RUBBER VULCANIZING ACCELERATOR NS Rubber Chemicals

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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 TBBS(NS)

 

Chemical Name: N-Tertiarybutyl-2-benzothiazole sulfennamide
Molecular Formula:C11H14N2S2     

Molecular Weight:238.37
CAS NO. : 95-31-8
 Executive standardGB/T21840-2008
Specification: 

Item

Index 

Appearance
(Visual inspection)

White or light yellow powder, granular 

Initial M.P,oC            ≥ 

104.0

Loss on drying, %         ≤ 

0.40

Ash, %                        ≤ 

0.30

Residues on 150μm sieve, %                           ≤

0.10

Insoluble in Methanol,% ≤

1.00

Free amine,%           ≤ 

0.5


Properties: White or light yellow powder, granular. The density is 1.26-1.32. Soluble in benzene, methylene chloride, carbon tetrachloride, ethyl acetate, acetone, ethanol, dissolved gasoline, do not dissolve in water, acid, dilute alkali solution.

Application: Provides fast cure rate and high modulus development in NR, SBR, BR and blends. Normally used alone or with small quantities of ultra accelerators in tire compounds or industrial rubber products low poison and high efficiency. It is good back up for NOBS. Be regarded as standard accelerator.

Packaging: 25kg plastic woven bag, paper with plastic film bag, Kraft paper bag or jumbo bag

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 is a catalyst?
A catalyst is a substance that increase the rate of chemical reaction without itself undergoing any permanent chemical changeb
Q:Describe the role of a catalyst..........?
a catalyst speeds up the reaction
Q:Is palladium predominantly a catalyst in chemistry?
Palladium in the chemical mainly to do the catalyst; palladium and ruthenium, iridium, silver, gold, copper and other alloy, can improve the palladium resistivity, hardness and strength, used in the manufacture of precision resistors, jewelry and so on.
Q:Will the catalyst change in the chemical reaction?
The role of catalyst refers to the chemical reaction in the catalytic role of the reagent, of course, the catalytic effect can be divided into two kinds, one is to speed up the progress of the reaction, one is to inhibit the progress of the reaction, the specific role of the catalyst to see the actual reaction needs.
Q:How are a catalyst and an intermediate similar? How are they different?
A catalyst speeds up the rate of a reaction by lowering the activation energy barrier which is, presumably, the energy required to achieve the reaction intermediate. Catalysts are also not consumed in the reaction, they are regenerated towards the end. A reaction intermediate is a configuration that a molecule takes prior to achieving it's lowest energy form which would signify the end of the reaction. Intermediate usually are hard to isolate because of the incentive to go to the most stable configuration. How are they different? A catalyst is not a part of the reaction product and it doesn't get consumed. An intermediate in a reaction is transformed into the product. How are they similar? Well, catalysts drive the reaction and make it easier for the reaction for follow through. Since intermediates are high energy and thermodynamics tells us that low energy is favorable, the incentive for a high energy intermediate to drive down to it's stable for can also drive a reaction. I hope that helps. I hope it makes sense.
Q:The quality and nature of the catalyst before and after the chemical reaction did not change this sentence wrong?
There is no wrong catalyst just to speed up the reaction
Q:Question about catalysts?
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:Is the enzyme in the enzyme bigger than gold?
No: A biological enzyme is a biocatalyst that is produced or extracted from a biological organism. The catalyst is a substance that accelerates the chemical reaction and does not change itself in the chemical reaction. In layman's terms, the catalyst is a special substance that catalyzes it. Enzyme as a member of the catalyst family has its own special properties. Each of the biological enzymes will only selectively react to some chemical reactions.
Q:What is a Catalyst?
Catalyst is such a chemical substance, which is used in a chemical reaction to increase/decrease the rate of the reaction and the reaction the substance remains intact.This is called Catalyst.For example, during preparation of Oxygen from potassium chlorate in the laboratory manganese-die-oxide is used as a catalyst.
Q:No one knows the expression of the catalyst and the chemical expression of the acridine
In organic reactions, the catalyst is complex and consists of several or more. Write Chinese characters directly.

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