Model No.: CAS NO 512-56-1
Type: Pharmaceutical Intermediates
Name:: Trimethyl Phosphate
MP:: -46 °C
Density:: 1.197 G/mL At 25 °C(lit.)
FP:: 107 °C
Bp:: 197 °C(lit.)
Packaging: in 25kg drum
Productivity: 10000kg per month
Place of Origin: Shandong, China (Mainland)
Supply Ability: in stock
Certificate: ISO CE
HS Code: 512-56-1
1. Phosphorus oxychloride and methanol in the presence of potassium carbonate reaction of trimethyl phosphate. At the same time the reaction produces dimethyl phosphate potassium salt, the use of dimethyl sulfate reaction of trimethyl phosphate. Trimethyl phosphate crude product by washing, bleaching, dehydration, vacuum distillation of the finished product. Raw material consumption quota: phosphorus oxychloride 1094kg / t, methanol 686kg / t.
2. The methanol and potassium carbonate added to the reaction pot, cooled to 5 ° C, began dropping phosphorus oxychloride, the temperature was controlled at below 30 ℃, 2h after the addition was completed, and then stirred for 0.5h, pH control at 7 ~ 8; Then adding dimethyl sulfate, refluxing for 3h, recovering the methanol, cooling the material in the pot to below 20 DEG C, filtering by adding carbon tetrachloride, washing the filter cake with a small amount of carbon tetrachloride, combining the washing liquid and the filtrate, recovering tetrachloro Carbonized, vacuum distillation crude. The crude product plus distilled water and activated carbon, filtered anhydrous potassium carbonate dehydration, the final vacuum distillation to obtain the product. The main reaction is as follows:
Mainly used as medicine, pesticide solvents and extractants.
1> Cosmetic Raw Materials: Cosmetics is a variety of raw materials through a reasonable deployment of processing from the compound mixture. Cosmetics with a wide range of raw materials, different performance. According to the raw material properties and uses of cosmetics, can be divided into matrix materials and auxiliary raw materials in two categories. The former is a class of cosmetics in the main raw materials, cosmetics in the possession of a large proportion of the cosmetics play a major role in the role of the material. The latter is the formation of cosmetics, stability or to give color, smell and other characteristics of the role of these substances in the cosmetic formula is not used, but it is extremely important. Cosmetics are natural, synthetic or extracted from the role of different substances as raw materials, by heating, mixing and emulsification and other production processes processed from the chemical mixture.
2> Active Pharmaceutical Ingredients(API): API refers to the raw materials in the production of various types of preparations, which is the active ingredient in powder,crystal and paste for medicine use through chemical synthesis,plant extract, and preparations of biotechnology institute.It is one substance or mixture during the medicine making period, it can not be taken directly by patients.
3> Fragrance And Spices: Spice is a substance that can be scented by smelling or scented by taste, and is the raw material for the preparation of the fragrance. Spices are an important part of fine chemicals, it is composed of natural spices, synthetic spices and single fragrance.
4> Organic Raw Material: Intermediates are also known as organic intermediates. The use of coal tar or petroleum products as raw materials to produce dyes, pesticides, pharmaceuticals, resins, additives, and other intermediates.
5> Chemicals Used In Paints: Paint, the traditional Chinese name is paint. So-called coating is coated on the surface of the object that be protected or be adornment, and with the continuous film coating to form strong adhesion, usually in resin, or oil, or emulsion is given priority to, add or not add pigment, filler, add the corresponding additives, organic solvents or water preparation of viscous liquid.