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 makes an enzyme a catalyst?
D: it quickens a chemical reaction yet isn't completely replaced by skill of the reaction this is a standard definition of the understanding catalyst that a biologist gave: A chemical/substance that alters the fee of a chemical reaction yet isn't used up interior the technique.
Q:What is the principle of the catalyst?
The principle of the catalyst: the catalyst is mainly by reducing the activation energy, so that the reaction is easy to carry out, so as to achieve the catalytic effect.
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:Manganese dioxide can be used as a catalyst for various chemical reactions
The reactor may be a reactant,
Q:What chemical reactions can water do the catalyst?
Many solid and solid reactions can be converted into reactions between liquids, which speeds up the reaction rate, and perhaps the water here is the catalyst.
Q:Explain, using an example, how a heterogeneous catalyst works?
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.
Q:What is the difference between biological enzymes and chemical catalysts?
Biological enzymes are an environmentally friendly biocatalyst with greater superiority. Such as the reaction speed, processing conditions (such as temperature, PH value, etc.) more moderate, safe and easy to control the operation and can replace the strong alkali and other chemicals. The biological enzymes act only on specific substrates, with little damage to the substrate and the biodegradation of the treated wastewater to reduce water and energy consumption. After more than a century of research by scientists, more than 3,000 known enzymes are generally considered. The application of biological enzymes in the textile industry, initially the application of α-amylase in cotton fabric desizing process, and later developed into the cellulase used in denim washing and bio-polishing process, and now the development of pectinase to the biological scouring Technology, hydrogen peroxide enzyme catalytic decomposition technology, protease in silk and wool fiber applications
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:Chemical catalyst in several ways
From the mechanism of the words of some of the adsorption is such as catalytic hydrogen in the Pt gas
Q:Name 3 everyday catalysts?
Hello ; Chemical catalysts are substances that increase the rate of reaction (while remaining themselves chemically unchanged: Polyethylene, the polymer used to make everything from: 1. garbage bags and 2. grocery bags, to 3. squeezable bottles, to 4. cable insulation, is made by passing ethylene gas over a catalyst. Most other polymers are made in the same (or similar) way. Synthetic rubber, nylon, polyester, PVC, teflon, etc. It's not hard to think of 10 uses for these catalyst-produced materials alone... e.g. : 5. rain coats 6. pantyhose 7. water pipes 8. bouncy balls 9. non-stick surfaces and pads 10. saran wrap 11. food containers 12. cell-phone and laptop cases 13. cheap wigs 14. fishing line... 15. Enzymes are Biological catalysts: 16. beer and 17. bread are typically made with yeast, a living organism containing enzymes I hope this helps!

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