Rubber Chemcials Rubber Antioxidant PAN (A)
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- Loading Port:
- Tianjin
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- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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PAN (A)
Chemical Name:N-Phenyl-α-naphthylamine
Molecular Formula:C16H13N
Molecular Weight: 219.28
CAS NO.：90-30-2
Executive standard:GB/T 8827-2006
Specification:
| Index |
Appearance: | Yellow or purple flake |
solidifying Point.℃ ≥ | 53.0 |
Free amine (phenyl amine)% ≤ | 0.20 |
Volatile,%≤ | 0.3 |
Ash,% ≤ | 0.10 |
Properties: Yellow or purple flake. melting point 62℃,boiling point 335℃,flash point 188℃, relative density 1.16-1.17, Soluble in acetone, benzene, ethanol, carbon tetrachloride, chloroform, soluble in gasoline, insoluble in water. Exposure to sunlight and air in the Gradient purple, flammable.
Applications: This product is commonly used in tire, hose, tape, rubber, adhesive tape products, as well as a variety of other industrial rubber products dark antioxidant, may also be used as stabilizer in the styrene-butadiene rubber.
Packing:Polypropylene knitted bags lined with polyethylene bags.Net weight 25kg per bag.
Properties: The product should be stored in the dry and cooling place with good ventilation. The product should be avoid hot sunshine.
- Q: What are the examples of chemical catalysts used in life?
- Clothing. "New synthetic fiber made of clothing, soft and comfortable and cheap and durable. Cloth from natural fibers to man-made fibers, and then to the development of synthetic fibers, dyes from the original natural dyes to the current synthetic dyes, reactive dyes , All reflect the contribution of chemistry to the development of clothing, chemical clothing from the initial cover utility, into today's beautiful, convenient, with a special function of the utility, it greatly enriched the style of clothing, material, use
- Q: The addition of the catalyst has no effect on the chemical equilibrium of the movement
- The essence of chemical equilibrium is a dynamic equilibrium. Under certain conditions, the equilibrium constant of the reaction is a certain value. The role of the catalyst is to reduce the activation energy required for the reaction, increase the number of activated molecules, and increase the number of molecules per unit time , But the positive reaction is positive for the reaction, so do not change the speed.
- Q: what is metallocene catalyst technology?
- Metallocene catalyst A transition-metal atom sandwiched between ring structures having a well-defined single catalytic site and well-understood molecular structure used to produce uniform polyolefins with unique structures and physical properties. See also Catalysis; Coordination chemistry; Coordination complexes; Metallocenes; Organometallic compound. In the early 1980s, W. Kaminsky discovered that an appropriate co-catalyst activated metallocene compounds of group 4 metals, that is, titanium, zirconium, and hafnium, for alpha-olefin polymerization, attracting industrial interest. This observation led to the synthesis of a great number of metallocene compounds for the production of polymers already made industrially, such as polyethylene and polypropylene, and new materials. Polymers produced with metallocene catalysts represent a small fraction of the entire polyolefin market, but experts agree that such a fraction will increase rapidly in the future. See also Polymer; Polymerization; Polyolefin resins.
- Q: A catalyst elevates the rate of a reaction by?
- reducing the energy required for the reactants to reach the transition state.
- Q: I dont know what it is but when i open up my computer it comes up and it says that its not working? so i really dont know what to do.
- ATI Catalyst Control Centre is a control program for ATI graphics cards. If you have an ATI graphics card, go to the ATI website and download and reinstall the program.
- Q: about 1-3 sentences on this will do thank you
- since enzymes are found in the body,earlier they were belived to be related to life processes. however the organic molecules can also be produced outside the body through inorganic processes. a catalyst helps in speeding up the reaction.here the enzymes play as catylyst in the body for various metabolic pathways.
- Q: Will the catalyst change in the chemical reaction?
- In fact, there are two kinds of catalyst mechanism, one is not a chemical reaction, the reaction did not occur throughout the chemical reaction, the catalyst did not change; one is involved in the reaction process, but the final production of the catalyst, which The class reaction generally occurs in a stepwise chemical reaction.
- Q: High school stage which organic chemical reactions do not use catalyst
- Aldehyde and silver ammonia solution reaction, and the new system of Cu (OH) 2 reaction.
- Q: What is the relationship between the catalyst and the chemical reaction? What is the relationship between the enzyme and the catalyst?
- Enzyme is a biocatalytic biological biomolecule, a biocatalyst that accelerates the rate of biochemical reactions without changing the direction and product of the reaction. That is, enzymes can only be used to change the speed of various biochemical reactions, but not the biochemical reaction itself. Enzyme is a kind of amino acid composed of a special biological activity of the substance, which exists in all live animals and plants, is to maintain the normal function of the body, digest food, repair tissue and other life activities of a necessary material.
- Q: Just something I've always wondered about...
- transition okorder /... for ex-- X (one reactant) + catalyst(transition element) ------X.catalyst(intermediate unstable compound) X.catalyst + Y (other reactant) --------XY(product) + catalyst how the change in oxidation state of transition elements helps the reacton through the formation of intermediates may be seen from reaction in between SO2 and O2 to form SO3 in presence of V2O5 ... V2O5 + SO2 ------V2O4 + SO3 2V2O4 + O2 ------2V2O5 in the above reaction vanadium changes its oxidation state from +5 to +4 and again to +5.. another example is reaction in between iodide and persulphate ions in presence of Fe(III) as catalyst... 2I(-) + S2O8(2-) ---------I2 + 2SO4(2-) (Fe(III) is present as catalyst) the reaction is believed to take place as follows: 2Fe(3+) + 2I(-) ------2Fe(2+) + I2 2Fe(2+) + S2O8(2-) ------2Fe(3+) + 2SO4(2-) (3)in number of cases transition elements provide a suitable large surface area with free valencies on which reactants are absorbed ...as a result concentration of reactants on surface of catalysts increases..hence rate of reaction increases...this is known as adsorption theory.... according to adsorption theory : there are free valencies on surface of solid transition metals because of the incomplete d-subshelll.. so the mechanism of catalysis involve followin five steps: (1) diffusion of reactant molecules towards surface of catalyst... (2) adsorption of reactant molecules on surface of catalyst by forming loose bonds with catalyst due to free valencies... (3)occurence of chemical reactions between reactant and catalyst forming an intermediate.. (4)desorption of product molecules from surface due to its lack of affinity for the catalyst surface thereby making the surface free for fresh adsorption of reactant molecules... (5)diffusion of product molecules away from surface of catalyst...
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Rubber Chemcials Rubber Antioxidant PAN (A)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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