RUBBER VULCANIZING ACCELERATOR·DPG (D) MODEL
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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RUBBER VULCANIZING ACCELERATOR-DPG(D)
Chemical Name: Diphenyl guanidine
Molecular Formula: C13H13N3
Molecular Weight：211.27
CAS NO。: 102-06-7
Executive standard：Q/CNPC55-2001
Specification
| Index | |
First-class products | Acceptable end-product | |
Appearance(Visual inspection) | white powder | Greyish-white powder |
Initial M.P, oC ≥ | 145.0 | 144.0 |
Loss on drying, % ≤ | 0.20 | 0.30 |
Ash, % ≤ | 0.30 | 0.40 |
Residues on 150μm sieve,% | 0.10 | 0.10 |
Residues on 63μm，% ≤ | 0.50 | 0.50 |
Properties: Grayish-white or white powder notaste, nontoxic . Density is 1.13--1.19. Soluble in acetone, ethyl acetate, benzene, alcohol, slightly soluble in carbon tetrachloride Insoluble in water and gasoline.
Application: mainly used for natural rubber syntheic the medium-speed accelerator. Used in thiazoles, Autumn Lamb, and the second category of iodine acid catalyst for the active agent, and agent for DM, TMTD used, can be used for continuous vulcanization. Mainly used in the manufacture of tires, plastic sheet, soles and industrial products, rigid and thick plastic products.
Packaging: Polypropylene knitted bags lined with polyethylene bags.Net weight 25kg per bag.
Storage: Keep container tightly closed in a cool, well-ventilated place. The recommended maximum storage life is 2 years when stored under normal conditions.
Note: The product could be oiled and pelleted apon customer request.
- Q: What is the superiority of the catalyst compared to the stoichiometric reagent?
- Efficient: The catalytic efficiency of the enzyme is higher than that of the inorganic catalyst, making the reaction rate faster;
- Q: Does a catalyst work for both reactants and products?From my understanding, organic catalyst or enzyme does not necessarily work for the product of the reaction because of the shape of the activation site. However I cannot speak for inorganic ones.
- A catalyst works for either the reactants or the product in a given reaction. If it works for the reactants then the activation site on the enzyme, for example, will only fit on the reactants. If a catalyst is added to a reaction in which it catalyzes the back-reaction, or it aids the products, then the reaction will be reversed. i don't think a catalyst could work for both the reactants and products in one reaction because it wouldn't really be a catalyst anymore; it wouldn't make the rxn progress any faster since it would be canceling out itself by aiding both the reactants and the products. I think this is what you are asking, if not please post more details. I hope I didn't confuse you even more!
- Q: The role and significance of chemical catalysts
- To speed up or slow down the chemical reaction is to make the chemical reaction more direct, simple and straightforward to adopt
- Q: Chemistry why the catalyst can be equal to speed up the positive reaction rate
- Since the catalyst only changes the activation energy and the amount of reactivity can be reduced, the amount of reaction energy is also reduced. Therefore, a positive catalyst is also a good catalyst for its reaction. Speed up the same multiple.
- Q: Could you please explain it, i know they increase reaction rates but how?
- A catalyst lowers the activation energy (the minimum amount of energy needed for a reaction to take place). This means that the particles can react with less energy than they needed before the catalyst was added. (Think about it: if the government lowered the legal age to buy cigarettes, then more people could legally buy cigarettes. Similarly, if we lower the amount of energy needed for particles to react, then more particles can react). Also, a catalyst provides a surface on which the reaction can take place. This increases the number of collisions between the particles of the substances that are reacting.
- Q: What is the definition and function of the catalyst in chemistry?
- Definition: in the chemical reaction can change the chemical reaction rate of other substances, and its own quality and chemical properties before and after the reaction did not change the material called catalyst, also known as catalyst. The role of the catalyst in the chemical reaction is called catalysis. The use of a catalyst only changes the rate of chemical reaction and does not alter the quality of the product.
- Q: What is the quality of the catalyst in the chemical reaction, for example, 34.3 g before the hydrogen peroxide reaction, 32.7 g after the reaction, and how much is the catalyst mass?
- You can not calculate this question, the quality of the catalyst before and after the same reaction, how much reaction before the reaction on how much
- Q: What is a chemical catalyst?
- A substance that participates in chemical reactions but does not change the quality and chemical properties. It can change the reactant activation energy, speed up or slow down the reaction rate.
- Q: hey people i need your help about my science lab report...the question on my paper says "what function the catalyst?....please help me on this one...i would really appreciate if you leave me answers....much mahalos to all you folkss...thanks
- lowers the activation energy of a reaction so it happens at a faster rate
- Q: woulld you be able to answer these aswell i really dont know how to do this cehmestryExplain how, and why, an atom of chlorine (Cl) and an atom of lithium (Li) would form a chemical bond with each other. (iii)Explain what is meant by electronegativity and how it can be used to determine the nature of a chemical bond. (iv)Write a note outlining what is meant by vapor pressure and explain how the concept is used to define the boiling point of a liquid.
- Because of the production of photochemical oxidants from NOx reacting with hydrocarbons in sunlight Noxer blocks are used to rid the NOx from the surroundings through The titanium dioxide (TiO2) on the bocks absorbs ultra-pink radiation from daylight which excites its electrons to a bigger orbital. On the outside of the crystals of TiO2 a reaction happens between oxygen and a high power electron from the TiO2. O2 + e? --O2 ? The excessive vigor electron is then given back to the TiO2 when water then reacts with the oxygen to present H2 O + O2 --H+ + O2 ? + OH Nitrogen dioxide is oxidised to nitrate ions as a result of the hydroxyl radical being an awfully strong oxidising agent NO2 + OH --H+ + NO3 ? The superoxide from response 3 also varieties nitrate ions from nitrogen monoxide. NO + O2 ? --NO3 ? This nitrate is washed away through rain or combines with the concrete within the block.
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RUBBER VULCANIZING ACCELERATOR·DPG (D) MODEL
- 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
OKorder Financial Service
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