RUBBER VULCANIZING ACCELERATOR (DM) Chemicals

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Loading Port:
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 MBTS(DM)

Chemical Name: Dibenzothiazole disulfide
Molecular Formula: C14H8N2S4
Molecular Weight:332.50
CAS NO. : 120-78-5
 Executive standardGB/T 11408-2003
Specification: 


Item 

Index 

High-class products

First-class products

Acceptable end-product

Appearance(Visual inspection)

White or light yellow powder, granular 

Initial M.P, oC               ≥ 

170.0

166.0

162.0

Loss on drying, %      ≤ 

0.30

0.40

0.50

Ash, %                           ≤ 

0.30

0.50

0.70

Residues on 150μm sieve%                       ≤

0.00

0.10

0.10

Properties: white or light yellow powder (granule) with a little bitter, no poison. The density is 1.50, Melting point above 170℃,slightly soluble in benzene, chloroform and ethanol, is not soluble in water petrol. And ethyl acetate. Good storage stability.

Application: Given flat, moderately fast cures in NR and SR. Also used in a wide range of general purpose rubber. Non-staining and non-discolouring in "white" socks; used as a plasticizer and retarder in polychloroethylene rubber. Secondary acceleration is usually required for synthetic polymers. Better scorch safety than MBT.

Packaging: 20kg plastic woven bag, paper with plastic film bag, kraft paper bag or jumbo bag.

Storage: e 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 2 years.

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


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Q:what is a catalyst?
Somthing that helps to speed things up. example: an enzyme is a biological catalyst, it speeds things up
Q:What does what does catalyst mean?
a catalyst enables a reaction to occur quicker, by lowering the activation energy, and finding it an alternate path way to react. example of a catalyst is an enzyme, found in our saliva, it helps us digest our foods, by breaking it down into smaller pieces.
Q:Chemical catalyst
The quality of the catalyst before and after the reaction
Q:Palladium is the main 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. While the most common and most commercially available palladium jewelery is palladium.
Q:Is it not the rate to accelerate the addition of the catalyst to the catalyst, and that is why the balance does not move
In the chemical equilibrium, after adding the catalyst, the positive and negative reaction rate increases equally, but the positive reaction rate is still equal to the reverse reaction rate, so the balance does not move
Q:Co and No form a chemical equation for Co2 and No2 under the action of a catalyst
2CO + 2NO == N2 + 2CO2
Q:How does active charcoal catalyze in some chemical reactions?
Generally not, but it can be used as a catalyst carrier
Q:What are catalysts?
Something that can cause a reaction, speed up or slow down a reaction, without changing itself.. structure yea..
Q:Exemplify the use of green catalysts in green chemistry
Photocatalytic water generates oxygen and hydrogen
Q:The greater the chemical adsorption strength, the catalyst activity changes
If the adsorbent is a reactant, then the better the adsorption capacity of the better catalytic effect; but the catalyst surface of the product will generally have adsorption, if this effect has become very strong, then desorption The process will become difficult, the catalytic effect will decline; the other one, if the adsorption of other substances, such as the reaction may produce a reaction or the catalyst will poison the material, it is greatly detrimental to the catalytic effect. The effect is to be controlled in a suitable optimum range for superior, and preferably to be selectively adsorbed.

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