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  Products

Usage:It can be used in the production of Dacron polyester; used as intermediate and modifier for pharmaceutical, pesticide and polyester.

Physicochemical properties:This product is white crystal powder. It is soluble in water.

Molecular formula:C8H5O7SNa Molecular weight:268.24 Melting point:300℃

Structural formula:

Quality index

Item

Standard requirement

Premium grade

First grade product

Qualified proudct

20% water solution

No suspended matter, no sediment clear liquid

Chromaticity,(20% water solution,platinum—cobalt )number ≦

20

20

20

40%EGChromaticity,(platinum—cobalt )number ≦

50

60

100

Absorbance ≦

0.40

Acid value,mgKOH/g

415~421

415~421

415~421

Content,% ≧

99.0

99.0

99.0

Sulfate(Counted by SO4)Content,mg/kg ≦

500

500

500

Ferrum(Fe)Content,mg/kg ≦

5

8

10

Chloride(Counted by C1)Content,mg/kg ≦

10

15

20

Moisture,% ≦

0.50

0.50

1.0

PH value

1.8~2.2

S & T:It should be stored in dry and ventilated place, and avoid moisture, sunlight and fire; Avoid to place together with other chemical products.

Packing:It is packed with polypropylene woven bag or paper bag. The net weight is 500kg, 25kg or according to customers’ demands.

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