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
|
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
|
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
|
---
|
---
|
Email: | ![]() |