Item

Specification

Result

Analysis Method

Appearance

White Crystalline Powder

Conformed

USP43

Solubility

Slightly soluble in water

Conformed

USP43

Clarity & color of solution

Clear & colorless

Conformed

USP43

Odor & amp

Odorless & pale

Conformed

—

Melting point

292 °C

Conformed

USP43

Identification

The retention time of the major peakof the sample solution

corresponds to that of the standard

solution , asobtained in the assay

Conformed

USP43

Test of Sulfuric acid

No Carbonation

Conformed

USP43

Assay

99.5- 102% on the dried basis

99.95%

HPLC

Creatinine

≤100ppm

30ppm

USP43

Loss On Drying

10.5-12.0%

11.60%

USP43

Residue On Ignition

≤0. 1%

0.02%

USP43

Iron

≤10ppm

<10ppm

USP43

Sulfate

≤0.03%

Conformed

USP43

Dicyandiamide

≤50ppm

25ppm

USP43

Dihydrotriazine

≤5ppm

Conformed

USP43

Cyanide

≤1ppm

Conformed

USP43

Any unspecified impurity

≤0. 1%

Conformed

USP43

Total unspecified impurities

≤1.5%

Conformed

USP43

Total impurities

≤2.0%

Conformed

USP43

Heavy Metal

≤0.5ppm

<0.5ppm

USP43

Arsenic (As)

≤0. 1ppm

<0. 1ppm

USP43

Lead (Pb)

≤0. 1ppm

<0. 1ppm

USP43

Mercury (Hg)

≤0. 1ppm

<0. 1ppm

USP43

Cadmium (Cd)

≤0. 1ppm

<0. 1ppm

USP43

Bulk Density

≥430g/L

475g/L

—

Tapped Density

≥550g/L

860g/L

—

Total Bacterial Count

≤100cfu/g

<50cfu/g

USP43

Mould＆Yeast

≤100cfu/g

<50cfu/g

USP43

E.Coli

Negative/10g

Negative

USP43

Salmonella

Negative/25g

Negative

USP43

S.aureus

Negative/10g

Negative

USP43

Conclusion: Qualified

Country Of Origin: China

Remark: Stored in cool, dry and ventilated warehouse, and keep away from Moisture.

Person Responsible For Quality:

Ma Yan

Analyst

Yao Haiju