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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 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

Poly(vinyl methyl ketone)

CAS No: 25038-87-3

Formula: (C4H6O)x

Categories: Catalyst and Auxiliary > Polymer

white to off-white granulesMore

3-hydroxynaphthalen-2-olate;naphthalene-2,3-diol;tetraphenylphosphanium

CAS No: 502157-73-5

Formula: C44H35O4P

Categories: Catalyst and Auxiliary > Antioxidants

(1,5-CYCLOOCTADIENE)BIS(TRIPHENYLPHOSPHINE)RHODIUM(I) HEXAFLUOROPHOSPHATE DICHLOROMETHANE COMPLEX (1:1)

CAS No: 35238-97-2

Formula: C45H44Cl2F6P3Rh 4*

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, chloromethylated, trimethylamine-quaternized

CAS No: 69011-19-4

Formula: (C10H12.C10H10.C8H8.C3H9N)x

Categories: Catalyst and Auxiliary > Polymer

Dowex® 1X8 chloride form was used: to separate the 3H2O from D[2-3H] glucose using Dowex columns. in a assay to determine the pantothenate kinase using Dowex column. to separate inositol phosphates (IPs) from myo-[3H]inositol by Dowex chromatography.More

Poly(oxy-1,2-ethanediyl), α-[2-[(3-carboxy-1-oxopropyl)amino]ethyl]-ω-methoxy-

CAS No: 92450-99-2

Formula: (C2H4O)nC7H13NO4

Categories: Catalyst and Auxiliary > Polymer

Reactant for:• ;Preparation of supramolecular ABC triblock copolymers via orthogonal self-assembly1• ;Filamentous condensation of DNA for transfection studies2More
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Benzene, diethenyl-, polymer with ethenylbenzene and ethenylethylbenzene, chloromethylated, trimethylamine-quaternized, hydroxide

CAS No: 69011-18-3

Formula: (C10H12.C10H10.C8H8.C3H9N)x

Categories: Catalyst and Auxiliary > Polymer

Strongly basic (type I) anion exchange resin, monodisperse particle size improves the efficiency and capacity of mixed bed application and concentrate refinement. The resin meets the requirements of the Food Additives Regulation 21CFR173.25 of the US Food and Drug Administration.More

2,2,2-trifluoro-1-phenyl-1-(1H-pyrrol-2-yl)ethanol

CAS No: 4156-00-7

Formula: C12H10F3NO

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(R,R)-2,5-Dimethyl-1-phenyl-phospholane

CAS No: 129647-10-5

Formula: C12H17P

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

(4-{[2-(5-Chlorothiophen-2-Yl)-5-Ethyl-6-Methylpyrimidin-4-Yl]amino}phenyl)acetic Acid

CAS No: 915082-52-9

Formula: C19H18ClN3O2S

Categories: Catalyst and Auxiliary > Petrochemical

16-Tritriacontanone

CAS No: 15740-35-9

Formula: C33H66O

Categories: Catalyst and Auxiliary > Antioxidants

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1,2,2,3r,4,4-hexamethyl-phosphetane 1c-oxide

CAS No: 33530-51-7

Formula: C9H19OP

Categories: Catalyst and Auxiliary > Precious Metal Catalysts

2,4-Bisphenyl-6-(2-hydroxy-4-n-octyloxyphenyl) -1,3,5-triazin

CAS No: 139123-70-9

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2,4-Bis (2,4-dihydroxyphenyl)-6-ethyl mercaptan -1,3,5-triazine

CAS No: 195873-17-7

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2,4-Bis-(2,4-dimethyl phenyl)-6-(2-hydroxy-4 -hexyloxyphenyl)-1,3,5-triazine

CAS No: 168921-86-6

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2,4-Bis-(2,4-dimethyl phenyl)-6-(2-hydroxy-4 -ethoxyphenyl)-1,3,5-triazine

CAS No: 1440-08-0

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2,4-Bis(2-hydroxy-4-methoxyphenyl)-6-ethyl mercaptan-1,3,5-triazine

CAS No: 195873-19-9

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

Octyl 2-[4-[4-[2,4-bis[(1-octoxy-1-oxopropan-2-yl)oxy]phenyl]-6-[2-hydroxy-4-(1-octoxy-1 -oxopropan-2-yl)oxyphenyl]-1,3,5-triazin-2-yl]-3-hydroxyphenoxy]propanoate

CAS No: 348144-63-8

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2-(4,6-bis(2,4-dimethylphenyl)-1,3,5-triazin-2-yl)-5 -((2-ethylhexyl)oxy)phenol

CAS No: 652991-75-8

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-((2-ethylhexyl)oxy) phenol

CAS No: 1251831-39-6

Formula:

Categories: Catalyst and Auxiliary > UV Absorbers

Benzenesulfonic acid, dimethyl-, polymer with formaldehyde, sodium salt

CAS No: 70788-40-8

Formula: (C8H10O3S.CH2O)x.xNa

Categories: Catalyst and Auxiliary > Polymer

  • buy Benzenesulfonic acid, dimethyl-, polymer with formaldehyde, sodium salt

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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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