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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 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

AdBrettPhos Palladacycle Gen. 3

CAS No: 1445972-29-1

Formula: C56H75NO5PPdS-

Categories: Catalyst and Auxiliary > Polymer

(S)-1-{(S)-2-[2-(DICYCLOHEXYLPHOSPHINO)PHENYL]FERROCENYL}ETHYLBIS[3,5-BIS(TRIFLU

CAS No: 849925-22-0

Formula: C41H39F12P2.C5H5.Fe

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Orange powderMore

3,6,9,12-Tetraoxahexacosan-1-ol

CAS No: 39034-24-7

Formula: C22H46O5

Categories: Catalyst and Auxiliary > Emulsifying Agent

Hexanedioic acid, di-C7-9-branched and linear alkyl esters

CAS No: 68515-75-3

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Fatty acids, C15-18, tetramethylpiperidinyl esters

CAS No: 86403-32-9

Categories: Catalyst and Auxiliary > UV Absorbers

dicyclohexyl-[2-[2,6-di(propan-2-yl)phenyl]-3-methoxy-6-[(2-methylpropan-2-yl)oxy]phenyl]phosphane

CAS No: 2489243-29-8

Formula: C35H53O2P

Categories: Catalyst and Auxiliary > Polymer

[1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene]-dichloro-(3-phenylinden-1-ylidene)ruthenium,tricyclohexylphosphane

CAS No: 254972-49-1

Formula: C54H67Cl2N2PRu

Categories: Catalyst and Auxiliary > Polymer

Palladium phthalocyanine

CAS No: 20909-39-1

Formula: C32H16N8Pd

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Benzenesulfonic acid, 4-[3-(4-chlorophenyl)-4,5-dihydro-5-phenyl-1H-pyrazol-1-yl]-, sodium salt (1:1)

CAS No: 40691-09-6

Formula: C21H17ClN2O3S.Na

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Polyoxyethylene propylene glycol monostearate

CAS No: 37231-60-0

Formula: C18H36O2.(C3H6O.C2H4O)x

Categories: Catalyst and Auxiliary > Polymer

619 Catalyst and Auxiliary Suppliers

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  • buy disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate CAS NO 27344-06-5

    disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate CAS NO 27344-06-5

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  • buy disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

    disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

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  • buy disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

    disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

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  • buy Disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

    Disodium 4,4'-bis[[4-anilino-6-[(2-carbamoylethyl)(2-hydroxyethyl)amino]-1,3,5,-triazin-2-yl]amino]stilbene-2,2'-disulphonate

    $0.1/KG EXW

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N-(2-methoxy-4,6-dimethylphenyl)-3-(2-methylpiperidin-1-yl)propanamide

CAS No: 72005-58-4

Formula: C18H28N2O2

Categories: Catalyst and Auxiliary > Antioxidants

CYCLOHEXYLDI(1-ADAMANTYL)PHOSPHINE

CAS No: 415941-50-3

Formula: C26H41P

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Aluminum phosphite

CAS No: 15099-32-8

Formula: AlO3P

Categories: Catalyst and Auxiliary > Flame Retardants

Composed of aluminum cations and phosphite anions, Aluminum phosphite crystallizes in specific lattice arrangements. The white powdered material maintains stability under various environmental conditions. Limited aqueous solubility distinguishes Aluminum phosphite from corresponding phosphate salts.More

Dimethylaminoethyl methacrylate-vinylpyrrolidone copolymer

CAS No: 30581-59-0

Formula: (C8H15NO2.C6H9NO)x

Categories: Catalyst and Auxiliary > Film Forming

clear colorless to slightly brown liquidMore

Poly(isobutyl methacrylate)

CAS No: 9011-15-8

Formula: (C8H14O2)x

Categories: Catalyst and Auxiliary > Film Forming

white powder or crystalsMore

BIS-(BIPYRIDIN)-4'-METHYL-4-CARBOXYBIPY.

CAS No: 136724-73-7

Formula: C16H13N3O4.2C10H8N2.Ru

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Activated ester of ruthenium complex for acylation of amino acid side chain amines. This label is perfectly suitable for 1D- or 2D-protein gel staining providing a sensitivity better than SYPRO RubyTM and a similar dynamic range.More

Bis(dimethylamino-2-propoxy)copper(II), min. 98% Cu(dmap)2

CAS No: 185827-91-2

Formula: C10H24CuN2O2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

ALD/CVD precursor for the preparation of Cu, Cu2O, or Cu2S films for electronic applications at temperatures ranging from 135 to 170°C. The TSubl = 90°C/0.05 Torr and has a decomposition temperature of 185-188°C. More

BIS(2-ETHYLHEXYL)PHTHALATE (RING-D4)

CAS No: 93951-87-2

Formula: C24H34D4O4

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Labelled Bis(2-ethylhexyl)phthalate. Dialkyl phthalate ester plasticizer used to import softness and flexibility to PVC products.More

Bis(ethylenediamine)platinum(II) chloride

CAS No: 21430-85-3

Formula: C4H16Cl2N4Pt

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

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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