PH
|
Aqueous solution is neutral
|
|
NFPA Ratings
|
Health: 1; Flammability: 0; Reactivity:0
|
|
Stability
|
Stable under ordinary conditions
|
|
|
|
|
Applications
|
|
Synthetic detergents; making
kraft paper, paperboard, glass; textile dyeing and as a raw material for
the production of various chemicals
|
|
Normal Grade
|
|
Assay
|
99% Min
|
|
|
Water insolubility
|
0.05% Max
|
|
|
Calcium magnesium
|
0.15% Max
|
|
|
Chloride
|
0.35% Max
|
|
|
Fe
|
0.002% Max
|
|
|
Water
|
0.10% Max
|
|
|
Whiteness
|
82% Min
|
|
|
|
|
|
Reagent
Grade
|
|
|
|
Appearance
|
White Crystal
|
|
|
Assay (Na2SO4)
|
>99.00%
|
|
|
PH (50g/L Liquor, 25ºC
|
5.00-8.00
|
|
|
Clarity
|
Qualified
|
|
|
Water Insoluble
|
<0.005%
|
|
|
Loss on Drying
|
<0.20%
|
|
|
Chloride (Cl)
|
<0.005%
|
|
|
Phosphate (PO)
|
<0.001%
|
|
|
N
|
<0.0005%
|
|
|
K
|
<0.01%
|
|
|
Fe
|
<0.005%
|
|
|
Heavy Metal as Pb
|
<0.005%
|
|
|
|
|
|
