|
Physical and Chemical Properties
|
|
Physical
State
|
Odorless, Colorless to
White, Hygroscopic Solid
|
|
Melting
Point
|
328 °C
|
|
Boiling
Point
|
520 °C (Sublimes)
|
|
Specific
Gravity
|
1.53
|
|
Solubility
in Water
|
28.3 g/100 ml at 25 C
|
|
PH
|
5.0 (10% sol at 25 C)
|
|
Vapor
density
|
1.9
|
|
NFPA
Ratings
|
Health: 1; Flammability: 0; Reactivity:0
|
|
Flash
Point
|
Not considered to be a fire hazard
|
|
Stability
|
Stable under ordinary conditions
|
|
|
|
|
Applications
|
|
Electrolyte
in dry cells; pickling agent in zinc coating and tinning; Soldering
fluxes to remove oxide coatings from metals, Improving the adhesion of
the solders.
|
|
Sales Specification
|
|
Treated Material
|
|
Appearance
|
White
crystal, free flowing
|
|
Assay
|
99.5%
Min
|
|
Moisture
|
0.5%
Max
|
|
Sodium
Chloride
|
0.2%
Max
|
|
Fe
|
0.001%
Max
|
|
Heavy
Metal as Pb
|
0.0005%
Max
|
|
Residue
after ignition
|
0.05%
Max
|
|
Substance
insoluble in water
|
0.02%
Max
|
|
Sulfate
|
0.02%
Max
|
|
Loss on
drying
|
0.4%
Max
|
|
Arsenic
|
2 PPM
Max
|
|
Phosphate
|
N/D
|
|
PH
Value
|
4.20
– 5.80
|
|
Anti-caking
agent: n-Octadecy lamine, Molecular Formula: CH3(CH2)17NH2
|
|
|
|