RUBBER VULCANIZING ACCELERATOR ·ETU(NA-22)

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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 ·ETU(NA-22)

 

Chemical Name: Ethylene thiourea
Molecular Formula: C3H6N2S              
 Molecular Weight: 102.17
CAS NO. : 96-45-7
Executive standard: HG/T2343-92 
Specification: 

Item

Index

Top Grade

First grade

Qualified Grade

Appearance
(Visual inspection)

white powder 

 Initial M.P, oC        ≥

195.0

193.0

192.0

Loss on drying, %   ≤

0.30

0.30

0.50

Ash, %                  ≤

0.30

0.30

0.50

Residues on 150μm sieve, % ≤               

0.50

0.10

0.10

Properties: White powder. Little bitter. Density is 1.42-1.43. Soluble in wateralcohol, ethylene glycol and pyridine, do not dissolve ether, benzene, chloroform and petroleum ether.  No pollution to final products. Stabilization storage

Application:: The product can be used to chloroprene rubber, Epichlorohydrin rubber, chlorinated polyethylene, etc., are particularly suited to non-curing system of the chlorine-butylamine Hopewell accelerator. Can often 100-500 oC , with the right selection system can be the best rapid curing, and the whole parade security. Its products vulcanized high tensile strength, permanent deformation small for W (54-1 type polychloroprene), a non-curing system into effect significantly. It usually with zinc oxide and magnesium oxide together with the use, mainly for industrial products, and coating lines, shoes and other clothing chloroprene rubber products.

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

Storage: To keep the bags tightly closed in a cool, well-ventilated place at 25 max, to place the goods on the dry wooden shelf at a height of 500px min. And to avoid from moisture, sunshine, light and fires. The recommended max.shelf life is 2 years. 

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


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Q:About the catalyst?
Catalysts are not used/destroyed in any reactions, it merely speeds up the process by lowering the reaction activation energy. It functions by being able to weaken or break the required bonds necessary in the chemical reaction (thus lowering activation energy) through temporary and weak bonding to form a complex. In this case the H2O2 molecule will bind with the MnO2 molecule due to the complimentary sites (thus forming a complex) to weaken the bonds for decomposition, but after decomposition the products (oxygen and water molecules) break off from the catalyst (as there are no more complementary sites with them) thus the catalyst will not be destroyed.
Q:Carbon dioxide and hydrogen in the catalyst and heating conditions
CO2 + 4H2 = catalyst, heating = 2H2O + CH4
Q:When there is a catalyst in the chemical equation, it is not necessary to match the atoms of the catalyst
No, the catalyst is written above the equal sign, not the reactants, nor the product
Q:Chemistry why the catalyst can be equal to speed up the positive reaction rate
Since the catalyst only changes the activation energy and the amount of reactivity can be reduced, the amount of reaction energy is also reduced. Therefore, a positive catalyst is also a good catalyst for its reaction. Speed up the same multiple.
Q:Hydrogen and oxygen in the role of the catalyst can do the chemical formula of aviation fuel?
2H2 + O2 = catalyst = 2H2O
Q:CO and NO in what the role of the catalyst under the chemical reaction
2NO + 2CO = 2CO2 + N2
Q:Will the catalyst change in the chemical reaction?
The catalyst is actually involved in the chemical reaction, the catalyst is added to the reaction, becomes the other material, and then the reaction becomes back, and appears to have no change, actually involved in the change, but the end result the catalyst did not change
Q:What are the catalysts for making oxygen in chemistry? (At least 8 listed)
If the decomposition of hydrogen peroxide generated, as long as there are things that can be catalyzed by catalase
Q:Why are enzymes classified as organic catalysts?
Enzymes Are Classified As
Q:What are the chemical reaction conditions in organic chemistry are catalyst and heating, please elaborate
This really does not have omnipotent law, their own more than one point, you can classify to remember, when I was in high school is in accordance with the notes, such as poly, polycondensation and the like. In general, the double triple bond addition, plus halogen is not the conditions, plus HCl, HBr and the like to heat; dehydration reaction generally concentrated H2SO4 heating, dehydration condensation is also; there are some special, such as ethylene added to ethanol Special temperature requirements, it seems that 120 degrees, there are other; other addition poly, polycondensation some need catalyst. The The In short, the conditions are many, in general, you do not go to the high school to do more questions after the feeling, encounter problems do not panic general experience can come out according to experience, this also depends on the usual accumulation, if the equation conditions Wrong to deduct points, it is not worthwhile. There are some questions when the examination will give you some information, whether you know do not know should see clearly, although some of the reaction but the subject to the conditions are not the same, when you do according to the title to write conditions, this will not wrong. In addition, thank you for your help, I do not seem to know you

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