Appearance

White crystal or powder, odorless and a little sweat

Specific rotation

+52~53.5degree

Acidity (ml)

1.2max

De-Equivalent

99.5%Min

Chloride, %

0.02max

Sulphate, %

0.02max

Insoluble matter in alcohol l

Clear

Sulfite and soluble starch

Yellow

Moisture, %

9.5max

Ash, %

0.2max

Iron, %

0.002max

Heavy metal, %

0.002max

Arsenic, %

0.0002max

Color dots, cfu/50g

50max