RUBBER VULCANIZING ACCELERATOR DCBS (DZ)

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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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Product Description:

RUBBER VULCANIZING ACCELERATOR DCBS (DZ) 

Chemical Name : N ,N-Dicyclohexyl-2-Benzothiazole sulfonamide
Molecular Formula: C19H26N2S2
Molecular Weight: 346.56
CAS NO. : 4979-32-2
Executive standardQB/DZ01-2008
 Specification:

Item

Index

Acceptable end-product

Appearance(Visual inspection) 

Light  yellow to light brown powder 

Initial M. P, oC                   ≥ 

98.0

Loss on drying,%                 ≥ 

0.50 

Ash,%                                ≤ 

0.50

Properties: Light yellow to light brown powder, the relative density of 1.2, soluble in benzene, dichloromethane, carbon tetrachloride, insoluble in gasoline, acetone, ethyl acetate and ethanol, insoluble in water. 

Application: DCBS is a sulfenamide accelerator with excellent anti-scorching property and delayed onset of cure. It is compatible with natural and synthetic rubbers, suitable for radial ply tyre, rubber belts and shock absorber, etc. Particularly it produces good adhesion to metal.

Packaging: 25kg plastic woven bag, paper with plastic film bag, 25kg drum.

Storage: The product should be stored in the dry and cooling place with good ventilation, avoiding exposure of the packaged product to direct sunlight. The validity is 1 year.

Note: The product could be ultra fine powder based on customer accurate requirement.

 


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Q:What makes an enzyme a catalyst?
It lowers the energy of activation for a specific chemical reaction. Best wishes.
Q:What is the effect of the catalyst in chemistry?
In fact, the catalyst in the chemical reaction is not the reaction of the role, but to play a role in accelerating the speed of chemical reaction, it is like a reaction to an hour, but joined a certain catalyst, the reaction speed A lot, as long as half an hour to react to play, the catalyst as long as properly handled, but also can be recycled, the students do not have any chemical changes
Q:What is the relationship between the chemical reaction rate and the number of activated molecules?
Nothing to do, but with the percentage of activated molecules, is proportional to
Q:What is a catalyst and what is it do?
by lowering the activation energy
Q:Does the nature and quality of the catalyst itself change before and after the chemical reaction?
No, but in some cases it may produce catalyst poisoning
Q:Can manganese dioxide do any catalyst for chemical reactions?
The catalyst is selective
Q:Chemical reactions in the presence of impurities will cause catalyst poisoning
Catalyst in use will be due to various factors and loss of activity, one of the important factors is poisoning. There are several possible reasons for the poisoning of the catalyst. The small amount of impurities contained in the original branch, or the strong adsorption (mostly chemical adsorption), or the chemical center of the active center, So that active center poisoning. In addition, there may be such poisons in the reaction product; in the preparation of the catalyst, the impurities contained in the carrier interact with the active component and may also poison the active center.
Q:Why are catalysts so effective in small amounts?
By definition, catalysts serve to accelerate certain chemical reactions, by lowering the activation energy required for them to proceed. They are not consumed by the reaction, which is why they are effective in small amounts.
Q:Horseradish enzyme catalyzed Luminol chemiluminescence reaction
Disinfectant ah ~ bleach ah ~ ~ take this kind of thing to wash the blood once something can interfere with Lumino identification. So that want to do bad things must be a good plan. Lumino in the presence of copper, copper alloy, horseradish or some bleach in the presence of fluorescence. So if the scene of the crime was bleached
Q:What are the properties of the catalyst (eg, specificity)?
The composition, chemical properties and quality of the catalyst itself do not change before and after the reaction; its relationship with the reaction system is as highly selective (or specific) as the relationship between the lock and the key. A catalyst is not for all Chemical reactions are catalyzed, for example, manganese dioxide in the thermal decomposition of potassium chlorate in the catalytic role to speed up the chemical reaction rate, but other chemical reactions do not necessarily have a catalytic effect.Some chemical reaction is not only a single catalyst, such as potassium chlorate Thermal decomposition can play a catalytic role in the magnesium oxide, iron oxide and copper oxide and so on.

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