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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 303 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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1188 Catalyst and Auxiliary items

Diacetato[(R)-(+)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl]ruthenium(II)

CAS No: 346457-41-8

Formula: 2C38H28O4P2.C2H7N.Cl.Cl3Ru2.ClH

Categories: Catalyst and Auxiliary > Polymer

1,1′-[(4R)-[4,4′-Bi-1,3-benzodioxole]-5,5′-diyl]bis[1,1-diphenylphosphine]

CAS No: 244261-66-3

Formula: C38H28O4P2

Categories: Catalyst and Auxiliary > Polymer

(S)-(-)-5,5'-Bis(diphenylphosphino)-4,4'-bi-1,3-benzodioxole,min.98%(S)-SEGPHOS

CAS No: 210169-54-3

Formula: C38H28O4P2

Categories: Catalyst and Auxiliary > Polymer

Dihydrogen hexachloroiridate

CAS No: 16941-92-7

Formula: Cl6Ir.2H

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

617 Catalyst and Auxiliary Suppliers

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Isoprene-styrene copolymer

CAS No: 25038-32-8

Formula: (C8H8.C5H8)x

Categories: Catalyst and Auxiliary > Film Forming

Isoprene-Styrene Copolymer (ISCP) is a thermoplastic elastomer material that is well-regarded for its excellent flexibility and wear resistance. At room temperature, this copolymer exhibits rubber-like elasticity, yet it can be processed and molded like plastic when heated. This unique property allows for a wide range of applications across various fields. Typically appearing as yellow to pale yellow granules, ISCP is visually distinguishable from other materials. These granules can be melted and reformed during processing to create products of various shapes and sizes. Due to its good flexibility and durability, Isoprene-Styrene Copolymer has significant advantages in manufacturing automotive parts, wire and cable coatings, hoses, seals, and other products that require impact resistance and abrasion resistance. Additionally, it boasts good aging resistance and chemical corrosion resistance, further expanding its application range. Whether exposed to harsh external environments or in contact with various chemicals, this material maintains stable physical and chemical properties. Therefore, Isoprene-Styrene Copolymer has broad application prospects in industries such as construction, medical devices, and sports equipment.More

Guanidine, N,N′′′-1,6-hexanediylbis[N′-cyano-, polymer with 1,6-hexanediamine, hydrochloride

CAS No: 27083-27-8

Formula: (C10H18N8.C6H16N2)x.xClH

Categories: Catalyst and Auxiliary > Cosmetic Preservative

Poly(hexamethylenebicyanoguanide-hexamethylenediamine) Hydrochloride is used in the stabilization of fabric linings in shoes. Biguanide solution used in cleaning contact lenses.More

1-Piperidinecarbodithioic acid, compd. with piperidine (1:1)

CAS No: 98-77-1

Formula: C6H11NS2.C5H11N

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

(SP-4-2)-Dichlorobis[1,1′-thiobis[ethane]]platinum

CAS No: 15442-57-6

Formula: C8H20Cl2PtS2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Yellow-green powderMore

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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