|
It is a clean
white
product, sold in four
grind sizes:
-
Pea
-
Rice
-
Coarse
Powder
-
Powder
|
Assay
pH
of 2% Solution
Alkalinity
as sodium Hydroxide
Sulfide
Content
Solubility
in Water
Loss
on Drying
Melting
Point |
98%
min. (as dihydrate, by iodine titration)
9.5
- 10.5
above
0.3%
None
(tested by lead acetate paper)
Should
readily make a 40% solution
20
- 24% ( Azeotropic distillation)
63°
Centigrade |
