Potassium Nitrate (Molecular formula:KNO3  Formula weight:101.10)

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.

Inspection Item
Unit
Optical Grade
Industrial Grade
Agricultural Grade
Ceramic Grade
Assay(KNO3)
%
99.9
99.8
98
96
Moisture
%
0.10
0.10
0.10
0.10
Chlorides
%
0.01
0.03
0.03
0.08
Water Insolubles
%
0.01
0.01
0.01
0.15
Sulphates
%
0.005
0.01
---
---
Iron
%
0.002
0.01
---
0.003
Potassium oxide
%
---
---
46.0
44
Nitrogen
%
---
---
13.5
13.5
Sodium
%
---
---
---
0.007
Sodium Oxide
%
---
---
---
0.01

Industrial Potassium Nitrate

Properties: Colorless transparent crystal or white powder

Main uses: Material for kinescope of color TV, matches, fireworks, firecracker, gunpowder, fuse, candlewick, optical glass, ceramic, medicine reagent, combustion adjuvant, catalyst, oxidant, and metal heat treatment.

Requirements of technical index:

Items
International index
Index of our factory
Top grade
First grade
Qualified products
Content of (KNO3)
99.7
99.4
99.0
99.8
Moisture
0.10
0.10
0.30
0.05
Content of (Cl-)
0.01
0.02
0.10
0.008
Water Insolubles
0.01
0.02
0.05
0.007
Content of SO4 %
0.005
0.01
---
0.005
Moisture absorption
0.25
0.30
---
0.1
Content of Fe
0.003
---
---
0.002

Packaging & Storage: 50kg in double layers woven bag with plastic liner or the demanding of customer; stored in airiness dry place, avoid rain, bump and heat, no mixed with inflammable matter.

Standard: GB1918-98

Index name
  premium grade  
  first grade  
  salable product  
KNO3
99.7
99.4
99.0
moisture
0.10
0.10
0.30
chloride( Cl )
0.01
0.02
0.10
Water insoluble matter
0.01
0.02
0.05
sulfate( SO4 )
0.005
0.01
---
Water absorption
0.25
0.30
---
Fe
0.003
---
---

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