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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 315 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

2-(Di-1-adamantylphosphino) dimethylaminobenzene,97% Me-DalPhos

CAS No: 1219080-77-9

Formula: C28H40NP

Categories: Catalyst and Auxiliary > Polymer

Laurolactam homopolymer

CAS No: 25038-74-8

Formula: (C12H23NO)x

Categories: Catalyst and Auxiliary > Viscosity Controlling

nylon 12 is a bulking and opacifying agent that provides good feel and good elasticity to moisturizers and makeup preparations, including foundations. nylon 12 reduces oiliness. It is a polyamide derivative of acid 12-aminododecanioic.More

Poly(p-chlorostyrene)

CAS No: 24991-47-7

Formula: (C8H7Cl)x

Categories: Catalyst and Auxiliary > Polymer

white powderMore

Cucurbituril

CAS No: 80262-44-8

Formula: C36H36N24O12

Categories: Catalyst and Auxiliary > Film Forming

2,2′-(1,2-Ethenediyl)bis[5-[[4-(diethylamino)-6-[(2,5-disulfophenyl)amino]-1,3,5-triazin-2-yl]amino]benzenesulfonic acid] hexasodium salt

CAS No: 41098-56-0

Formula: C40H44N12O18S6.6Na

Categories: Catalyst and Auxiliary > Fluorescent Brightener

C.I. Fluorescent Brightener 210

CAS No: 28950-61-0

Formula: C40H40N12O14S4.4Na

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Carbon monoxide-ethylene-vinyl acetate copolymer

CAS No: 26337-35-9

Formula: (C4H6O2.C2H4.CO)x

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

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(OC-6-11)-Tris(2,2,6,6-tetramethyl-3,5-heptanedionato-κO3,κO5)lanthanum

CAS No: 14319-13-2

Formula: C33H57LaO6

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

C.I. Fluorescent Brightener 191

CAS No: 12270-53-0

Formula:

Categories: Catalyst and Auxiliary > Fluorescent Brightener

B-TRIBROMOBORAZINE

CAS No: 13703-88-3

Formula: B3Br3H3N3

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(+)-1,2-BIS[(2S,5S)-2,5-DIMETHYLPHOSPHOLANO]BENZENE

CAS No: 136735-95-0

Formula: C18H28P2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Poly(hexafluoropropylene oxide)

CAS No: 25038-02-2

Formula: (C3F6O)x

Categories: Catalyst and Auxiliary > Polymer

Hexafluoropropylene oxide is a colorless odorless gas. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite. Its vapors are heavier than air. It can cause asphyxiation by the displacement of air. Exposure of the container to prolonged heat or fire may cause it to rupture violently and rocket.More

Poly(methyl acrylate)

CAS No: 9003-21-8

Formula: (C4H6O2)x

Categories: Catalyst and Auxiliary > Film Forming

clear liquid Polymethacrylates are synthetic cationic and anionic polymers of dimethylaminoethyl methacrylates, methacrylic acid, and methacrylic acid esters in varying ratios. Several different types are commercially available and may be obtained as the dry powder, as an aqueous dispersion, or as an organic solution. A (60 : 40) mixture of acetone and propan-2-ol is most commonly used as the organic solvent.
Eudragit E is a cationic polymer based on dimethylaminoethyl methacrylate and otMore

DICHLORO(P-CYMENE)TRICYCLOHEXYLPHOSPHINERUTHENIUM (II)

CAS No: 145381-23-3

Formula: C28H47Cl2PRu 6*

Categories: Catalyst and Auxiliary > Polymer


Noels metathesis catalyst component with (trimethylsilyl)diazomethane for ring opening polymerization reactions.

Catalyst for the controlled atom transfer radical polymerization of acrylates.

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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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