Ascorbic Acid

CAS number: 50-81-7

Molecular formula: C6H8O6

molecular weight: 176.1241

Chemical structure: 


whats the coated coated Ascorbic Acid

Viamin C, also called ascorbic acid,  is the indispensable during the growth and propagation of human espscially animals.  It sustain normal blood-fat metabolism, cardiac function,  central nerve function and haematopoietic function. It also can promote the synthesis of various hormones in organism.  But , since the structure of VC molecule is very unstable,  it is readily destroyed and deactivated in the presence of light ,heat , damp and metal ions.  The losses of feedstuff are very great during drying , storing, processing and transporting.  Our MINSHENG Company adopts new excipients and advanced production to process the vitamin c microencapsulated , keep it isolation protection and avoid the contact with environmental factors, improve the stability.

So that it has the characteristicfs of the high temperature resistance, oxidation resistance, moisture-resistant, heat-resistant,  ultraviolet-resistant etc.


Product name:     coated Ascorbic Acid 97%
Shelf life 3 years
According to: BP2014/USP37/EP/FCC8/E300
Items Specifications Results
Appearance White or almost white,crystalline  powder or colourless crystals  A white crystalline powder
Melting point about 190℃,with decomposition 191℃
Infrared absorption spectrum infrared absorption spectrum accord with the reference spectrum of ascorbic acid CRS Meets the requirements
PH(with 5% water solution) 2.1-2.6 2.4
PH(with 2% water solution) 2.4-2.8 2.6
Appearance of solution Clarity:clear;Colour:≤BY7 Clarity:clear;Colour:<BY7
Specifi optical rotation +20.5°~ +21.5° +20.5°
Loss on drying ≤0.4% 0.05%
Impurity E ≤0.2% Meets the requirements
  Impurity C:≤0.15% Undetectable
  Impurity D:≤0.15% 0.03%
Related substance Unspecified impurities:≤0.10% Unspecified impurities:0.01%
  total inpurities:≤0.20% 0.04%
Copper ≤5.0ppm <5.0ppm
Iron ≤2.0ppm <2.0ppm
Arisenic ≤3.0ppm <3.0ppm
Lead ≤2.0ppm <2.0ppm
Mercuty ≤1.0ppm <1.0ppm
Cadmium ≤1.0ppm <1.0ppm
Heavy metals ≤10ppm Meets the requirements
Sulphated ash ≤0.1% 0.04%
Residual solvents Meets the requirements Meets the requirements
[Assay] 99.0%~100.5% 100.0%
Conclusion : The product conforms with the above analysis standard



  1. adopting the advanced techniques of micro-encapsulation and the newest coating materials, very stable quality.
  2. With high biologic availability, easy for aquatic animals and poultry to digest and absorb.
  3. Crumpling resistance, suitable for processing into powder& pellet feed.
  4. Good liquidity, easy to mix well in kinds of feeds. Premix, multi vitamin.


  1. Improving the growth and development of the animals
  2. Strengthening the immunological function , anti-disease bility, anti-stress of body reaction of animals
  3. Improving the productive and breeding capability of livestocks
  •  Usage & dose:

Recommended addition quantity per ton (accounted based on L-Ascorbic Acid)

 Shrimp: 500~800g, ocean fishes: 200~400g, freshwater fishes:100~200g,

Livestock larva or anti-stress poultry: 100~200g,

Note:ensure the fully and evenly mix with feed

Keep tightly closed in a cool,dry palce

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