Molecular formular：C₆H₈O₇.H2O
1.Quality index (BP98 Version)
Solution outview conditions   Comply with the test
Readily carbonsiable substances   Comply with the test
Oxalate 　　　　　　　　＜ PPM 350
sulphate　　　　　　　　＜ PPM 150
Heavy metals　　　　　　＜ PPM 10
Water　 　　　　　　　　＜ ％ 1.0
Vitriol ash　　　　 　　＜ ％ 0.1
Bacillary endotoxin　 　＜ unit／mg 0.5
Al　　　　　　　　　　　＜ PPM 0.2
Content ％ 99.5-101
2.Quality index (BP93 Version)
Description:    White Crystals
                                   STANDARDS                 RESULT
Solubility:                  Comply With The Test            Comply With The Test
Sample liquid transparency,
color and luster:            Comply With The Test            Comply With The Test
Barium:                      Comply With The Test            Comply With The Test
Ca                                not exceed PPM 200  
Heavy metal                       not exceed PPM 10   
Fe                                not exceed PPM 50  
Chloride                          not exceed PPM 50   
Oxalate                           not exceed PPM 350  
sulphate                          not exceed PPM 150  
Readily carbonisable substances   not exceed standard not exceed standard
Water                             not exceed %  7.5-9.0  
Vitriol ash                       not exceed % 0.1  
Content %                         99.50-101.00  
Arsenic                          not exceed PPM 1   
 Usage:
This product is made firstly through fermented starch, and then refined by Calcium Carbonate. It is a sort of important chemical raw material, widely used in foodstuffs, medicine, chemistry, leather, printing, nonpoisonous electroplate, atom energy and other industries.