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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

Chloro[(R)-(+)-2,2'-bis(di-p-tolylphosphino)-1,1'-binaphthyl](p-cymene)ruthenium(II)chloride

CAS No: 131614-43-2

Formula: [C58H54ClP2Ru]+Cl-

Categories: Catalyst and Auxiliary > Polymer

Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, sulfonated

CAS No: 69011-20-7

Formula: (C10H12.C10H10.C8H8)x

Categories: Catalyst and Auxiliary > Polymer

Strong acid cation exchange resin suitable for mixed bed applications. Commonly used in concentrate refinement and sugar analysis. The resin meets the requirements of the Food Additives Regulation 21CFR173.25 of the US Food and Drug Administration.More

1,2-Bis[(2R,5R)-2,5-diisopropylphospholan-1-yl]benzene

CAS No: 136705-65-2

Formula: C26H44P2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Tripropylene glycol monopropyl ether

CAS No: 96077-04-2

Formula: C12H26O4

Categories: Catalyst and Auxiliary > Polymer

Cosolvent in water-based coatings and cleaners.More

4-(Butylamino)-2,2,6,6-tetramethylpiperidine

CAS No: 36177-92-1

Formula: C13H28N2

Categories: Catalyst and Auxiliary > UV Absorbers

Bis[rhodium(a,a,a#,a#-tetramethyl-1,3-benzenedipropionic acid)], 96%

CAS No: 819050-89-0

Formula: 2C16H22O4.Rh2

Categories: Catalyst and Auxiliary > Polymer

An effective catalyst for the amination reaction between CH bonds in the tertiary and benzylic positions.More

Ethylene-methacrylic acid copolymer

CAS No: 25053-53-6

Formula: (C4H6O2.C2H4)x

Categories: Catalyst and Auxiliary > Polymer

Molded or extruded parts requiring flexibility, tensile strength and low temperature impact and adhesion.More

DICHLORO[(R)-(+)-2,2'-BIS(DIPHENYLPHOSPHINO)-1,1'-BINAPHTHYL][(1S,2S)-(-)-1,2-DIPHENYLETHYLENEDIAMINE]RUTHENIUM (II)

CAS No: 329736-05-2

Formula: C58H48Cl2N2P2Ru

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

619 Catalyst and Auxiliary Suppliers

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Benzenemethanaminium, ar-ethenyl-N-(2-hydroxyethyl)-N,N-dimethyl-, chloride (1:1), polymer with diethenylbenzene

CAS No: 63181-94-2

Formula: (C13H20NO.C10H10.Cl)x

Categories: Catalyst and Auxiliary > Polymer

white translucent beadsMore

Ruthenium(2+), tris(1,10-phenanthroline-κN1,κN10)-, (OC-6-11)-, hexafluorophosphate(1-) (1:2)

CAS No: 60804-75-3

Formula: C36H24N6Ru.2F6P

Categories: Catalyst and Auxiliary > Polymer

(+)-1,2-BIS((2S,5S)-2,5-DIMETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM(I)TETRAFLUOROBORATE

CAS No: 205064-10-4

Formula: C26H40BF4P2Rh 4*

Categories: Catalyst and Auxiliary > Polymer

orange or red crystalline powderMore

Diphenylmethylidene(cyclopentadienyl)(9-fluorenyl)zirconium dichloride

CAS No: 132510-07-7

Formula:

Categories: Catalyst and Auxiliary > Polymer

(-)-N,N'-(1R,2R)-1,2-DIAMINOCYCLOHEXANEDIYLBIS(2-PYRIDINECARBOXAMIDE)

CAS No: 218290-24-5

Formula: C18H20N4O2

Categories: Catalyst and Auxiliary > Polymer

Tricarbonyl[(1,2,3,4,5,6-η)-1,3,5-trimethylbenzene]tungsten

CAS No: 12129-69-0

Formula: C12H12O3W

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Chemical Name:Chloro[1,3-bis(mesityl)imidazole-2-ylidene]gold(I)

CAS No: 852445-81-9

Formula: C21H24AuClN2

Categories: Catalyst and Auxiliary > Polymer

(+)-1,2-BIS((2S,5S)-2,5-DIPHENYLPHOSPHOLANO)ETHANE(1,5-CYCLOOCTADIENE)RHODIUM (I) TETRAFLUOROBORATE

CAS No: 849950-53-4

Formula: C42H48BF4P2Rh

Categories: Catalyst and Auxiliary > Polymer

CHLORO(TRIS(PARA-TRIFLUOROMETHYLPHENYL)&

CAS No: 385815-83-8

Formula: C21H12AuClF9P

Categories: Catalyst and Auxiliary > Polymer

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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