Items

Standards

Results

Appearance

A white crystalline powder,odorless

conform

Assay (on the dried basis)

99.0%~101.0%

99.3%

Identification(Infrared absorption)

Clear and colorless

conforms

Chloride

≤0.011%

<0.010%

Sulfate

≤0.010%

<0.010%

Ammonium

≤0.02%

<0.015%

Iron

≤ 10ppm

<8ppm

Related substances

≤0.2%;

<0.2%

Loss on drying

≤0.20%(105℃，2 hours)

0.06%

Residue on ignition

≤0.1%

0.07%

PH

4.1~5.6

5.1

Total plate count

NMT 1000/g

60/g

Mold

NMT 100/g

<10/g

Yeast

NMT 100/g

<10/g

E.Coli

Negative/10g

Not found

Salmonella

Negative 25/g

Not found