Ref Price:
Loading Port:
Payment Terms:
Min Order Qty:
25 m.t.
Supply Capability:
12000 m.t./month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:



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

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



(Visual inspection)

White or light yellow powder, granular 

Initial M.P,oC            ≥ 


Loss on drying, %         ≤ 


Ash, %                        ≤ 


Residues on 150μm sieve, %                           ≤


Insoluble in Methanol,% ≤


Free amine,%           ≤ 


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.


Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What are the requirements for the catalyst for the chemical industry?
Generally find a few, according to the cost and cost of cost, choose cost-effective
Q:What happens to the rate of a reaction when the concentration of a catalyst is doubled?
A catalyst speeds up a chemical reaction by providing an alternate reaction pathway with a lower activation energy, thus increasing the number of collisions that can result in the formation of product. When the catalyst is a reactant in the rate determining step, and the reaction is first order in the catalyst, then a doubling of the concentration will double the rate. But if the rate determining step which includes the catalyst is not first order, then doubling the concentration won't double the rate. Then there is the case of a heterogeneous catalyst in which the reaction is essentially zero order in the catalyst. The amount of catalyst won't affect the speed of the reaction beyond the initial increase. The mere fact that the catalyst is present speeds up the reaction.
Q:what function does catalyst have?
lowers the activation energy of a reaction so it happens at a faster rate
Q:What is the nature of the catalyst before and after the chemical reaction?
Chemical properties do not change better. Some properties of the catalyst may change before and after the reaction. If the experiment proves, the state of the catalyst before and after the reaction changes, and some changes from powder to powder.
Q:Nitrogen and hydrogen in the role of high temperature and pressure catalyst to generate ammonia chemical equation
N2 + 3H2 = catalyst, high temperature and high pressure = 2NH3
Q:reactants are constant or the quality and chemical properties of the catalyst are constant?
The quality and chemical properties of the catalyst are unchanged
Q:What are the catalysts for making oxygen in chemistry? (At least 8 listed)
Manganese dioxide, iron oxide (red brick powder), copper oxide, ferrous oxide, iron oxide, activated carbon, egg shell, fresh liver, raw potato chips, etc.
Q:catalyst and reagents ???
Believe me, nema, there's no way that we chemists know the best catalyst for every reaction. That would be simply impossible. However, from the type of reaction, the reactants, products, reaction conditions, solvents, etc. and from one's experience and the literature (papers and patents) one can get a good idea for most reactions of the type of catalyst that has worked for similar systems. One then starts off with a catalyst from the literature and modifies or changes it if improvement is needed based on chemical principles that one learns. There are also some theoretical calculations that can be made. Sometimes they work and sometimes they don't :) If it is an industrially important process like the Haber process for making ammonia from nitrogen gas and hydrogen gas, there may be thousands of catalysts which have been tried and evaluated. New minor improvements are being made every day. When a company does find a very good catalyst for an important reaction, often they keep it a trade secret. The good catalyst can make a huge difference in how commercially successful a particular process is. That's a large part of what chemical engineers do. You may never know if you have the best catalyst. The most you can hope for is one that is good enough. So it's a few parts personal knowledge, a few parts literature, a couple of parts theory, a lot of experimentation and often, more than not, a little luck. :)
Q:Question about catalysts and their function.?
Catalysts, as enzymes, only change the activation energy (the energy the compound needs to gain to transform into products), they don't change the Gibbs energy values of reactants nor products. Therefore, if the delta G of the reaction is positive, it'll still need free energy to complete. They make a reaction complete faster than in normal conditions, but don't change the actual possibility for that reaction to happen. In the human body, a lot of reactions of catabolism have a positive G value and these reactions needs to get energy from other coupled reactions that have a negative value, so the total value is still negative. Many of them use hydrolysis of ATP to provide that energy, as its hydrolysis is about -30 kJ/mol in physiological conditions. I don't know what class you're in to ask this question, so can't really know if this answer is too simple or complicated for u... sorry in advance! Joël
Q:What is the nature of the chemical catalyst?
Can only speed up or slow down the reaction rate, can not change the reaction balance,

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range