Sodium sulfate anhydrous

1.MF:Na2SO4
2.MW:142.04
3.Property:white granule or powder
4.High quality with 99% min. purity.
sodium sulfate
1Property
: white granular crystal or powder ,white rhombic crystal .
2Uses
: used as filler of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, dyeing auxiliary, laxative, antidote, t also can be used in fiber, lether, metallurgy, enamel and soap.
3Packing
: 25kg or 50kg or 1000kg plastic woven bag, lined with plastic bag.
4Loading weight
in 1 x20fcl:27mt
sodium sulfate
Standard
(GB6009-2003)
ITEM
STANDARD
sodium sulphate %(Na
2
SO
4
)
99.5 MIN.
99.0 MIN.
99.0 MIN.
water insolubles %
0.01 MAX.
0.05 MAX.
0.05 MAX.
Ca + Mg (as Mg) %
0.03 MAX.
0.15 MAX.
0.15 MAX.
chlorides %(Cl)
0.07 MAX.
0.35 MAX.
0.35 MAX.
iron %(Fe)
0.002 MAX.
0.002 MAX.
0.002 MAX.
moisture %
0.20 MAX.
0.20 MAX.
0.20 MAX.
whiteness %
85 MIN.
82 MIN.
82 MIN.
PH-value
6-7.5
6-8
9-11
Partickle size: Passed through on 100 mesh
around 60-65%
around 60-65%
not required
Details:

Test item
Specification
Reagent grade
Pharmaceutical grade
Appearance
Conform
Conform
Assay /%
≥99.0
≥99.0
Clarify degrees test
Conform
Conform
Water insoluble /%
≤0.005
≤0.01
Chloride (Cl)/%
≤0.0005
≤0.001
Sodium (Na)/%
≤0.005
≤0.05
Calcium (Ca) /%
≤0.02
≤0.05
Manganese (Mn)/%
≤0.001
≤0.005
Ferric (Fe)/%
≤0.0005
≤0.001
Arsenic (As) /%
≤0.0001
≤0.0002
Zinc (Zn)/%
≤0.001
≤0.002
Heavy metal (Pb)/%
≤0.0005
≤0.001