Sodium sulfate anhydrous
　　Other name：Yuanming powder;anhydrous sodium sulphate;Sodium sulfate
　　CAS No.: 7757-82-6;15124-09-1
　　EINECS No.: 231-820-9
　　HS No.: 2833110000
　　Molecular Formula: Na₂SO₄
　　Molecular weight：142.04
　　1. Appearance: whiteness free flowing crystal,
　　2. Specifications:
　　2.1 Sodium sulfate anhydrous Industry Grade
　　Quality standards：GB/T6009-2003

Index	Ⅰ		Ⅱ		Ⅲ
Item	Superior product	First grade	First grade	Qualified product	First grade	Qualified product
Sodium sulfate (Na2SO4)，wt% ≥	99.3	99	98	97	95	92
Insoluble matter in Water，wt % ≤	0.05	0.05	0.1	0.2	-	-
Total Calcium and Magnesium as Mg，wt % ≤	0.1	0.15	0.3	0.4	0.6	-
Chloride as Cl，wt % ≤	0.12	0.35	0.7	0.9	2	-
Iron（Fe）, wt%≤	0.002	0.002	0.01	0.04	-	-
Moisture,wt % ≤	0.1	0.2	0.5	1	1.5	-
Whiteness (R457)， wt % ≥	85	82	82	-	-	-

　　2.2 Sodium sulfate anhydrous Feed Grade
　　Quality standards：Q/ECCE 001-2012

Item	Index
Sodium sulfate (Na2SO4)，wt% ≥	99.3
Arsenic(As) , wt%≤	0.0005
Lead (Pb) , wt%≤	0.0010
Cadmium（Cd）, wt%≤	0.0001
Fluorine（F）, wt%≤	0.050
Fineness （by 500um screen）,wt%≥	95

　　3. Packaging: Net25/50/1000kg in plastic lined woven bag, can also package according to customer request
　　4. Uses: Widely used in washing, glass, printing and dyeing, leather, paper, etc.
　　5. Storage: Stored in cool and ventilated, avoid light place.
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