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Potassium metabisulfite
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M.F.:
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K2S2O5 |
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Standard:
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HG3-917-84 |
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Specifications:
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AR.CP |
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Technical requirements\specifications
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AR
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CP
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Special grade
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| Content≥ |
95.0
|
94.0
|
92.0
|
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Clarity test
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Up to standard
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Up to standard
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Up to standard
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|
Water insolubility≤
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0.005
|
0.02
|
0.05
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| Chloride(CL)≤ |
0.005
|
0.01
|
-
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| Fe≤ |
0.0005
|
0.002
|
-
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| As≤ |
0.0001
|
0.0003
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-
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| Heavy metal(Pb)≤ |
0.001
|
0.002
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0.002
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