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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 305 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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1189 Catalyst and Auxiliary items

Dihexyl phthalate

CAS No: 84-75-3

Formula: C20H30O4

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

It is a clear, oily liquid, with a melting point of -58°C and a boiling point of 340–350°C.More

Polyethylene glycol monomethacrylate

CAS No: 25736-86-1

Formula: (C2H4O)nC4H6O2

Categories: Catalyst and Auxiliary > Polymer

Comonomer in emulsion polymerization, thickener and dispersant and suspending aid.More

Bis(2-butoxyethyl) adipate

CAS No: 141-18-4

Formula: C18H34O6

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

(+)-1,2-BIS((2S,5S)-2,5-DIETHYLPHOSPHOLANO)BENZENE(CYCLOOCTADIENE)RHODIUM (I) TRIFLUOROMETHANESULFONATE

CAS No: 142184-30-3

Formula: C31H48F3O3P2RhS

Categories: Catalyst and Auxiliary > Polymer

orange to red-orange crystalsMore

Neononanoic acid, ethenyl ester

CAS No: 54423-67-5

Formula: C11H20O2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Fumonisin B2

CAS No: 116355-84-1

Formula: C34H59NO14

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

Pale Yellow Crystalline SolidMore

Amines, C20-22-alkyldimethyl

CAS No: 93164-85-3

Categories: Catalyst and Auxiliary > Antioxidants

Used in the production of pesticides, dyes, pharmaceutical intermediates and plastic additives. This variety implements the requirements of the HG/T3606-1999 standard and has three specifications. The by-product hydrochloric acid of the first phase of the project is a colorless or slightly yellow transparent liquid. This product is the most basic raw material in the chemical industry. The company uses a three-stage cycle absorption process.More

Butyl 4,4-bis(tert-butylperoxy)valerate

CAS No: 995-33-5

Formula: C17H34O6

Categories: Catalyst and Auxiliary > Coupling Agent

n-butyl-4,4-bis(tert-butylperoxy) valerate is a colorless to straw liquid, with slight bleach-like odor. The product is a colorless liquid with slight camphor odor, chemically unstable (should only be handled under specified conditions, below 38°C/100°F). Contact with incompatible materials or exposure to temperatures exceeding the self accelerating decomposition temperature may result in a self-accelerating decomposition reaction with release of flammable vapors that may autoignite.More

C.I. Fluorescent Brightener 33

CAS No: 61902-19-0

Categories: Catalyst and Auxiliary > Fluorescent Brightener

618 Catalyst and Auxiliary Suppliers

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P(t-Bu)3 Pd G4

CAS No: 1621274-11-0

Formula:

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Antioxidant 736

CAS No: 96-66-2

Formula: C22H30O2S

Categories: Catalyst and Auxiliary > Antioxidants

disodium,hexachloroiridium(2-),hexahydrate

CAS No: 19567-78-3

Formula: Cl6H12IrNa2O6

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Diisobutyl fumarate

CAS No: 7283-69-4

Formula: C12H20O4

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

Used in perfume synthesis, pharmaceuticals, plastic additives, etc.More

Benzene, ethenyl-, polymer with 1,3-butadiene, hydrogenated

CAS No: 66070-58-4

Formula: (C8H8.C4H6)x

Categories: Catalyst and Auxiliary > Film Forming

Components of hot melt adhesives, sealants, asphalt and oil gels. Used as a regulator for polymer, thermosetting materials and general rubber formulations. Directly molded or extruded automotive parts, sporting goods, work shoes and films.More

1,6-Hexanediol bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]

CAS No: 35074-77-2

Formula: C40H62O6

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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