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?? ???? ????? ???? ???? ?????

     ????

 

??????

 

 

????????

???

Anhydyous sodium sulphite

???

Na2SO3

???

126.04

??

?? ??? ??, ?? 2.633, ?? ??, ??? ??, ???? ????? ?? ?? ??? ????. ????? ??.

??

??, ??, ??, ????, ??, ?? ? ??? ??.

????

????

???

???

??????

???

???

??????

Na2SO3 ≥ %

98.0

97.0

96.0

97.0

?(Fe) ≤ %

0.003

0.003

0.005

0.002

? ????? ≤ %

0.01

0.02

0.03

0.05

????(Na2CO3 ) ≤ %

0.001

0.1

0.4

0.15

?????(Na2SO3) ≤ %

1.2

2.5

-

-

?????(NaCl) ≤ %

0.003

0.1

-

-

???(Pb) ≤ %

0.001

-

-

0.002

??(As) ≤ %

0.0001

-

-

-

???????≤%

0.001

-

-

0.0015

??? ??

??

-

-

??

???????????

??

-

-

??

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