Sodium Sulphate Anhydrous 1.High quality with 99% min. purity. 2.High whiteness with 85 min. 3.Good quality with excellent

[New standard]: GB/T6009-2003

[Product classification]:   Industrial anhydrous sodium sulfate are classified into three types according to it use:   Type I: Mainly used for synthesis of detergent and vinylon.   Type II: Mainly used in industries such as dye, glass and paper.   Type III: As industrial raw material for inorganic salts.     1.Appearance: the grade A products of both type I and type II should be white crystalline granules with no aggregation and no mechanical impurities.   2.Industrial anhydrous sodium sulfate should meet the following requirements:

Item	Value
	Type I	Type II
	Grade A	Grade A
sodium sulfate content, Na2SO4 %>	99.1	98.3
water insoluble substance %<	0.04	0.08
calcium and magnesium content (in Mg), %<	0.10	0.25
chloride content (in CL), %<	0.25	0.60
iron(Fe) content, %<	0.0015	0.008
moisture, %<	0.10	0.30
whiteness, % min	86	80

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