- Product Details
Keywords
- Menadione
- 58-27-5
- Vitamin K
Quick Details
- ProName: Menadione/Vitamin K / Vitamin K3 CAS:...
- CasNo: 58-27-5
- Molecular Formula: C11H8O2
- Appearance: powder
- Application: poultry feed enhancer,hemostatic agent
- DeliveryTime: 2-4 days after payment
- PackAge: 1kg/Bag, 2kg/Bag, 25kg/Carton
- Port: Wuhan
- ProductionCapacity: 10 Metric Ton/Quarter
- Purity: 99%
- Storage: Store in sealed containers at cool and...
- Transportation: By DHL, TNT, FedEx, HKEMS, UPS
- LimitNum: 1 Kilogram
Superiority
Details
Applications:
Vitamin K3 is mainly used as poultry feed enhancer at a dosage of 1-5mg/kg.The goods can have addition reaction with sodium bisulfite to generate vitamin K3.VK3. Used as raw material of feed additives; it can mainly promote the liver synthesis of prothrombin in livestock and poultry, and promote the liver synthesis of plasma coagulation factors as a hemostatic agent.
Production:
There are two production processes. 1. Methyl naphthalene is obtained from the oxidization of chromic anhydride. 2-methyl naphthalene is dissolved in glacial acetic acid, stirred and cooled to temperature below 40 ℃. Slowly add the mixture of chromic anhydride and the same amount of water so that the temperature can be maintained at 35-40 ℃. After the completion of the addition, maintain the temperature at 40 ℃ for 0.5 h, the temperature was then raised to 70 ℃ for 45min, and further heated to 85 ℃ for 15min. Pour the reactants into a lot of water and stir continuously to precipitate out the 2-naphthoquinone. Filter and rinse the filter cake repeatedly with water, until the aqueous solution has no sour. Filter to get the 2-menenoquinone with a yield of 51%. 2-methyl naphthalene can also be made from sodium dichromate and potassium dichromate with the oxidation yield being roughly the same. 2. Cyclohexanone has cyclization reaction with butadiene to get 2-methyl naphthalene hydroquinone, followed by oxidation with chromic acid to obtain the final product. Dissolve the toluquinone in glacial acetic acid; send the butadiene to the required amount at temperature below 20 ℃; stand for 20 hours; heat to release the remaining butadiene and continue to heat to about 110 °C for refluxing of 3 hours. Then recycle 30% of glacial acetic acid through vacuum distillation and cooled to temperature below 40 ℃; slowly add the mixture of chromic acid and the same amount of water so that the temperature is maintained at 65-70 ℃. After the completion of the addition, maintain the temperature at 70-80 degree for 1h to obtain the menadione.