potassium nitrate

MF: KNO3
MW: 101.1
Properties and applications:
Potassium Nitrate is colorless crystal or white powder. It is easily soluble in the water,and the liquid ammonia but insoluble in anhydrous alcohol. It can not deliquesce in the air.As strong oxidizer,it will burn and explode when mixing with organics. It is mainly applied in TV glass, glass refining agent and motor light glass;compound fertilizer and foliar spray fertilizer; fireworks and black pouder; drugs and catalyzer; ceramic and enamel;salt both of heat treatment, cigarette paper; concentrating agent;etc.

Standard: GB1918-98 & QB

Inspection ltem Unit
Fine.G.
Lnd.G.
Agri.G.
Ceranic.G.

Assay
%>=
99.8
99.6
99
96

Moisture
%<=
0.10
0.10
0.10
0.10

Chloredes
%<=
0.02
0.03
0.03
0.08

Water-insolubles
%<=
0.01
0.01
0.02
0.15

Sulphates
%<=
0.015
0.02
–
–

Iron
%<=
0.003
0.01
–
0.003

Potassium Oxide
%>=
–
–
46.0
44

Nitrogen
%>=
–
–
13.5
13.5

Sodium
%<=
–
–
–
0.007

Sodium Oxide
%<=

7757-79-1