News

The Delivery For The Brazilian Customer Has Been Sent

ALFA provides high quality products, the most advantage price, first-class service and technical support platform of individuation to customers.

May Day Holiday Notice in 2022

Notice on labor Day holiday arrangement in 2022

The Company Held The March Happy Meeting

In April, the march Happy conference was organized by the personnel department.

The Chemical Reagent Purchased By The French Customer Has Been Sent Out.

Chemical reagent ordered by the French customer has been delivered.

Effective Regulation Of The Structure And Properties Of Hybrid Perovskites Un...

The reporter learned from the University of Science and Technology of China that the research team of Professor Zeng Jie and Associate Professor Zhou Shiming of the Hefei National Research Center f...

Current Situation Of Chemical Pharmaceutical Intermediates

At present, my country needs more than 2,000 kinds of raw materials and intermediates for chemical industry every year, and the demand is over 2.5 million tons. After more than 30 years of developm...

Physical And Chemical Properties Of Phenacetin

White shiny scaly crystal or white crystalline powder. The melting point is 137-138°C, and the refractive index is 1.571. Hardly soluble in water, slightly soluble in ether, slightly soluble in boi...

Application Of N-Tris (Hydroxymethyl) Methylglycine

​N-Tris(hydroxymethyl)methylglycine, Tricine for short, is a zwitterionic buffer used in biochemistry and molecular biology. The pH buffer range of Tricine is 7.4-8.8. It is mainly used to replace ...

Introduction To The Use Of Polyethyleneimine

Polyethyleneimine is a water-soluble polymer. Colorless or light yellow thick liquid, hygroscopic, soluble in water, ethanol, and insoluble in benzene. The water concentration of commercial product...

Composition Structure Of Polyethyleneimine

Commercial products are usually 20% to 50% aqueous solutions. The degree of polymerization used in the paper industry is about 100, and its aqueous solution is positive.

The Practical Application Of Chemical Reagent Distillation And Rectification

​Distillation and rectification are mainly used for liquids or chemical reagents that can be heated to become liquids, especially for the purification of organic chemical reagents.

Distillation Principle Of Chemical Reagents

​The main purpose of distillation is to separate volatile and semi-volatile impurities from chemical reagents containing impurities or to evaporate volatile and semi-volatile substances, leaving no...