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Catalyst and Auxiliary

The catalyst can change the reaction rate in the chemical reaction, and the composition and the quality of the catalyst can be kept constant after the reaction. The catalyst that accelerates the reaction is called the positive catalyst, slows down called Negative Catalyst or slow agent. It said catalyst is a positive catalyst for the general correction. This kind of catalyst in the industry, especially the organic chemical industry used more, and has great significance, Such as sulfuric acid prepared by contacting, ammonia, hydrolysis of the ester and polysaccharide, Oil Hydrogenation, etc. Commonly used catalysts are mainly metal, metal oxide and inorganic acid. If the catalyst is solid, the substance of the reaction is gas, to form a multi-phase catalytic reaction, this catalyst, sometimes called catalyst or contact agent. The catalyst is generally selective, it can only make a reaction or a certain type of reaction to speed up. But some reaction can be used for a variety of catalysts, such as the hydrogenation reaction can often be platinum, palladium, nickel, should be carefully chosen. In the catalytic reaction, the catalyst is often added cocatalyst known to enhance catalytic action of the catalyst. For example, iron is a catalyst in ammonia industry, adding a small amount of potassium and aluminum can enhance the catalytic effect of iron. The composition and weight of the catalyst and cocatalyst cannot change before and after the reaction. All of the above are inorganic catalysts. The enzyme is a protein, is very important organic catalyst.

There are many kinds of catalyst, catalyst and reaction system according to the phase of the classification, there are two types of homogeneous and heterogeneous catalysts. Heterogeneous catalysts most widely used, there are 3 kinds of gas, liquid and solid state, the variety and application of solid catalyst. The solid catalyst, which is made of metal (nickel, platinum, palladium, chromium, cobalt, titanium, vanadium, etc.) or metal oxide (copper oxide, vanadium pentoxide, lead oxide), is dispersed and deposited on the carrier in order to obtain a good dispersion effect and increase the specific surface area. The catalyst requires reliable activity, stability, selectivity, long working life, not easy to poisoning and over-burning, easy to regenerate. In order to improve the catalytic efficiency, the pure metal catalysts are made into alloy catalysts (such as nickel aluminium alloy) and composite catalysts (ZieglerNatta). The composite catalyst is composed of main catalyst and co-catalyst. In the new efficient catalysts also add other components. The production and development of high efficiency catalyst have promoted the development of polymer materials, and produced much polymer function and structure material ,which is new generation of high performance and high added value.

With the extensive application of catalyst and a number of new catalysts, we can make a lot of new chemical reactions to achieve industrialization, in order to provide an increasing number of chemical products; also can make some of the original chemical reaction conditions have been improved, in order to improve the production efficiency and product quality, make full use of resources. The important subject in the field of modern chemistry and chemical research is to select and develop more and better catalyst for the new generation. But the role of a catalyst is not beneficial to humans, such as combustion products of supersonic jet fuel as a catalyst can cause the stratosphere (10 to 50 km altitude) decomposition of ozone in the atmosphere, to the sun's ultraviolet absorption decreased, resulting in some areas of skin cancer patients increased. Is developing a new supersonic jet fuel, its combustion products will not become a catalyst,which will cause the ozone decomposition catalyst in the stratosphere.

Additives are added in the industrial and agricultural production, especially in the chemical production of some of the auxiliary chemicals, its role is to improve the production process, improve product quality and yield, or to give the product a unique application performance.

Additive are large class of important chemical in the production of auxiliary raw materials, they can give a special performance to product, improve use of finished products; and can accelerate the chemical reaction rate, improve product yield; they can save raw materials, improve processing efficiency. Additives are widely used in the chemical industry, especially organic synthesis, synthetic material processing and petroleum refining, pesticide, medicine, dye, paint and other industrial sectors. Additives can be divided into synthesized additives and processing additives. Synthetic additives are used in monomer synthesis and polymerization of a variety of auxiliary agents in resin, fiber, rubber, etc. They include catalysts, initiators, solvents, dispersants, emulsifiers, polymerization inhibitors, regulators, termination agents, etc. Processing aid refers to the auxiliary chemicals used in the manufacture of raw rubber, plastics processing, chemical fiber spinning and spinning process, including plasticizers, heat stabilizers, antioxidants, light stabilizers , flame retardants, blowing agents, lubricants, mold release agents, curing agents, accelerators, softeners, anti-scorching agents, surfactants, oils, fillers, etc. In these additives, many of them are dangerous chemicals, Such as benzoyl peroxide, azobisisobutyronitrile, hydrogen peroxide - ferrous blue, alkyl aluminum chloride, titanium and other initiators, catalysts are inflammable and explosive materials, should be required to "chemical Dangerous Goods Safety Management Regulations", for storage, transportation, operation and use.

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Structure Chemical Name CAS MF
Glass beads Glass beads
Extreme pressure lubricant Extreme pressure lubricant
TRANS-DIAMMINEDINITROPALLADIUM(II) TRANS-DIAMMINEDINITROPALLADIUM(II) 28068-05-5 H4N4O4Pd
Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate 52829-07-9 C28H52N2O4
STK Acetylene Tackifying Resin STK Acetylene Tackifying Resin
SNT-2 Internal Demoulding Agent SNT-2 Internal Demoulding Agent
Rubber dispersant SNB-3 Rubber dispersant SNB-3
Rubber Tackfier SY-1309 Rubber Tackfier SY-1309
CELLULOSE CELLULOSE 9012-19-5 (C6H10O5)n
Polyether Sulfide Polyether Sulfide
Sulfonated Poly(Ether Ether Ketone) (abbreviated as SPEEK) Sulfonated Poly(Ether Ether Ketone) (abbreviated as SPEEK) 2024597-25-7
Calcium disodium edetate dihydrate Calcium disodium edetate dihydrate 23411-34-9 C10H14CaN2NaO9-
(3aS,4S,6aR)-Hexahydro-2-oxo-N-(15-oxo-3,6,9,12-tetraoxa-16-azanonadec-18-yn-1-yl)-1H-thieno[3,4-d]imidazole-4-pentanamide (3aS,4S,6aR)-Hexahydro-2-oxo-N-(15-oxo-3,6,9,12-tetraoxa-16-azanonadec-18-yn-1-yl)-1H-thieno[3,4-d]imidazole-4-pentanamide 1006592-45-5 C24H40N4O7S
Polyimide foam (aerospace-grade) Polyimide foam (aerospace-grade)
Industrial diesel ultra-deep hydrodesulfurization catalyst Industrial diesel ultra-deep hydrodesulfurization catalyst
Adamantane-PEG-Dopamine Adamantane-PEG-Dopamine
Tris[μ-[(1,2-η:4,5-η)-(1E,4E)-1,5-bis(4-methoxyphenyl)-1,4-pentadien-3-one]]di-palladium Tris[μ-[(1,2-η:4,5-η)-(1E,4E)-1,5-bis(4-methoxyphenyl)-1,4-pentadien-3-one]]di-palladium 52552-56-4 C57H60O9Pd2
Z-15-aMino-4,7,10,13-tetraoxapentadecacanoic acid Z-15-aMino-4,7,10,13-tetraoxapentadecacanoic acid 756526-00-8 C19H29NO8
Micron ruthenium powder Micron ruthenium powder
OC Catalyst OC Catalyst
Silicone gel for palladium removal Silicone gel for palladium removal
Petroleum resins Petroleum resins 68131-77-1
Palladium(1+), [2'-(amino-κN)[1,1'-biphenyl]-2-yl-κC][2'-(diethylphosphino-κP)-N2,N2,N6,N6-tetramethyl[1,1'-biphenyl]-2,6-diamine-κN2]-, methanesulfonate (1:1) Palladium(1+), [2'-(amino-κN)[1,1'-biphenyl]-2-yl-κC][2'-(diethylphosphino-κP)-N2,N2,N6,N6-tetramethyl[1,1'-biphenyl]-2,6-diamine-κN2]-, methanesulfonate (1:1) 2195390-10-2 C33H42N3O3PPdS
Cross-linking agent BIPB Cross-linking agent BIPB C6H4[C(CH3)2OOC(CH3)3]2
1H-Isoindole-1,3(2H)-dione, 2-(2,6-dioxo-3-piperidinyl)-4-[[2-[2-(2-propyn-1-yloxy)ethoxy]ethyl]amino]- 1H-Isoindole-1,3(2H)-dione, 2-(2,6-dioxo-3-piperidinyl)-4-[[2-[2-(2-propyn-1-yloxy)ethoxy]ethyl]amino]- 2138439-56-0 C20H21N3O6
Peptizer SJ-103 Peptizer SJ-103
Iron(1+), (.eta.5-2,4-cyclopentadien-1-yl)(1,2,3,4,5,6-.eta.)-(1-methylethyl)benzene-, hexafluorophosphate(1-) Iron(1+), (.eta.5-2,4-cyclopentadien-1-yl)(1,2,3,4,5,6-.eta.)-(1-methylethyl)benzene-, hexafluorophosphate(1-) 32760-80-8 C14H7F6FeP
Palladium, [μ-[1,1'-(1,4-butanediyl)bis[1,1-bis(1,1-dimethylethyl)phosphine-κP]]]dichlorobis(η3-2-propen-1-yl)di- Palladium, [μ-[1,1'-(1,4-butanediyl)bis[1,1-bis(1,1-dimethylethyl)phosphine-κP]]]dichlorobis(η3-2-propen-1-yl)di- 2756973-33-6 C26H50Cl2P2Pd2
[mPEG-DSPE] 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxypoly(ethylene glycol)] [mPEG-DSPE] 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxypoly(ethylene glycol)]
Bis(vinylsulfonyl)methane Bis(vinylsulfonyl)methane 3278-22-6 C5H8O4S2
α-Allyl-ω-succiniMidyl poly(ethylene glycol) α-Allyl-ω-succiniMidyl poly(ethylene glycol)
α-ForMyl-ω-hydroxyl poly(ethylene glycol) α-ForMyl-ω-hydroxyl poly(ethylene glycol)
2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine 2,4,6-tris(2,4-dihydroxyphenyl)-1,3,5-triazine 2125-23-7 C21H15N3O6
XPhos Pd G3 XPhos Pd G3 1445085-55-1 C46H62NO3PPdS
 	Silyl Acrylate Self-polishing Resin Silyl Acrylate Self-polishing Resin
O-(3-Carboxypropyl)-O'-[2-(3-MercaptopropionylaMino)ethyl]-polyethylene glycol Mw 5000 O-(3-Carboxypropyl)-O'-[2-(3-MercaptopropionylaMino)ethyl]-polyethylene glycol Mw 5000 1220112-75-3 (C2H4O)nC9H17NO4S
DICHLOROBIS(CHLORO-TERT-BUTYLCYCLOHEXYLPHOSPHINE) PALLADIUM (II) DICHLOROBIS(CHLORO-TERT-BUTYLCYCLOHEXYLPHOSPHINE) PALLADIUM (II) 1051923-92-2 C20H42Cl4P2Pd
TAMRA-PEG4-alkyne TAMRA-PEG4-alkyne 1225057-68-0 C36H41N3O8
PTFE ultrafine powder PTFE ultrafine powder
Sintering agent Sintering agent
Bromo-PEG2-CH2CO2tBu Bromo-PEG2-CH2CO2tBu 1807518-63-3 C10H19BrO4
Methylamino-PEG3-azide Methylamino-PEG3-azide 1355197-57-7 C9H20N4O3
mPEG-SG(mPEG-Succinimidyl Glutarate ester ) mPEG-SG(mPEG-Succinimidyl Glutarate ester )
Fmoc-NH-PEG-SH Fmoc-NH-PEG-SH
Alkyne-PEG-IA Alkyne-PEG-IA
Josiphos SL-J009-1 Pd G3 Josiphos SL-J009-1 Pd G3 1702311-34-9 C45H66FeNO3P2PdS10*-
Bromo-PEG6-azide Bromo-PEG6-azide 2062663-64-1 C14H29BrN3O6+
mPEG-TCO mPEG-TCO
Methotrexate PEG DSPE Methotrexate PEG DSPE
TCO PEG Biotin TCO PEG Biotin
UV 144 UV 144 63843-89-0 C42H72N2O5
Biotin-PEG6-NH2 Biotin-PEG6-NH2
SH-PEG6-N3 SH-PEG6-N3
IA-PEG4-Biotin IA-PEG4-Biotin
Dsixty five Dsixty five
D20 environmentally friendly solvent oil D20 environmentally friendly solvent oil
MS(PEG)24 MS(PEG)24
2-Allyloxy-1,3,5-tribromobenzene 2-Allyloxy-1,3,5-tribromobenzene 3278-89-5 C9H7Br3O
DBCO-PEG8-amine DBCO-PEG8-amine
4-HYDROXY-TEMPO 4-HYDROXY-TEMPO 2226-96-2 C9H18NO2*
DBCO-PEG12-O-NH2 DBCO-PEG12-O-NH2
Benzyl-PEG18-Br Benzyl-PEG18-Br
Fmoc-NH-PEG4-ACA Fmoc-NH-PEG4-ACA
4-ArmPEG-NTA 4-ArmPEG-NTA
4-ArmPEG-(3Alkyne-1NHS) 4-ArmPEG-(3Alkyne-1NHS)
SH-PEG-SS SH-PEG-SS
CHO-PEG-SCM CHO-PEG-SCM
COOH-PEG-HZ COOH-PEG-HZ
Biotin-PEG-Tretinoin Biotin-PEG-Tretinoin
BOC-NH-PEG-SG BOC-NH-PEG-SG
MTX-PEG-Mal MTX-PEG-Mal
c(RGDyk)-PEG-SH c(RGDyk)-PEG-SH
HZ-PEG-N3 HZ-PEG-N3
Cy3.5-PEG-SH Cy3.5-PEG-SH
NH2.HCl-PEG-NH2.HCl NH2.HCl-PEG-NH2.HCl
diamminebis(cyano-C)palladium diamminebis(cyano-C)palladium 15020-94-7 C2H6N4Pd
[ethylenebis[nitrilobis(methylene)]]tetrakisphosphonic acid, sodium salt [ethylenebis[nitrilobis(methylene)]]tetrakisphosphonic acid, sodium salt 22036-77-7 C6H16N2O12P4.4Na
Ruthenium target Ruthenium target
Alcohols, C9-11, ethoxylated Alcohols, C9-11, ethoxylated 68439-46-3
POLYPHOSPHORYLCHOLINE GLYCOL ACRYLATE POLYPHOSPHORYLCHOLINE GLYCOL ACRYLATE 67881-99-6 C11H22NO6P
TEREPHTHALYLIDENE DICAMPHOR SULFONIC ACID TEREPHTHALYLIDENE DICAMPHOR SULFONIC ACID 90457-82-2 C28H34O8S2
DOYLE DIRHODIUM CATALYST-RH2(4S-MEOX)4 DOYLE DIRHODIUM CATALYST-RH2(4S-MEOX)4 167693-36-9 C20H28N4O16Rh2
N,N-Diethylpropargylamine N,N-Diethylpropargylamine 4079-68-9 C7H13N
Diphenylmethylidene(cyclopentadienyl)(9-fluorenyl)zirconium dichloride Diphenylmethylidene(cyclopentadienyl)(9-fluorenyl)zirconium dichloride 132510-07-7 C31H22.Cl2Zr
Carbomer 956 Carbomer 956
1,2-DISTEAROYL-PHOSPHATIDYLETHANOLAMINE-METHYL-POLYETHYLENEGLYCOL CONJUGATE 1,2-DISTEAROYL-PHOSPHATIDYLETHANOLAMINE-METHYL-POLYETHYLENEGLYCOL CONJUGATE
SA-PEG-FITC SA-PEG-FITC
ROYCO 64 ADVANCED SYNTHETIC MULTI-PURPOSE AIRCRAFT GREASE ROYCO 64 ADVANCED SYNTHETIC MULTI-PURPOSE AIRCRAFT GREASE
Ultrafine Ruthenium Powder Ultrafine Ruthenium Powder
Nitrocellulose lacquer thinner Nitrocellulose lacquer thinner
[1,3-bis[2,6-bis(1-ethylpropyl)phenyl]-4,5-dichloro-imidazol-2-ylidene]-dichloro-(3-chloropyridin-1-ium-1-yl)palladium [1,3-bis[2,6-bis(1-ethylpropyl)phenyl]-4,5-dichloro-imidazol-2-ylidene]-dichloro-(3-chloropyridin-1-ium-1-yl)palladium 1435347-24-2 C40H54Cl5N3Pd
PLA-PEG-MAL PLA-PEG-MAL
Lecithins, hydrolyzed Lecithins, hydrolyzed 85711-58-6
dimethyl (p-methoxybenzylidene)malonate dimethyl (p-methoxybenzylidene)malonate 7443-25-6 C13H14O5
Polyester Polyester 113669-95-7 C4H10O2·
ALUMINUM STARCH OCTENYLSUCCINATE ALUMINUM STARCH OCTENYLSUCCINATE 9087-61-0
HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER HYDROXYETHYL ACRYLATE/SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER 111286-86-3 C12H22NNaO7S
PTFE dispersion JF-4DCA PTFE dispersion JF-4DCA
POLYCARBOMETHYLSILANE POLYCARBOMETHYLSILANE 62306-27-8 (C2H6Si)n
Silicone-based nano silver antibacterial agent Silicone-based nano silver antibacterial agent
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