Catalyst and Auxiliary
According to the definition of the International Union of Pure Chemistry and Applied Chemistry (IUPAC) in 1981: a catalyst is a substance that changes the reaction rate but does not change the Gibbs free energy of the overall reaction standard. There are many types of catalysts, which can be divided into liquid catalysts and solid catalysts according to the state; and homogeneous catalysts and heterogeneous catalysts according to the phase state of the reaction system. In industrial production, auxiliary chemicals added to improve the production process, increase product quality and output, or to give products a certain specific application performance. The variety of additives is vast and their performances vary greatly. Only when used properly can the effect be prominent. "Catalyst and Auxiliary" on Echemi mainly supplies raw materials for Catalyst and Auxiliary.
+- Catalyst and Auxiliary
Related News
Related Products Price
Antioxidants
Antioxidants are substances that prevent the adverse effects of oxygen. It is a type of substance that can help capture and neutralize free radicals, thereby eliminating free radical damage to the human body. Antioxidants as food additives can help fight food spoilage. Antioxidants are usually added to industrial products. A common use is as a stabilizer for fuels and lubricants to prevent oxidation. It can also be added to gasoline to prevent polymerization and prevent the formation of engine fouling. "Antioxidants" on Echemi mainly supplies raw materials for Antioxidants.
-
yiphos3019- phosphite antioxidant,phenol free 98.5%
-
4,4'-Methylenebis(2,6-di-tert-butylphenol) 98.0%
-
Butylated hydroxytoluene Industrial Grade wholesale
-
Butylated Hydroxytoluene(128-37-0)
ANTIOXIDANT 168(31570-04-4)
Pentaerythritoltetrakis (3-(3,5-Di-Tert-Butyl-4-Hydroxyphenyl) Propionate)(6683-19-8)
Octadecyl3-(3,5-Di-Tert-Butyl-4-Hydroxyphenyl) Propionate(2082-79-3)
N-(1,3-Dimethylbutyl)-N'-Phenyl-P-Phenylenediamine(793-24-8)
4,4'-Dithiodimorpholine(103-34-4)
N-Isopropyl-N'-Phenyl-P-Phenylenediamine (IPPD)(101-72-4)
hydrazide(32687-78-8)
UV Absorbers
UV Absorbers are currently the most widely used type of light stabilizers, which can absorb the ultraviolet light in sunlight and fluorescent light sources without changing themselves. According to its structure, it can be divided into salicylates, benzophenones, benzotriazoles, substituted acrylonitriles, triazines, etc. The most widely used in industry are benzophenones and benzotriazoles class. "UV Absorbers" on Echemi mainly supplies raw materials for UV Absorbers.
1,2,3-Benzotriazole(95-14-7)
Bumetrizole(3896-11-5)
2-(2'-Hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole(3864-99-1)
2-(2’-hydroxy-5’-methylphenyl) benzotr...(2440-22-4)
2-(2-Hydroxy-5-tert-octylphenyl)benzotriazole(3147-75-9)
2-(2H-Benzotriazol-2-yl)-4,6-ditertpen...(25973-55-1)
Cyanuric acid(108-80-5)
Tolytriazole(29385-43-1)
Polyethylene Glycol Derivatives
Polyethylene Glycol Derivatives has excellent lubricity, moisture retention, dispersion, adhesives, antistatic agents and softeners, etc., in cosmetics, pharmaceuticals, chemical fiber, rubber, plastics, paper, paint, plating, pesticides, metal processing And food processing and other industries are extremely widely used.
-
Polyethylene glycol dimethyl ether (NHD) 99%
-
BYK Raw Material factory selling Cover Paint/Pigment/Ink defoamer for paint
-
Great material Coal mine flotation special defoamer price of mineral oil
-
Polyethylene Glycol(25322-68-3)
OCTYLPHENYLPOLYETHYLENEGLYCOL(9002-93-1)
Methoxypolyethylene glycols(9004-74-4)
Polyethylene glycol dimethyl ether(24991-55-7)
POLY(ETHYLENEGLYCOL)DIOLEATE(9005-07-6)
Allyloxypolyethyleneglycol(27274-31-3)
Polyethyleneglycolmonolaurate(9004-81-3)
Dodecylheptaglycol(3055-97-8)
Fluorescent Brightener
Fluorescent brightener is a fluorescent dye, or white dye, is also a complex organic compound. Its characteristic is that it can excite the incident light to produce fluorescence, so that the dyed substance obtains a shining effect similar to fluorite, making the substance seen by the naked eye very white. According to the chemical structure, it can be divided into five categories: stilbene type, coumarin type, pyrazoline type, benzoxazide type and phthalimide type. "Fluorescent Brightener" on Echemi mainly supplies raw materials for fluorescent brighteners.
2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole(1533-45-5)
Fluorescent Brightener OB(7128-64-5)
Optical Brightener FB-351(27344-41-8)
L(-)-Malic acid(97-67-6)
Fluorescent Brightener 367(5089-22-5)
FluorescentBrightenerKS-N(5242-49-9)
FLUORESCENT BRIGHTENER 28(4404-43-7)
2-Chlorobenzylcyanide(2856-63-5)
New Arrivals
Most Popular
-
pharma and cosmetic grade Carbomer 940 Carbopol
$40-50/KG FOB
-
$100000000/MT FOB
-
-
Related Products
Activated Carbon(64365-11-3)
Polyvinyl chloride(9002-86-2)
Poly(acrylic acid) Macromolecule(9003-01-4)
Hydrolyzed Polymaleic Anhydride(26099-09-2)
Dibutylphthalate(84-74-2)
Poly(1,2-Dihydro-2,2,4-Trimethylquinoline) (Tmq)(26780-96-1)
2,2',4,4'-Tetrahydroxybenzophenone(131-55-5)
Light Stabilizer 622(65447-77-0)
Polyparpylene Fiber(9003-07-0)
Avobenzone(70356-09-1)