Items

Specification

Appearance

White powder

Identification

A: Infrared   Absorption á 197Kñ concordant with the reference spectrum

B: A solution (1 in 20) responds to the tests for   Calcium conform to USP34

Specific   optical rotation

+25.0° ～+27.5°

Alkalinity

no pink color is   produced within 5 seconds

Loss on drying

not more than   5.0%

Heavy metals

not more than   0.002%

Heavy metals

not more than   0.002%

Lead

Ordinary   impurities

not more than   1.0%

Organic volatile   impurities

meet the   requirements

Nitrogen content  

5.7%～6.0%

Content of   calcium

8.2～8.6%