- Food Additives[10]
- Lactose[1]
- Starch[1]
- Monosodium Glutamate[1]
- Contact Person : Ms. Zeng Fiona
- Company Name : Zhengzhou Natural Chemical Co., Ltd.
- Tel : 86-371-68862691
- Fax : 86-371-68891652
- Address : Henan,Zhengzhou,No. 37 Yard, Huaihe East Road, Erqi District
- Country/Region : China
- Zip : 450015
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Ascorbic Acid
1 White crystal or crystalline powder. Odorless. Sour. Flash point 99. Melting point 187 ~ 192. Browned gradually by light. Dry conditions remained stable in the air, but in solution rapidly degenerate when in the presence of air. It is stable when PH value of 3.4 ~ 4.5. About 1g of this product soluble in 5ml water and 30ml ethanol.
0.5% solution PH value of 3 and 5% for 2. Insoluble in chloroform, ethyl ether, non-volatile oil and benzene. Strongly reduced and polyphenol oxidase inhibitory effect, it added to beer, fruit juice, etc. can be used as antioxidants in food.
2 APPLICATION: Nutritional supplements. Antioxidants; color agent. Enhance resistance to infectious diseases. Can be used for beer, fermented flour products, carbonated drinks, tea drinks, juice drinks, milk beverages, milk candy, canned fruit jelly, broth, children's cereal preparations, meat products, baking products.
3. Specification
Analysis Contents | Analysis Standard | Analysis Results |
Identification | Positive Reaction | Positive |
Melting Point | About 190°C | 190.7°C |
PH | 2.4-2.8 | 2.42 |
Clarity Of Solution | Clear | Clear |
Colour Of Solution | ≤BY7 | <BY7 |
Copper | ≤5ppm | <5ppm |
Heavy Metals | ≤10ppm | <10ppm |
Mercury | <0.1mg/kg
| <0.1mg/kg
|
Lead | <2mg/kg
| <2mg/kg
|
Arsenic | ≤3ppm | <3ppm |
Cadmium(Cd)
| <1mg/kg
| <1mg/kg
|
Oxalic Acid | ≤0.2% | <0.2% |
Iron | ≤2ppm | <2ppm |
Loss of Drying | ≤0.4% | <0.4% |
Sulphate Ash(Residue On Ignition) | ≤0.1% | <0.1% |
Specific Optical Rotation | +20.5°–+21.5° | +21.13° |
Mesh | 40-80 Mesh | Pass |
Organic Volatile Impurities | Pass | Pass |
Assay | 99.0%-100.5% | 99.94% |
High-quality Ascorbic Acid With the Best Price