Charactenstics

White or off-white powder

Complies

Identification

Complies

Complies

Solution

Complies

Complies

(10% ,Water)PH

1.0~1.4

1.3

Loss on drying

≤1.5%

0.85%

Chlorides

7.5%-7.9%

7.63%

Cadmium

≤3ppm

ND

Lead

≤3ppm

1.0ppm

Arsenic

≤3ppm

ND

Mercury

≤3ppm

0.2ppm

Thiamine substances

≤1.5%(532-40-1)

1.1%

Thiamine hydrochloride

≤0.5%

0.1%

Free phosphate

≤1.0%

0.3%

Sulphate

≤0.01%

ND

Related substances

≤1.5%

0.5%

GC

Etanol≤0.5%

0.1%

Assay

≥98.0%

98.6%