NITRATE SERIOUS

Index Name

First Grade

Qualified Grade

Agricultural Grade

Actual Value

Purity (KNO3-),%               ≥

99.4

99

98

99.53

Water content (H2O),%           ≤

0.10

0.30

1.0

0.06

Chloride content (based on Cl),%   ≤ 

0.02

0.10

0.30

0.009

Insoluble substance in water,%     ≤

0.02

0.05

—

0.007

Sulfate content (based on SO42),%  ≤

0.01

—

—

0.005

Fe,%                         ≤

—

—

—

—

K2O,%                        ≥

—

—

45.5

—

N,%                          ≥

—

—

13.5

—