RUBBER VULCANIZING ACCELERATOR MBS RUBBER CHEMICALS

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Tianjin
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
12000 m.t./month

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Product Description:

RUBBER VULCANIZING ACCELERATOR NOBS(MBS)

Chemical NameN-Oxydiethylene-2-Benzothiazole Sulfenamide
 Molecular formula: C11H12N2S2O
 Molecular Weight:253.35
CAS NO. : 102-77-2 
Executive standardGB/T 8829-2006
Specification: 


Item 

Index

High-class products

First-class products

Acceptable end-product

Appearance
(Visual inspection)

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. 

ApplicationIt'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. 

 


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Q:How does oxygen sensor affect catalyst converter?
With a four cylinder engine, the code definition should have read: B1S1 (for the upstream sensor responsible for fuel/air ratio monitoring) or B1S2 (for the sensor downstream of the catalytic converter, which only monitors that part). If you changed the front (S1) sensor and you still have a code for it, save your old sensor as there may be nothing wrong with it. If the code is for the O2 sensor heater, check your fuses. If not, the code is probably a symptom of another problem, such as a misfire, restricted fuel filter or intake air leak. Is this the same code you got previously? Did you install a direct-fit replacement or a universal sensor that had to be configured for your honda's wiring connector?
Q:What is the effect of increasing the amount of catalyst added to a solution?
Catalyst do not participate in the reaction but it speeds up the reaction. If you increase the amount of catalyst from the required amount, it would somehow negates its positive response or it would result in producing another product.
Q:how do catalysts help in green chemistry?
Catalysts allow more efficient conversion of products in irreversible reactions, or they allow for the faster attainment of equilibrium in equilibrium reactions, thereby reducing time, raw material waste and emissions. Also, because catalysts are reusable, they can be recycled.
Q:What is chemical adsorption and its relationship with heterogeneous catalysis
The catalytic cycle includes five steps: diffusion, chemical adsorption, surface reaction, desorption and reverse diffusion.The chemical adsorption is an important part of the heterogeneous catalysis process, and the adsorption of the reactants on the catalyst surface,
Q:what is a catalysts and how can they be useful?
A catalyst is a substance that speeds up the rate of a chemical reaction with itself being chemically unchanged at the end of the reaction. They are useful as they help to lower the minimum amount of energy needed ( also known as activation energy) to start the reaction. Hence, by lowering the activation energy of the reaction, they help to speed up the rate of reaction. For example, in the Haber process for the manufacture of ammonia, the catalyst iron is added to speed up the rate of reaction between hydrogen gas and nitrogen gas. Otherwise, the reaction would have proceeded much more slowly. Another example is the catalyst nickel used in the manufacture of margarine and vanadium (V) oxide for manufacturing sulfuric acid. As catalyst remain chemically unchanged after a reaction, they can be reused again and hence, they are required in minute amounts. An example is the washing powder used in washing clothes, they help to remove food stains by digesting the proteins in food. They can be reused after each reaction and hence, you do not need to add in the whole packet of washing powder but only a few spoonful.
Q:Does the catalyst affect the chemical reaction rate constant?
The catalyst will change the rate constant
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
I have a friend working in Hunan, inquire, as if the piece of PT has the most advanced equipment ,,, you can hit 114 inquiries ~!
Q:explain how a catalyst can affect the rate of reaction but not be in the overall equation.?
Catalysts act to increase the rate of reaction, for example by providing an alternative reaction pathway which lowers the activation energy of the reaction i.e. increasing the likelihood of successful collisions between the reactants. However, they are not used up during the course of the reaction, and at the end you have exactly the same mass of catalyst as you started with, unlike the reactant(s), which will be used up to form product(s). So, the overall equation of the reaction does not include the catalyst because it only needs to show the substances which are used up or formed during the course of the reaction i.e. the reactants and products.
Q:Chemical catalyst
There are positive catalyst and anti-catalyst, as well as the amount of catalyst is also related to the rate, not the more the better

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