Rubber Chemcials Rubber Antioxidant PBN (D)
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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PBN (D)
Chemical name：N-Phenyl-β-Naphthylamine
Molecular formula：C16H13N
Molecular Weight: 219.29
CAS NO.：135-88-6
Executive standard：Q/12HG 4521-2001
Specification：
| Index |
Appearance: | Light gray or brown powder |
Soften Point,℃ ≥ | 105.0 |
Loss on drying,%≤ | 0.20 |
Ash,%≤ | 0.20 |
Screen residue (100meshes),% ≤ | 0.2 |
phenyl amine content | No blue and purple reaction by testing |
Magnet object content ,% ≤ | 0.008 |
Properties: Light gray powder, the temperature of 108℃, the boiling point of 395.5℃, the relative density of 1.18. Extreme soluble acetone, ethyl acetate, methyl chloride, benzene, carbon disulfide, soluble in alcohol, carbon tetrachloride, is not soluble in water and petrol. Exposure to the air and sunlight will gradually become red ash.
Applications: The product is mainly used for natural and synthetic. Used in tyres, rubber belts, rubber shoes and so on.
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:It is best to tell me what the role of sulfuric acid in these reactions, respectively
- Esterification reaction (dehydration), nitration (dehydration, concentrated nitric acid), carbonation reaction or dehydration reaction (organic matter in sulfuric acid blackening, dehydrating agent), sulfonation reaction (dehydrating agent), ethylene (dehydrating agent).
- Q:Please help me
- catalyst are enzymes that increase the rate of a reaction. they both are proteins. so basically, a catalyst is an enzyme that increases the rate of a reaction.
- Q:Nitrogen and hydrogen in the role of high temperature and pressure catalyst to generate ammonia chemical equation
- N2 + 3H2 = catalyst, high temperature and high pressure = 2NH3
- Q:How the catalyst accelerates the chemical reaction
- Reduced the activation energy required to reflect
- 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:The future direction of employment how, in what kind of units to do what work, how the closure rate? The
- Generally in the chemical plant to do engineering design engineers, the past few years, science and engineering graduates generally do not worry about work.
- Q:Chemical master invited (about catalyst)
- From the thermodynamics can be reaction, and the three formulas can be added to eliminate the intermediate product, indicating that the reaction may occur. The definition of the catalyst is not complete. I am a junior undergraduate student of Jilin University School of Chemistry, according to the definition of the catalyst in the university textbook, the catalyst itself reacts with the reactants to produce unstable intermediates. After the reaction is finished, the intermediate product is explained and the catalyst is reduced. Apparently did not participate in the reaction. So the catalyst to change the course of the reaction, the original reactants to go through a relatively high energy to produce products, there will be a catalyst after a few relatively low energy barrier, so much easier, the reaction rate is greatly accelerated The It can be seen, the catalyst is not no response, but only after the completion of the reaction to restore it. It can also be seen that the amount of catalyst does not matter, and some reactions require the amount of catalyst to be approximately equal to the amount of reactants. Waiting for you to high school and university to further study on this issue will have a more clear understanding of the.
- Q:What is the principle of catalyst reaction rate in chemical reactions?
- Whether the chemical reaction can be carried out according to the change of free energy, but only according to the change of free energy can not determine whether the reaction can be completed, because the chemical reaction is also completed by the reaction of the energy barrier, that is, if the reaction energy barrier is high, To provide some energy, across the barrier, to complete the reaction. The energy barrier is called activation energy. And the role of the catalyst is to reduce the activation energy, so that in a relatively harsh environment, chemical reaction occurs.
- Q:how a catalyst can provide a new route in forming the product?
- A catalyst may provide a new route in forming a product. Often the reactants have too much energy and bounce off of each other forming few products. The catalyst may provide a surface where the reactants can settle momentarily in close proximity completing the reaction at an increased rate. The catalyst has been pictured (for illustration only) as a surface filled with grooves and when the reactants settle within the grooves (forming a film?) they are close enough to react rather than bounce off of each other. As such the catalyst facilitates the reaction without being used up in the reaction. The catalyst may become 'poisoned' with other molecules that interfere with the desired reaction and the reactants may have to be relatively pure to protect the catalyst.
- Q:To write a 1500 words of small papers, so please help you busy
- Change the course of the reaction
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Rubber Chemcials Rubber Antioxidant PBN (D)
- 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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