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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

BIS(BIPYRIDINE)-(5-AMINOPHENANTHROLINE)R

CAS No: 84537-86-0

Formula: C32F12H25N7P2Ru1

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(11bR)-N,N-Bis[(1S)-1-phenylethyl]dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-amine

CAS No: 209482-28-0

Formula: C36H30NO2P

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

[4-(Hydroxymethyl)phenoxymethyl]polystyrene

CAS No: 1365700-43-1

Categories: Catalyst and Auxiliary > Polymer

Dowex 50W-X4

CAS No: 11113-61-4

Categories: Catalyst and Auxiliary > Water Softener

beadsMore

1,2-Ethanediamine, polymer with 2-methyloxirane and oxirane

CAS No: 26316-40-5

Formula: (C3H6O.C2H8N2.C2H4O)x

Categories: Catalyst and Auxiliary > Polymer

Formed from ethylenediamine, propylene oxide, and ethylene oxide, this polymer is typically a thick liquid or waxy solid.More

Benzenesulfonic acid, 2,2′-(1,2-ethenediyl)bis[5-[[(phenylamino)carbonyl]amino]-, sodium salt (1:2)

CAS No: 2606-93-1

Formula: C28H24N4O8S2.2Na

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Fluorescent dye for cellulose, protein fibers, nylon, wool or paper.More

Butyl maleate-isobornyl acrylate-vinyl acetate copolymer

CAS No: 136392-68-2

Formula: (C13H20O2.C12H20O4.C4H6O2)x

Categories: Catalyst and Auxiliary > Film Forming

Additive to hair and skin care products.More

Iosan

CAS No: 11096-42-7

Formula: (C2H4O)nC15H24O.xI2

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Dark Red-Brown Viscous LiquidMore

AMBERLITE IRA-404

CAS No: 149146-26-9

Categories: Catalyst and Auxiliary > Polymer

Strongly basic anion exchange resin, used to adsorb and remove organic matter in water; is an organic matter eliminating agent.More

Dichloro{(S)-(-)-2,2'-bis[di(3,5-xylyl)phosphino]-1,1'-binaphthyl}[(1S,2S)-(-)-1,2-diphenylethylenediamine]ruthenium(II)

CAS No: 220114-03-4

Formula: C66H64Cl2N2P2Ru

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

  • buy Dichloro{(S)-(-)-2,2'-bis[di(3,5-xylyl)phosphino]-1,1'-binaphthyl}[(1S,2S)-(-)-1,2-diphenylethylenediamine]ruthenium(II) CAS NO 220114-03-4

    Dichloro{(S)-(-)-2,2'-bis[di(3,5-xylyl)phosphino]-1,1'-binaphthyl}[(1S,2S)-(-)-1,2-diphenylethylenediamine]ruthenium(II) CAS NO 220114-03-4

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  • buy RuCl2[(S)-(DM-BINAP)][(S,S)-DPEN]

    RuCl2[(S)-(DM-BINAP)][(S,S)-DPEN]

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  • buy Dichloro{(S)-(-)-2,2'-bis[di(3,5-xylyl)phosphino]-1,1'-binaphthyl}[(1S,2S)-(-)-1,2-diphenylethylenediamine]ruthenium(II)

    Dichloro{(S)-(-)-2,2'-bis[di(3,5-xylyl)phosphino]-1,1'-binaphthyl}[(1S,2S)-(-)-1,2-diphenylethylenediamine]ruthenium(II)

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619 Catalyst and Auxiliary Suppliers

Short on time? Let Catalyst and Auxiliary sellers contact you.

Allyl alcohol-styrene copolymer

CAS No: 25119-62-4

Formula: (C8H8.C3H6O)x

Categories: Catalyst and Auxiliary > Polymer

5,5,6,6-Tetrafluoro-6-bromohexanol

CAS No: 240140-55-0

Formula: C6H9BrF4O

Categories: Catalyst and Auxiliary > Polymer

Triethylene glycol monohexadecyl ether

CAS No: 4484-59-7

Formula: C22H46O4

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Potassium titanium oxide (K2Ti4O9)

CAS No: 12056-49-4

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

POLY(ISOPRENE), CIS, AVERAGE M.W. 800.000

CAS No: 104389-31-3

Formula:

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Hydrogenated MDI-polypropylene glycol copolymer

CAS No: 9042-82-4

Formula: (C15H22N2O2.(C3H6O)nH2O)x

Categories: Catalyst and Auxiliary > Film Forming

Benzenamine, 4,4'-[[2-(6-oxido-6H-dibenz[c,e][1,2]oxaphosphorin-6-yl)-1,4-phenylene]bis(oxy)]bis-

CAS No: 947342-47-4

Formula: C30H23N2O4P

Categories: Catalyst and Auxiliary > UV Absorbers

Surlyn

CAS No: 9078-96-0

Formula:

Categories: Catalyst and Auxiliary > Polymer

Formaldehyde, polymer with 4-(1,1,3,3-tetramethylbutyl)phenol

CAS No: 26678-93-3

Formula: (C14H22O.CH2O)x

Categories: Catalyst and Auxiliary > Polymer

Acrylonitrile-methyl acrylate copolymer

CAS No: 24968-79-4

Formula: (C4H6O2.C3H3N)x

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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