Sodium Ascorbate

ITEM

STANDARD

Appearance  

White to  slightly  yellow  cr ystalline  powder

Identification  

Positive

Assay (as C 6H 7NaO 6)  

99.0  ‐  101.0%  

Specific optical  rotation

+103° ‐  +106° 

Clarity  of  solution

Clear 

pH (10%, W/V )  

7.0 ‐  8.0

Loss   on drying

=<0.25% 

Sulphate  (mg/kg)  

=< 150

Total  heavy metals

=<0.001%  

Lead

=<0.0002% 

Arsenic  

=<0.0003% 

Mercury

=<0.0001%

Zinc

=<0.0025%

Copper

=<0.0005%

Residual Solvents (as Menthanol)

=<0.3%  

Total  plate count (cfu/g)

=<1000 

Yeasts  & molds (cuf/g)

=<100  

E.coli/  g 

Negative 

Salmonella/  25g 

Negative 

Staphylococcus aureus/ 25g 

Negative