Vitamin C for Food Additive or Pharmaceutical Grade (Coated 97%)

• Packaging Material: Paper
• Storage Method: Normal
• Shelf Life: >12 Months
• Type: Antioxidant
• Resource: Chemosynthesis
• Shelf Time: 2 Years
• Model NO.: Coated 97%
• Storage: Keep in Cool, Dry and Closed Place
• Molecular Formula: C6h8o6
• Transport Package: 25kg Carton or Fiberdrum With 2 Layers of PE Liner
• Specification: Bp2008/Usp31
• 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) 97.5- 98.0%

Fineness: A. Through 20 Mesh 98% b. Through 100 Mesh 25%

Microbiology Max. 500aerobe/g Max. 100 fungus/g

The absence of E. Coli

Storage: Kept in cool, dry and closed place

Shelf-life: 2 years

TEM	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
Mercury	≤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