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Home > Catalyst and Auxiliary
According to the catalyst definition by the International Union of Pure Chemistry and Applied Chemistry (IUPAC) in 1981, a catalyst is a substance that alters the reaction rate without affecting the Gibbs free energy of the overall standard reaction. Catalysts span diverse types: liquid and solid catalysts based on state, and homogeneous versus heterogeneous catalysts based on phase state within the reaction system. In industrial processes, auxiliaries like centrifuge catalysts enhance production processes, improve product quality, or enable specific application performance. The array of auxiliaries definition is extensive, with varied performance - optimal effects stem from proper usage. ECHEMI's "Catalyst and Auxiliary" section predominantly supplies raw materials for Catalyst and Auxiliary.

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Sourcing catalyst intermediates can be complex, but ECHEMI makes it simple. Connect with 313 trusted manufacturers and 306 verified distributors offering a wide range of catalysts, including auxiliaries, centrifuge catalysts, and specialty intermediates for chemical production, pharmaceuticals, and industrial applications. Find high-quality catalysts and get competitive quotes from reliable suppliers.
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1190 Catalyst and Auxiliary items

Adipic acid-ethylene glycol copolymer

CAS No: 24938-37-2

Formula: (C6H10O4.C2H6O2)x

Categories: Catalyst and Auxiliary > Polymer

white granulesMore

2-(2,4-Dihydroxyphenyl)-4,6-bis(2,4-dimethylphenyl)-1,3,5-triazine

CAS No: 1668-53-7

Formula: C25H23N3O2

Categories: Catalyst and Auxiliary > UV Absorbers

Poly(α-methylstyrene)

CAS No: 25014-31-7

Formula: (C9H10)x

Categories: Catalyst and Auxiliary > Polymer

WHITE BEADSMore

Chloro{[(1R,2R)-(-)-2-amino-1,2-diphenylethyl](pentafluorophenylsulfonyl)amido}(p-cymene)ruthenium(II), min. 90% RuCl[(R,R)-Fsdpen](p-cymene)

CAS No: 1026995-71-0

Formula: C30H28ClF5N2O2RuS

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Acrolein cyanohydrin acetate

CAS No: 15667-63-7

Formula: C6H7NO2

Categories: Catalyst and Auxiliary > Petrochemical

Acetaldehyde, polymer with 1,3-benzenediol

CAS No: 28410-56-2

Formula: (C6H6O2.C2H4O)x

Categories: Catalyst and Auxiliary > Polymer

Combined with methine donor, it can improve the adhesive strength of rubber compound and impregnated or unimpregnated skeleton material, and can also be used alone as a tackifierMore

Crotonic acid-vinyl acetate copolymer

CAS No: 25609-89-6

Formula: (C4H6O2.C4H6O2)x

Categories: Catalyst and Auxiliary > Film Forming

Fixative and film-forming agent in hair care products.More

619 Catalyst and Auxiliary Suppliers

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C.I. Fluorescent Brightener 363

CAS No: 95078-19-6

Formula:

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Oils, galbanum

CAS No: 8023-91-4

Formula:

Categories: Catalyst and Auxiliary > Perfuming

Refer to GALANGAL ROOT. The oil is obtained by steam distillation of the dried resinous gum The “soft” or “Levant” type of galbanum is pre- ferred because it contains far more essential oil The yield is generally in excess of 15% It has a balsamic, somewhat spicy, charac- teristic odor. Galbanumoil and galbanumresinoid are produced fromthe gum-like exudate of Ferula gummosa Boiss. (syn. Ferula galbaniflua Boiss. et Buhse) (Apiaceae), growing inNorthern Iran, and Ferula rubricaulis Boiss., growiMore

gelucire 44-14

CAS No: 121548-04-7

Formula:

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Gelucire 44/14 is a potential and safe absorption enhancer for improving the absorption of poorly absorbable drugs including insulin and calcitonin by pulmonary delivery. More

Poly(butyl acrylate)

CAS No: 9003-49-0

Formula: (C7H12O2)x

Categories: Catalyst and Auxiliary > Film Forming

ChEBI: A macromolecule composed of repeating butyl propionate units.More

Frequently Asked Questions

How to choose the right catalyst for your application?

When selecting a catalyst, it is important to consider the type of reaction, operating temperature, pressure, solvents involved, and desired selectivity. Other key factors include catalyst lifetime, regeneration ability, and compatibility with your process. On ECHEMI, you can browse a wide range of catalyst and auxiliary products and compare specifications from multiple global suppliers to find the best option for your needs.

What is a catalyst?

Synonyms for catalyst include accelerator, promoter, stimulant, etc. A catalyst is a substance that speeds up a chemical reaction without undergoing any permanent changes. According to the catalyst definition, it doesn't alter the thermodynamics or the catalyst meaning of the reaction, but it lowers the activation energy required for the reaction to occur. Basically, a catalyst facilitates the reaction process and increases the conversion rate without being consumed in the reaction itself. It may exist in a variety of forms, including enzymes, metals, or complex compounds.

How does a catalyst work?

The function of a catalyst is to provide an alternative pathway for a chemical reaction to take place. It reduces the activation energy required for the reaction to begin, thus speeding up the rate of the reaction. The catalyst apex is the point at which the catalyst's effect on the reaction reaches maximum efficiency. It diminishes existing chemical bonds or establishes intermediary structures, so simplifying the reaction process, consequently expediting the production of substances. This mechanism, often utilized by catalyst companies, leads to accelerated product formation.

Are enzymes catalysts?

Yes, according to the catalyst definition, enzymes are biological catalysts. Enzymes, considered protein-based catalyst synonym, facilitate biochemical reactions within living organisms. Within defined temperature and pH parameters, enzymes function as exceedingly efficient catalysts, diminishing the activation energy necessary for reactions to occur. These auxiliaries, when integrated into biological systems, demonstrate specificity and selectivity in catalyzing particular reactions, rendering them pivotal as key catalysts across diverse biological processes.

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