- Min.Order :1000 Kilogram
- Purity: 99
- Payment Terms : L/C,T/T,Other
Keywords
Ascorbic acid L-Ascorbic acid（C) VC
Quick Details
- Appearance:White crystalline powder
- Application:Food Additives, Pharma, Chemical
- PackAge:25KG/ carton
- ProductionCapacity:10000|Metric Ton|Year
- Storage:Kept in cool, dry and closed place
- Transportation:by sea or air
Superiority:
Established in 2008
With over 15 years in the industry, Tianjin Haitong Chemical International Trading Co., Ltd. has proven its stability and expertise in international chemical trading.
Product Diversity
We offer a wide range of chemical products, such as biochemicals, pharmaceutical materials, food additives, and fine chemicals.
Professional Team
Our high - quality import and export professionals are well - versed in international trade procedures, chemical product knowledge, and market trends. They ensure smooth operations from product sourcing to after - sales service.
Details:
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. 500 aerobe/g Max. 100 fungus/g
The 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 |
| 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 |
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