Rubber Chemcials Rubber Antioxidant PAN (A)

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Tianjin
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25 m.t.
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12000 m.t./month

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Product Description:

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:


Item

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.



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Q:Will the chemical catalyst not reduce that?
Why is it done? Although the catalyst does not react chemically, the catalyst itself is deteriorated and is not always used
Q:Manganese dioxide can be used as a catalyst for various chemical reactions
The reactor may be a reactant,
Q:The concept of catalyst in high school chemistry
The catalyst is selective, that is, a catalyst that catalyzes only one or more chemical reactions and does not catalyze all chemical reactions. However, a chemical reaction of the catalyst may be a variety of, such as hydrogen peroxide to produce oxygen in the reaction, in addition to the use of manganese dioxide as a catalyst, you can also use copper oxide, iron oxide as a catalyst. Building on the use of cement, red brick powder also catalyze the decomposition of hydrogen peroxide.
Q:The best use of chemical catalysts
Do not know what you want to use the best thing is what the catalyst is generally used in the process, there will be an initial induction period, the catalytic activity is relatively low, and then reached a stable catalytic state, this paragraph is generally called the catalyst life, the final Due to poisoning, active ingredient aggregation and so on factors, the catalyst activity will be reduced, then need to replace the new catalyst
Q:Why is the catalyst in the chemical balance, the rate of change and balance?
Plus the catalyst, but only to change the activation energy of the reaction, so that more molecules at the same time to participate in the reaction.
Q:PT / AL_203 catalyst and the main chemical use
Yueyang Eagle Hill Petrochemical Plant
Q:why are enzymes called catalysts?
by definition a catalyst is a substance that alters the cost of, or makes accessible, a chemical or biochemical reaction yet maintains to be unchanged on the tip of the reaction. Enzymes are the only organic biochemical catalysts. Ribozymes are a particular sort of enzymes. certainly, the definition of enzyme rates: organic and organic catalyst produced in cells, and able to dashing up the chemical reactions mandatory for all times. they're great, complicated proteins, frequently soluble, and are noticeably specific, each and every chemical reaction requiring its very own specific enzyme. The enzyme's specificity arises from its energetic website, a community with a shape such as portion of the molecule with which it reacts (the substrate). the form of the enzyme the place the chemical binds in straightforward terms facilitates the binding of that distinctive chemical, such as a particular key in straightforward terms working a particular lock (the lock and key hypothesis). The enzyme and the substrate slot jointly forming an enzyme–substrate complicated that facilitates the reaction to ensue, and then the enzyme falls away unaltered. In prepare maximum catalysts are used to velocity up reactions. There are different non-organic and organic catalysts. maximum of that are utilized in industry and are commonly transition metals or their compounds.
Q:Is it not the rate to accelerate the addition of the catalyst to the catalyst, and that is why the balance does not move
In the chemical equilibrium, after adding the catalyst, the positive and negative reaction rate increases equally, but the positive reaction rate is still equal to the reverse reaction rate, so the balance does not move
Q:Is the catalyst considered a chemical reaction?
The middle school textbook defines that the catalyst itself does not participate in chemical reactions
Q:Name one case in which catalyst poisoning is useful?
Usually, catalyst poisoning is undesirable as it leads to a loss of usefulness of expensive noble metals or their complexes. However, poisoning of catalysts can be used to improve selectivities of reactions. In the classical Rosenmund reduction of acyl chlorides to aldehydes, the palladium catalyst (over barium sulfate or calcium carbonate) is poisoned by the addition of sulfur or quinoline. This system reduces triple bonds faster than double bonds allowing for an especially selective reduction. Lindlar's catalyst is another example — palladium poisoned with lead salts. As described by its inventor,[1][2] the catalyst is prepared by reduction of palladium chloride in a slurry of calcium carbonate followed by adding lead acetate. By this approach, one obtains a catalyst with a large surface area. Further deactivation of the catalyst with quinoline enhances its selectivity, preventing formation of alkanes. An example of alkyne reduction is the reduction of phenylacetylene to styrene.[1] en.wikipedia.org/wiki/Lindlar%27s...

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