Customization: | Available |
---|---|
CAS No.: | 7772-98-7 |
Formula: | Na2o3s2 |
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Item
|
Photographic grade
|
Industrial grade
|
Anhydrous grade
|
Appearance
|
colorless transparent crystal
|
colorless transparent crystal
|
white powder
|
Assay
|
≥99.00%
|
≥98.5%
|
≥97.0%
|
Water Insoluble matter
|
≤0.01%
|
≤0.03%
|
≤0.03%
|
Sulfide
|
≤0.001%
|
≤0.003%
|
≤0.001%
|
Fe
|
≤0.001%
|
≤0.003%
|
≤0.005%
|
PH
|
6.5~9.5
|
6.5~9.5
|
6.5~9.5
|
Water solution reaction
|
in accordance with the test
|
in accordance with the test
|
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|
Granularity(g/g)
|
12~16
|
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|
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|
Residual AM (PPM)
|
<500<>
|
<500<>
|
<500<>
|
PH Value
|
5-14
|
5-14
|
5-14
|
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