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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

Pentanedioic acid, 1,5-diisodecyl ester

CAS No: 29733-18-4

Formula: C25H48O4

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Methyl vinyl ether-monobutyl maleate copolymer

CAS No: 25119-68-0

Formula: (C8H12O4.C3H6O)x

Categories: Catalyst and Auxiliary > Film Forming

(T-4)-Tris(N-ethylethanaminato)[2-methyl-2-propanaminato(2-)]tantalum

CAS No: 169896-41-7

Formula: C16H39N4Ta

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

1-[2-[Bis(tricyclo[3.3.1.13,7]dec-1-yl)phosphino]phenyl]piperidine

CAS No: 1237588-13-4

Formula: C31H44NP

Categories: Catalyst and Auxiliary > Polymer

1,3-Butadiene, 2-methyl-, homopolymer, chlorinated

CAS No: 68441-58-7

Categories: Catalyst and Auxiliary > Polymer

VERY VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.More

Benzaldehyde, 4-ethenyl-, polymer with diethenylbenzene

CAS No: 55279-75-9

Formula: (C10H10.C9H8O)x

Categories: Catalyst and Auxiliary > Polymer

off-white to light yellow or pale brown beadsMore

Diacetato[(S)-(-)-2,2'-bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthy]ruthenium(II)

CAS No: 142962-95-6

Formula: C44H40P2.C4H6O4Ru

Categories: Catalyst and Auxiliary > Polymer

trisodium,hexachloroiridium(3-),hydrate

CAS No: 123334-23-6

Formula: Cl6H2IrNa3O

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Syringaresil diacetate

CAS No: 1990-77-8

Formula: C26H30O10

Categories: Catalyst and Auxiliary > Polymer

619 Catalyst and Auxiliary Suppliers

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

(R)-(+)-2,2'-BIS[(DIPHENYLPHOSPHINO)AMINO]-1,1'-BINAPHTHYL

CAS No: 74974-14-4

Formula: C44H34N2P2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Fluorescent Brightener 204

CAS No: 76482-77-4

Formula: C32H26N12Na2O6S2

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Fluorescent Brightener 368

CAS No: 117313-08-3

Formula: C44H77NO12

Categories: Catalyst and Auxiliary > Fluorescent Brightener

CHLORODICARBONYL(1-(I-PROPYLAMINO)-2,3,4,5-TETRAPHENYLCYCLOPENTADIENYL)RUTHENIUM (II)

CAS No: 470688-18-7

Formula: C34H28ClNO2Ru 5*

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

1,1Bis[(2R,5R)-2,5-diethylphospholano]ferrocene, min. 97%

CAS No: 147762-89-8

Formula: C26H40FeP2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Fluorescent brightener378

CAS No: 164908-53-6

Formula: C30H26O2

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Phenol, 4,4′-(1-methylethylidene)bis-, polymer with 1,1′-sulfonylbis[4-chlorobenzene]

CAS No: 25154-01-2

Formula: (C15H16O2.C12H8Cl2O2S)x

Categories: Catalyst and Auxiliary > Polymer

Hard, rigid, transparent solid. Tensile strength 10,000 psi,flexural strength 15,000 psi, good electrical resistance, minimum creep, low expansion coefficient. Soluble in aromatic hydro- carbons, ketones, and chlorinated hydrocarbons; resistant to corrosive acids and alkalies, heat, oxida- tion, detergents, oils, and alcohols. Dimensionally stable over the temperature range ?100 to +148C; tends to absorb moisture, readily processed and fab- ricated. Combustible but self-extinguishing. More

Poly[(-)-3-hydroxybutyric acid]

CAS No: 29435-48-1

Formula: (C4H8O3)x

Categories: Catalyst and Auxiliary > Skin Conditioning

5-benzylmorpholin-3-one

CAS No: 101250-48-0

Formula: C11H13NO2

Categories: Catalyst and Auxiliary > Antioxidants

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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