Name

Content(%)

Grade

(min)

Content of impurity (max)

Na

K

Ca

Si

Fe

Al

Ni

Cl

N

Low Sodium Grade

99.95

0.01

0.001

0.01

0.004

0.002

0.005

0.003

0.005

0.01

Battery Grade

99.90

0.02

0.005

0.020

0.010

0.005

0.005

0.003

0.006

0.02

Industry Grade

99.00

0.20

0.04

0.04

0.01

0.02

High Sodium Grade

98.00

≥0.80

0.1

0.05

0.03

0.04