Vitamin C (93% Coated BP2008/USP31)

• Environmental Protection: Yes
• Color: White
• Classification: Vitamin
• Function: Nourishing and Balancing Nutrition
• Appearance: Powder
• Fuction: Improve Memory or Sleep
• Model NO.: BP2008/USP31
• Delivery Time: Within 15days After Receiving Deposit
• Shelf Time: 2years
• Transport Package: 25kg Carton or Fiberdrum With 2 Layers of PE Liner
• Trademark: OEM
• Origin: China
• HS Code: 29369000
• Production Capacity: 5, 000tons/Year

Product Description

Appearance: White or almost white granular pass
Odor: Odorless or almost odorless
Identification: Positive Reaction
Heavy Metals (lead) <10ppm
Arsenic <3ppm
Loss on drying((1g, silica gel, 24h) 0.15% max
Residue on ignition 0.1% max
Assay (Calculated on the dried basis) 92.0- 94.0%
Fineness: Through 20 Mesh &ge 98% b. Through 100 Mesh 25%
Microbiology Max. 500aerobe/g Max. 100 fungus/g
Absence of E. Coli
Storage: Kept in cool, dry and closed place
Shelf-life: 2 years

ITEM	STANDARD
Appearance	White or  almost  white crystal  or  crystalline powder
Identification	Positive
Melting point	191 °C  ~  192°C
pH (5%,  w/v)	2.2 ~   2.5
pH (2%,w/v)	2.4 ~   2.8
Specific optical  rotation	+20.5°  ~  +21.5°
Clarity  of  solution	Clear
Heavy metals	≤0.0003%
Assay (as C 6H 8O6, %)	99.0  ~  100.5
Copper	≤3 mg/kg
Iron	≤2 mg/kg
Mer cury	≤1 mg/kg
Arsenic	≤2 mg/kg
Lead	≤2 mg/kg
Oxalic acid	≤0.2%
Loss   on drying	≤0.1%
Sulphated ash	≤0.1%
Residual solvents (as methanol)	≤500 mg/kg
Total  plate count (cfu/g)	≤1000
Yeasts  & molds (cfu/g)	≤100
Escherichia.  Coli/g	Absence
Salmonella/  25g	Absence
Staphylococcus aureus/ 25g	Absence