Vitamin C (Coated93%) Food Grade or Pharmaceutical Grade

• CAS No.: 50-81-7
• Formula: C6h8o6
• Packaging Material: Paper
• Storage Method: Normal
• Shelf Life: >12 Months
• Resource: Chemosynthesis
• Model NO.: Coated 93%
• Sotrage: Can Not Be Stored with Toxic, Corrosive, Volatile
• Appearance: White or Almost White Microencapsulation
• Delivery: Within 15after Receiving Deposit
• Payment: T/T
• Transport Package: 25kg Carton With 2 Layer of PE Liner
• Specification: GB/Tsio28001-2001
• Trademark: Haitong
• Origin: China
• HS Code: 29369000
• Production Capacity: 5, 000tons/Year

Product Description

Appearance: White or almost white microencapsulation

Odor: Odorless or almost odorless

Identification: Positive Reaction

Heavy Metals (lead) <10ppm

Arsenic <3ppm

Loss on drying (1g, silica gel, 24h) 2% max

Assay (Calculated on the dried basis) 93.0% min

Package: 25kg carton line with PE bags

Net weight: 25kg

Gross weight: 26.4kg

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
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