Catalysts And Auxiliaries

Catalyst refers to a substance which can change the reaction speed in a chemical reaction and whose composition and mass remain unchanged after the reaction. The catalysts that speed up the reaction are called Positive Cata-lyst and the slower ones are called Negative Cata LYST or moderators. Generally speaking, the catalyst is to correct the catalyst. These catalysts are widely used in industry, especially in organic chemical industry. They are of great significance, for example, catalysts are needed for the preparation of sulfuric acid by contact method, the hydrolysis of synthetic ammonia, esters and polysaccharides, and the hydrogenation of oils and fats. Commonly used catalysts are metals, metal oxides and inorganic acids. If the catalyst is a solid, the reactant is a gas, forming a heterogeneous catalytic reaction, this catalyst, sometimes called a catalyst or contact agent.

Auxiliaries refer to the industrial and agricultural production, especially chemical production, in order to improve the production process, improve product quality and output, or give the product a unique application performance, usually need to add some auxiliary chemicals. It is a kind of important auxiliary raw materials in chemical production, which can give the products special properties and improve the use of finished products, accelerate the chemical reaction speed and improve the yield of products, save raw materials and improve the processing efficiency. It is widely used in chemical industry, especially in organic synthesis, synthetic material processing and petroleum refining, pesticides, pharmaceuticals, dyes, coatings and other industrial sectors. By use, it can be divided into synthetic auxiliaries and processing auxiliaries. Auxiliaries used in the synthesis and polymerization of resins, fibers, rubber and other monomers are called synthetic auxiliaries, including catalysts, initiators, solvents, dispersants, emulsifiers, polymerization inhibitors, regulators, terminators, etc. Auxiliary chemicals used in the manufacture of rubber, plastic products and in the spinning and spinning of chemical fibers are called processing aids, including plasticizers, heat stabilizers, antioxidants, light stabilizers, flame retardants, foaming agents, lubricants, demoulding agents, vulcanizing agents, accelerators, softeners, anti-scorching agents. Agents, surfactants, oils, fillers and so on. Many of these additives are dangerous chemicals, such as diphenyl peroxide, azodiisobutyronitrile, hydrogen peroxide-ferrous blue, alkyl aluminum, titanium chloride and other initiators, catalysts are inflammable and explosive materials, should be stored and transported in accordance with the relevant provisions of the Regulations on the Safety Management of Chemical Hazardous Goods. Management and use.



Magnesium Granule  2mm-0.0035mm 10-400mesh   99.5%
Magnesium Granule 2mm-0.0035mm 10-400mesh 99.5%

Magnesium Granule  2mm-0.0035mm 99.5%
Magnesium Granule 2mm-0.0035mm 99.5%

Aziridine  homopolymer 99% CAS NO 9002-98-6
Aziridine homopolymer 99% CAS NO 9002-98-6

Ferric sulfate 99% CAS NO 10028-22-5
Ferric sulfate 99% CAS NO 10028-22-5

Calcium chloride dihydrate 99% CAS NO 10035-04-8
Calcium chloride dihydrate 99% CAS NO 10035-04-8

Sodium prop-2-ene-1-sulfonate 99% CAS NO 2495-39-8
Sodium prop-2-ene-1-sulfonate 99% CAS NO 2495-39-8

Sodium tripolyphosphate 99% CAS NO 7758-29-4
Sodium tripolyphosphate 99% CAS NO 7758-29-4

Dodecyl 2-methylacrylate 99% CAS NO 142-90-5
Dodecyl 2-methylacrylate 99% CAS NO 142-90-5

Dimethylsilicone oil 99% CAS NO 63148-62-9
Dimethylsilicone oil 99% CAS NO 63148-62-9

Sodium thiosulfate 99% CAS NO 7772-98-7
Sodium thiosulfate 99% CAS NO 7772-98-7

14-Bis 4-cyanostyryl benzene 99% CAS NO 13001-40-6
14-Bis 4-cyanostyryl benzene 99% CAS NO 13001-40-6

Poly vinyl alcohol  macromolecule 99%  9002-89-5
Poly vinyl alcohol macromolecule 99% 9002-89-5

Poly ethylene 99% CAS NO 9002-88-4
Poly ethylene 99% CAS NO 9002-88-4

Magnesium oxide 99% CAS NO 1309-48-4
Magnesium oxide 99% CAS NO 1309-48-4

Poly  acrylonitrile -co- butadiene  9003-18-3
Poly acrylonitrile -co- butadiene 9003-18-3

Silicon dioxide 99% CAS NO 60676-86-0
Silicon dioxide 99% CAS NO 60676-86-0

Titanium dioxide 99% CAS NO 13463-67-7
Titanium dioxide 99% CAS NO 13463-67-7

Poly acrylamide  macromolecule 99%CAS NO 9003-05-8
Poly acrylamide macromolecule 99%CAS NO 9003-05-8

Poly sodium acrylate  macromolecule 99%  9003-04-7
Poly sodium acrylate macromolecule 99% 9003-04-7

2-phenoxyethanol 99% CAS NO 122-99-6
2-phenoxyethanol 99% CAS NO 122-99-6

Sodium allysulfonate 99% CAS NO 2495-39-8
Sodium allysulfonate 99% CAS NO 2495-39-8

Trans-benzylideneacetone 99% CAS NO 1896-62-4
Trans-benzylideneacetone 99% CAS NO 1896-62-4

4-Formylmorpholine 99% CAS NO 4394-85-8
4-Formylmorpholine 99% CAS NO 4394-85-8

pentamethyldiethylenetriamine 98% CAS NO 3030-47-5
pentamethyldiethylenetriamine 98% CAS NO 3030-47-5

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