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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 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

Polyquaternium 10

CAS No: 81859-24-7

Formula: C8H20NO3.xC6H16NO2.xC2H6O2.xCl.xUnspecified

Categories: Catalyst and Auxiliary > Film Forming

Polyquaternium-10 (PQ-10) and Polyquaternium-7 (PQ-7) are two of the most frequently used polymers in commercial shampoos. Both of these polymers form negatively charged complexes with excess anionic surfactant, resulting in reduced deposition because of repulsion by the negatively charged hair surface. The magnitude of this effect depends on the particular anionic used, and on the anionic surfactant/polymer ratio. In all cases, however, conditioning from shampoos is significantly less than fromMore

1,3,5-Trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene

CAS No: 1709-70-2

Formula: C54H78O3

Categories: Catalyst and Auxiliary > Antioxidant Ingredient

This product is a high molecular weight multi-component hindered phenolic antioxidant with good heat resistance, no pollution, no coloring, low volatility, etc. It is an excellent antioxidant for high-density polyethylene, polypropylene and rubber. It is also used in The amount of plastic products such as polyvinyl chloride, polyamide, ABS resin and polyester is generally 0.1 to 0.5 parts.More

Polyglycerol

CAS No: 25618-55-7

Formula: (C3H8O3)x

Categories: Catalyst and Auxiliary > Skin Conditioning

Viscous liquids to solids. Soluble in water, alcohol, and other polar solvents. Act as humectants much like glycerol but have progressively higher molecular weight and boiling point. Combustible.More

Poly(methyl methacrylate)

CAS No: 9011-14-7

Formula: (C5H8O2)x

Categories: Catalyst and Auxiliary > Film Forming

1. Biomedical
PMMA has been used in the area of biomedical applications, which involves the preparation of bone cements for drug delivery/release and cranioplasty. The qualities that made the polymer a potential material for these applications include: non-toxicity, less cost, easy processability, compatibility, minimal inflammatory reactions with tissues, and greater fracture resistance, especially when used in cranioplasty.
PMMA has also been used to widen the applications of chitMore

617 Catalyst and Auxiliary Suppliers

Short on time? Let Catalyst and Auxiliary sellers contact you.

Oleoylethanolamide

CAS No: 111-58-0

Formula: C20H39NO2

Categories: Catalyst and Auxiliary > Antistatic

ChEBI: An N-(long-chain-acyl)ethanolamine that is the ethanolamide of oleic acid. The monounsaturated analogue of the endocannabinoid anandamideMore

2-[4-[2-[4-(2-Benzoxazolyl)phenyl]ethenyl]phenyl]-5-methylbenzoxazole

CAS No: 5242-49-9

Formula: C29H20N2O2

Categories: Catalyst and Auxiliary > Fluorescent Brightener

Fluorescent whitening agent KSN and OB-1 have similar chemical structure, but the whitening effect of polyester fiber and plastic products is better than OB-1, and the compatibility with plastic is better than OB-1, and the amount is very small It can produce very good whitening effect in Chemicalbook, which is far from OB-1. KSN not only has excellent high temperature resistance, but also has excellent resistance to sunlight and weather. Fluorescent whitening agent KSN is used in all plastics, More

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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