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Sodium Metabisulfite
Sodium Metabisulfite
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We have food grade and industrial grade 95%-98%
Molecular Formula:Na2S2O5
Molecule Weight:190.10
Appearance:White or light yellow crystalline powder
Quality standard:GB19831998
The detailed specifications for INDUSTRY GRADE are the following:
|
ITEM
|
INDEX
|
|
Content (such as Na2S2O5)
|
97% min
|
|
SO2
|
65% min
|
|
Iron(Fe)
|
0.005% max
|
|
Insuluble in water
|
0.05% max
|
|
PH Value
|
4.0-4.6
|
|
Arsenic (AS)
|
0.0001%
|
The detailed specifications for FOOD GRADE are the following:
|
ITEM
|
INDEX
|
|
Content (such as Na2S2O5)
|
97% min
|
|
SO2
|
65% min
|
|
Insuluble in water
|
0.05% max
|
|
PH Value
|
4.0-6.0
|
|
Arsenic (AS)
|
0.0001%max
|
|
Heavy metal (based on Pb)
|
0.001% max
|
Packing:25KG plastic woven bag
Application:
(1)Bleach agent
(2)Loose agent
(3)Antiseptic and germicide
(4)Inhibitor and freshen agent
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