Potassium Nitrate

Potassium nitrate is a chemical compound with the formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3−.

It occurs as a mineral niter and is a natural solid source of nitrogen. Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter or saltpetre.

Major uses of potassium nitrate are in fertilizers, rocket propellants and fireworks. It is one of the major constituents of gunpowder (blackpowder) and has been used since the Middle Ages as a food preservative

 

 

Specification:

 

Identifiers

SKU:D***1

CAS number: ********1

UN number:***6

HS Code(US):
***4.*1.***0
HS Code(CN):
***4.*1.***0 (Agriculture Grade)                          ***4.*1.***0 (Industry Grade)

Properties

Molecular formula: KNO3

Molar Mass: **1.***2g/mol

Appearance: white solid

Odor: odorless

Density: 2.**9 g/cm3(*6°C)

Melting Point: **4 °C

Boiling Point: decomposes at **0 °C

Solubility in Water:

**3 g/L (0 °C)
**6 g/L (*0 °C)
***0 g/L (**0 °C)

Items                 Spec

 

Industrial Grade

Green House Grade

Purity

% ≥

*9.8

*8.0

Moisture

% ≤

0.*0

0.*0

Chloride(as Cl- )

% ≤

0.***0.*3

0.8

Insoluble matter in water

% ≤

0.*1

0.*1

Sulphate(as SO4*-)

% ≤

0.*1

 

Hygroscopicity

% ≤

0.*5

 

Iron(Fe)

% ≤

0.**3

 

K2O

 % ≥

 

*4

Nitrogen( inNitrate)

 % ≥

 

*3.5

Standard

GB******2

GB********8

Particle Size(mm)

Crystal Power, 0.**2.5 , **3 , **5 , 0.**5