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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 314 trusted manufacturers and 300 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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1185 Catalyst and Auxiliary items

(Dimethylsilylene)bis(2-methyl-4-phenylindenyl)zirconium dichloride

CAS No: 158515-16-3

Formula: C34H32Cl2SiZr-2

Categories: Catalyst and Auxiliary > Polymer

[Bis(trifluoromethanesulfonyl)imidate](triphenylphosphine)gold(I),98%

CAS No: 866395-16-6

Formula: C18H15P.C2AuF6NO4S2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Light purple powderMore

2-(dicyclohexylphosphino)-4'-(N,N-dimethylamino)-1,1'-biphenyl

CAS No: 1185899-00-6

Formula: C26H36NP

Categories: Catalyst and Auxiliary > Polymer

TETRAKIS(ETHYLMETHYLAMINO)TITANIUM

CAS No: 308103-54-0

Formula: C12H32N4Ti

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

chloronickel,2-methanidylprop-1-ene

CAS No: 12145-60-7

Formula: C8H14Cl2Ni2

Categories: Catalyst and Auxiliary > Polymer

Rhodium(1+), [(1,2,5,6-η)-1,5-cyclooctadiene][(2R,2′R,5R,5′R)-1,1′-(1,2-ethanediyl)bis[2,5-diphenylphospholane-κP]]-, tetrafluoroborate(1-) (1:1)

CAS No: 528565-84-6

Formula: C42H48P2Rh.BF4

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(+)-Medioresinol

CAS No: 40957-99-1

Formula: C21H24O7

Categories: Catalyst and Auxiliary > Polymer

FC 170C

CAS No: 29117-08-6

Formula: (C2H4O)nC12H10F17NO3S

Categories: Catalyst and Auxiliary > Polymer

614 Catalyst and Auxiliary Suppliers

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Ruthenate(2-), hexachloro-, potassium (1:2), (OC-6-11)-

CAS No: 23013-82-3

Formula: Cl6Ru.2K

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

2-(Dicyclohexylphosphino)-1,1-diphenyl-1-propene,Dicyclohexyl(1-methyl-2,2-diphenylvinyl)phosphine

CAS No: 384842-24-4

Formula: C27H35P

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

12,12'-Bis(diphenylphosphino)-9,9',10,10'-tetrahydro-11,11'-bi-9,10-ethenoanthracene, min. 98% CATPHOS

CAS No: 1020670-88-5

Formula: C56H40P2

Categories: Catalyst and Auxiliary > Polymer

2-{Bis[3,5-bis(trifluoromethyl)phenyl]phosphino}-3,6-dimethoxy -2′,4′,6′-triisopropyl-1,1′-biphenyl 95%

CAS No: 1160861-60-8

Formula: C39H37F12O2P

Categories: Catalyst and Auxiliary > Polymer

Massoniresil

CAS No: 96087-10-4

Formula: C20H24O8

Categories: Catalyst and Auxiliary > Polymer

Formaldehyde-resorcinol copolymer

CAS No: 24969-11-7

Formula: (C6H6O2.CH2O)x

Categories: Catalyst and Auxiliary > Film Forming

A type of phenol-formaldehyde resin. Permanently fusible; soluble in water, ketones, and alcohols. By dissolv- ing and adjusting the pH to 7, an adhesive base is formed. These adhesives can be used whenever phe- nolics are used and where fast or room-tempMore

Ethyl phthalyl ethyl glycolate

CAS No: 84-72-0

Formula: C14H16O6

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Liquid with slight odor.Solubility in water 0.018% by weight; miscible with most organic solvents. Combustible. The empirical formula of ethyl phthalyl ethyl glycolate is C14H16O6. Its structural formula is 1-(COOC2H5)-2- (COOCH2COOC2H5)C6H4. It is insoluble in water.More

Ethylene glycol-succinic acid copolymer

CAS No: 25569-53-3

Formula: (C4H6O4.C2H6O2)x

Categories: Catalyst and Auxiliary > Polymer

white crystals or granulesMore

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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