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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.

Catalyst Company

Sourcing catalyst intermediates can be complex, but ECHEMI makes it simple. Connect with 314 trusted manufacturers and 302 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

BIS(T-BUTYLCYCLOPENTADIENYL)HAFNIUM DICHLORIDE

CAS No: 33010-55-8

Formula: C18H26Cl2Hf 10*

Categories: Catalyst and Auxiliary > Polymer

DIETHYLENEGLYCOLMONO-METHACRYLATE

CAS No: 2351-43-1

Formula: C8H14O4

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Butyl methacrylate-dimethylaminoethyl methacrylate-methyl methacrylate copolymer

CAS No: 24938-16-7

Formula: (C8H15NO2.C8H14O2.C5H8O2)x

Categories: Catalyst and Auxiliary > Polymer

Granules are colourless to yellow tinged, the powder is whiteMore

Biotin-PEG2-Acid

CAS No: 1365655-89-5

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Benzenemethanaminium, ar-ethenyl-N,N,N-trimethyl-, hydroxide (1:1), polymer with diethenylbenzene

CAS No: 9017-79-2

Formula: (C12H18N.C10H10.HO)x

Categories: Catalyst and Auxiliary > Polymer

Polypropylene glycol monomethacrylate

CAS No: 39420-45-6

Formula: (C3H6O)nC4H6O2

Categories: Catalyst and Auxiliary > Film Forming

Poly(2-ethylhexyl methacrylate)

CAS No: 25719-51-1

Formula: (C12H22O2)x

Categories: Catalyst and Auxiliary > Polymer

ChEBI: A macromolecule composed of repeating 2-ethylhexyl 2-methylpropanoate units.More

Dimethylammoniumdichlorotri(mu-chloro)bis[(S)-(-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl]diruthenate(II)

CAS No: 199541-17-8

Formula: 2C44H32P2.C2H7N.Cl.Cl3Ru2.ClH

Categories: Catalyst and Auxiliary > Polymer

616 Catalyst and Auxiliary Suppliers

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(-)-1,2-BIS((2S,5S)-2,5-DIMETHYLPHOSPHOLANO)ETHANE

CAS No: 136779-26-5

Formula: C14H28P2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(+)-1,2-BIS((2R,5R)-2,5-DIMETHYLPHOSPHOLANO)ETHANE

CAS No: 129648-07-3

Formula: C14H28P2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Clear colorless oily liquidMore

Glycolic acid polymer

CAS No: 26124-68-5

Formula: (C2H4O3)x

Categories: Catalyst and Auxiliary > Polymer

intrinsic viscosity 1.30-1.60More

Poly(2-hydroxyethyl methacrylate)

CAS No: 25249-16-5

Formula: (C6H10O3)x

Categories: Catalyst and Auxiliary > Binding Agent

ChEBI: An acrylate macromolecule, composed of repeating 2-hydroxyethyl 2-methylpropanoate units.More

Bis[di-tert-butyl(4-diMethylaMinophenyl)phosphine]palladiuM(0), Pd 16.7%

CAS No: 1233717-68-4

Formula: C32H56N2P2Pd

Categories: Catalyst and Auxiliary > Polymer

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

CAS No: 212143-23-2

Formula: C58H48Cl2N2P2Ru

Categories: Catalyst and Auxiliary > Polymer

[1,1′-Biphenyl]-3-sulfonic acid, 2′-(dicyclohexylphosphino)-2,6-dimethoxy-, sodium salt (1:1)

CAS No: 870245-75-3

Formula: C26H35O5PS.Na

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

YTTERBIUM(III)TRIFLATEHYDRATE,99.90%

CAS No: 252976-51-5

Formula: C3H2F9O10S3Yb

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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