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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 314 trusted manufacturers and 301 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

1,2-Benzenedicarboxylic acid, 1,2-dihexyl ester, branched and linear

CAS No: 68515-50-4

Categories: Catalyst and Auxiliary > Plastic Rubber Chemicals

The structural formula of DiC6P varies because the iso-alcohols used in the manufacture contain several isomers. DiC6P is a watery white liquid with a mild odor. It is a liquid from -33°C (pour point) to 340–350°C (boiling point). The vapor pressure is 0.01 mmHg (100°C). DiC6P is essentially insoluble in water, but it is soluble in organic solvents. It has a specific gravity of 1.01.More

Vinyl acetate-vinyl alcohol-vinyl chloride copolymer

CAS No: 25086-48-0

Formula: (C4H6O2.C2H4O.C2H3Cl)x

Categories: Catalyst and Auxiliary > Polymer

4,4-Diaminodiphenylmethane

CAS No: 101-77-9

Formula: C13H14N2

Categories: Catalyst and Auxiliary > Antioxidants

white to yellow or beige flakes or crystals 4,4’-Diaminodiphenylmethane is a pale yel- low crystalline solid (turns light brown on contact with air) with a faint amine-like odor.ChEBI: An aromatic amine that is diphenylmethane substituted at the 4-position of each benzene ring by an amino group.A tan flake or lump solid with a faint fishlike odor. May be toxic by inhalation or ingestion, and may be irritating to skin. Insoluble in water.More

2-Propyn-1-amine, hydrochloride

CAS No: 15430-52-1

Formula: C3H5N.ClH

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Triphos

CAS No: 23582-02-7

Formula: C34H33P3

Categories: Catalyst and Auxiliary > Polymer

white to light yellow crystal powdeMore

CIS-BIS(ISOTHIOCYANATO)BIS(2,2-BIPYRIDYL-4,4-DICARBOXYLATO)-RUTHENIUM(II)

CAS No: 141460-19-7

Formula: 2C12H8N2O4.C2N2RuS2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

High-performance ruthenium-based dyes for dye-sensitized solar cells (DSC)More

PENTAMETHYLCYCLOPENTADIENYLBIS(TRIPHENY&

CAS No: 92361-49-4

Formula: 2C18H15P.C10H15.ClRu

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

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Di-chlorobis[(1,2,3-)-1-phenyl-2-propenyl]dipalladium(II), 98%

CAS No: 12131-44-1

Formula: [(C9H9)ClPd]2

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Di-chlorobis[(1,2,3-)-1-phenyl-2-propenyl]dipalladium(ii) is an important organic regant for the use of transition-metal-mediated organic syntheses. It can be used as a catalyst for the ammonia cross-coupling reactions to synthesize arylamines and conversion of aryl triflates to fluorides.
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4-Nitronaphthalene-1,8-dicarboxylic anhydride

CAS No: 34087-02-0

Formula: C12H5NO5

Categories: Catalyst and Auxiliary > Fluorescent Brightener

light yellow powderMore

cataCXium A Pd G3

CAS No: 1651823-59-4

Formula: C37H52NO3PPdS

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Xantphos Palladacycle Gen. 4

CAS No: 1621274-19-8

Formula:

Categories: Catalyst and Auxiliary > Polymer

Trimethyl(methylcyclopentadienyl)platinum

CAS No: 94442-22-5

Formula: C9H16Pt

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(Trimethyl)methylcyclopentadienylplatinum(IV) was used for the deposition of ultrathin metallic layers of platinum by electron beam induced deposition, atomic sputtering.These deposits find application in microelectronics, catalysis, photonics and chemical sensing. More

Poly(ethylene glycol) bis(p-dimethylaminobenzoate)

CAS No: 71512-90-8

Formula: (C2H4O)nC18H20N2O3

Categories: Catalyst and Auxiliary > Polyethylene Glycol Derivatives

UV-curable coatings and inksMore

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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