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Quality standard: GB6009-92
Molecular formula: Na2SO4
CAS NO: 7757-82-6
Appearance: White crystalline granules
Uses: Used as raw material of synthetic detergent, vinylon, dye, glass, paper making and inorganic salt industry.
Packing: 25kg, 50kg in plastic woven bag, lined with PE bag.
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Index Item
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Index
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Ⅰ
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Ⅱ
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Ⅲ
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TOP-GRADE
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FIRST-GRADE
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FIRST-GRADE
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Qualified product
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| Sodium sulphate (Na2SO4) Assay% ≥ |
99.3
|
99.0
|
98.0
|
95.0
|
90.0
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| Water insolubles % ≤ |
0.05
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0.05
|
0.10
|
1.0
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2.0
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| Calcium & Magnesium （Mg） % ≤ |
0.10
|
0.15
|
0.30
|
0.40
|
0.50
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| Chloride (as Cl) Assay% ≤ |
0.12
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0.35
|
0.70
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1.0
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1.5
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| Fe % ≤ |
0.002
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0.002
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0.010
|
0.040
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/
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| Moisture % ≤ |
0.10
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0.20
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0.50
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2.0
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5.0
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| Whiteness % ≥ |
80
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80
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/
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/
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/
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