Chemical formula: C6H8O7

Mol.Weight: 192.13

Einecs:201-069-1

CAS number: 77-92-9

No.

Item

Unit

BP2014

USP37

E330

FCC8

GB1987-

Taihe

2007

Standard

1

Characters

Colorless crystals or granulars, white crystalline powders

2

Identification

Pass Test

3

Clarity&Color of Solution

Pass Test

Pass Test

/

/

/

Pass Test

4

Light Transmittance

%

/

/

/

/

≥96%

≥96%

5

Assay

%

99.5-100.5

99.5-100.5

≥99.5

99.5-100.5

99.5-100.5

99.5-100.5

6

Moisture

%

≤1.0

≤1.0

≤0.5

≤0.5

≤0.5

≤0.5

7

Readily Carbonisable

Not exceeding

Not exceeding

Not exceeding

Not exceeding

≤1.0

Not exceeding

Substances

standard

standard

standard

standard

standard

8

Sulphated Ash

%

≤0.1

≤0.1

≤0.05

≤0.05

≤0.05

≤0.05

9

Sulphate

ppm

≤150

≤150

/

/

≤100

≤100

10

Chloride

ppm

/

/

/

/

≤50

≤50

11

Oxalate

ppm

≤360

≤360

≤100

Pass Test

≤100

≤100

12

Calcium

ppm

/

/

/

/

≤200

≤200

13

Iron

ppm

/

/

/

/

≤5

≤5

14

Aluminum

ppm

≤0.2

≤0.2

/

/

/

≤0.2

15

Arsenic

ppm

/

/

≤1

/

≤1

≤1

16

Lead

ppm

/

/

≤0.5

≤0.5

≤0.5

≤0.5

17

Mercury

ppm

/

/

≤1

/

/

≤1

18

Heavy Metals

ppm

≤10

≤10

≤5

/

/

≤5

19

Bacterial Endotoxins

IU/mg

≤0.5

Pass Test

/

/

/

≤0.5

20

Tridodecylamine

ppm

/

/

/

≤0.1

/

≤0.1

21

Volatile Organic

/

/

Pass Test

/

/

Pass Test

Impurities

22

Water Insoluable

/

/

/

/

Pass Test

Pass Test

Substance

Particle Size

12-40mesh, 30-100mesh

Shelf life

Two years

25kg net kraft paper bag,

24MT/20'fcl, without pallet;

Packing

25kg net kraft paper bags,

22MT/20'fcl, palletized;

500kg/1000kg net big bag,

20MT/20'fcl palletized.

Storage

Store in cool, dry place in well-closed containers