Formulae

KNO3

101.10

CAS

7757-79-1

Properties

Colorless and transparent rhombic crystals or white powder.

Uses

Mainly applied in TV kinescope glass, glass refining agent and motor light glass; compound fertilizer and foliar spray fertilizer for crop and flower; fireworks to produce purple flame and black powder in mine, ignition wire and firecracker; drugs as penicillian potassium salt in medicine industry and catalyzer; ceramic and enamel; salt bath of heat treatment, cigarette paper, concentrating agent; conservatives in salted meat and chromogen in Food industry, etc.

Packing

In 25/50/500/1000kg PP/PE bag or demanding of customer

Storage

In a cool, ventilated and dry house, away from moisture, heat or kindling. Avoid mixing with organic compound or sulphur or reducer during storage and transportation in case of explosion. Protect from the sun and rain during transportation. Carefully load and unload in case of crash.

Inspection Items

Unit

Industrial Grade

First Grade

Agricultural Grade

Purity

%≥

99.8

99.4

97.5

Moisture

%≤

0.10

0.10

Chloride(as cl-)

%≤

0.01-0.03

0.02

0.80

Sulphate(as SO42-)

%≤

0.01

0.01

Insoluble Matter in Water

%≤

0.01

0.02

Fe

%≤

0.003

Hygroscopicity

%≤

0.25

0.30

K2O

%≥

46

Nitrogen(in nitrate)

%≥

13.5

Particle Size

MM

0.2-2.5       2-5