RUBBER VULCANIZING ACCELERATOR MBS RUBBER CHEMICALS
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- Loading Port:
- Tianjin
- Payment Terms:
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- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 12000 m.t./month
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RUBBER VULCANIZING ACCELERATOR NOBS(MBS)
Chemical Name：N-Oxydiethylene-2-Benzothiazole Sulfenamide
Molecular formula： C11H12N2S2O
Molecular Weight:253.35
CAS NO. : 102-77-2
Executive standard：GB/T 8829-2006
Specification：
| Index | ||
High-class products | First-class products | Acceptable end-product | |
Appearance | Faint yellow or orange granules | ||
Initial M.P, oC ≥ | 81.0 | 80.0 | 78.0 |
Loss on drying, % ≤ | 0.40 | 0.50 | 0.50 |
Ash, % ≤ | 0.20 | 0.30 | 0.40 |
Insoluble in Methanol，% ≤ | 0.50 | 0.50 | 0.80 |
Free amine,% ≤ | 0.50 | ||
Purity,% ≥ | 95.0 | ||
Properties: Faint yellow to brown lamellae. 80°C melting point.soluble benzene; carbon tetrachloride; ethyl acetate; ethanol, soluble in dichloromethane; acetone, less petrol, do not dissolve in water. Heating gradual decomposition.
Application：It'after-effect quick accelerator. Scorching time is longer and the processing safety is good.
Packing: 25kg paper bag inner with PE 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 is the role of a catalyst in a chemical reaction?
- A catalyst speeds up a chemical reaction by providing an alternate reaction pathway with a lower activation energy. Since the activation energy is lower, more product will be formed in the same amount of time.
- Q: what is a catalyst ?
- catalyst is a substance that can cause a change in the rate of a chemical reaction without itself being consumed in the reaction; the changing of the reaction rate by use of a catalyst is called catalysis. Substances that increase the rate of reaction are called positive catalysts or, simply, catalysts, while substances that decrease the rate of reaction are called negative catalysts or inhibitors.
- Q: What is the catalyst condition in the chemical equation?
- I studied three methods ~ word which can be used to give me a mailbox to the word text to pass you ~
- 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: 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: The greater the chemical adsorption strength, the catalyst activity changes
- If the adsorbent is a reactant, then the better the adsorption capacity of the better catalytic effect; but the catalyst surface of the product will generally have adsorption, if this effect has become very strong, then desorption The process will become difficult, the catalytic effect will decline; the other one, if the adsorption of other substances, such as the reaction may produce a reaction or the catalyst will poison the material, it is greatly detrimental to the catalytic effect. The effect is to be controlled in a suitable optimum range for superior, and preferably to be selectively adsorbed.
- Q: Why extract the genome, the digestion is always not cut
- The enzyme, like the general catalyst, only catalyzes the thermodynamics of the permissible chemical reaction, shortening the time to reach the chemical equilibrium without changing the equilibrium point. The enzyme as a catalyst has no qualitative and quantitative changes before and after the chemical reaction. The mechanism of action of enzymes and general catalysts is to reduce the activation energy of the reaction.
- Q: Word editor when playing chemical equation = with the above conditions or how to adjust the size of the catalyst, how to make it centered,
- Open the word - insert - object - WPS3.0 formula - and then select the "label arrow template", you can add a catalyst.
- Q: Does all chemical reactions have a catalyst?
- Not some reaction without catalyst
- Q: Can you describe at least 4 ways a catalyst can lower the activation energy of a reaction?
- To see how a catalyst accelerates the reaction, we need to look at the potential energy diagram shown below which compares the non-catalytic and the catalytic reaction. For the non-catalytic reaction, the figure is simply the familiar way to visualize the Arrhenius equation: the reaction proceeds when A and B collide with succificient energy to overcome the activation barrier. The change in Gibbs free energy between reactants, A + B, and the product P is delta G. The catalytic reaction starts by bonding of the reactants A and B to the catalyst, in a spontaneous reaction. Hence, the formation of this complex is exothermic and the free energy is lowered. There then follows the reaction between A and B while they are bound to the catalyst. This step is associated with an activation energy; however, it is significantly lower than that for the uncatalyzed reaction. Finally, the product P seperates from the catalyst in an endothermic step. The energy diagram illustrates 4 ways the catalyst works : The catalyst offers an alternative path for the reaction that is energetically more favorable The activation energy of the catalytic reaction is significantly smaller than that of the uncatalyzed reaction; hence the rate of the catalytic reaction is much larger The overall change in free energy for the catalytic reaction equals that of the uncatalyzed reaction. Hence, the catalyst does not affect the equilibrium constant for the overall reaction. A catalyst cannot change the thermodynamics of a reaction but it can change the kinetics. The catalyst accelerates both the forward and the reverse reaction to the same extent. In other words, if a catalyst accelerates the formation of product P from A and B, it will do the same for the decomposition of P into A and B.
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RUBBER VULCANIZING ACCELERATOR MBS RUBBER CHEMICALS
- 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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