Rubber Chemcials Rubber Antioxidant RD (TMQ)

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Tianjin
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25 m.t.
Supply Capability:
12000 m.t./month

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Product Description:

RD (TMQ)

Chemical Name:2,2,24-Trimethy 1-1,2- Dihydroquinoline content

Molecular Weight: (173.26)n

CAS No.:26780-96-1

Executive standard: GB/T 8826-2003

Specification:

 

Item

Index

High Content

High Class Product 

First Class Product

Appearance

Amber to light brown flake or granular 

Softening Point 

  90.0+10.0

80~100

Heat Loss % 

 0.30

0.30

0.50

Ash% 

 0.20

0.30

0.50

Assay % 

77.0

--

--

Isopropyl-bis aniline % 

0.20

--

--

Issolubles in alcohol % 

0.50

--

--

 

Properties: Pale yellow to amber power or thin.Nontoxic Not soluble in water, soluble in benzene.Chloroform,acetone and carbon disulfide,Miro-soluble petroleum hydrocarbons.

 

Application:The product is particular excellent kinds od eneral-purpose ammonia anti-ageing agent.Ti particular suit to full-stell,semi-steel radial tire and it apply to many kinds of the tires,rubber tube,gummed tape, rubber overshoes and general industrial rubber producers and also suits to emulsion products.

 

Packing:25kg paper bag inner with PE bag.

 

Storage:The product should be stored in the fry and colling place with good ventilation. The product should be avoid hot sunshine.

 


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Q:What progress has chemistry brought to our life?
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: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:What is the catalyst condition in the chemical equation?
Do you want to play on your computer? Trouble ah ~ no you add brackets it ~ word may be able to try ~ I have not studied ~ now look ~
Q:Why the amount of catalyst is too small will make the chemical reaction rate slowed down
Whether the chemical reaction can be carried out according to the change of free energy, but only according to the change of free energy can not determine whether the reaction can be completed, because the chemical reaction is also completed by the reaction of the energy barrier, that is, if the reaction energy barrier is high, To provide some energy, across the barrier, to complete the reaction. The energy barrier is called activation energy. And the role of the catalyst is to reduce the activation energy, so that in a relatively harsh environment, chemical reaction occurs.
Q:What is the difference between a catalyst and an inducer in a chemical reaction?
The catalyst does not participate in the reaction, but only the carrier of the reaction; the inducer will participate in the reaction
Q:Can a catalyst be present in the rate equation?
Yes, a catalyst can be included in a rate law. That's because, most reactions occur in a series of step and the rate is based on the rate determining step, which is the slowest step. A catalyst may be a reactant in the rate determining step, and a product in a subsequent step. Therefore, the catalyst is not included in the overall reaction. But a catalyst need not always be in the rate law. The rate law is usually based on the rate determining step. ========== Follow up =========== In the free response questions on the AP chemistry exam there has been at least one case where a rate law included a catalyst( 2002D). Brown and LeMay always include at least one in their examples, and I always cover this situation when I teach rate laws and mechanisms in AP chemistry. Here is one comment: Other examples of species not in the balanced reaction occurring in the rate law would include catalysis, where a catalyst does not normally appear in the balanced reaction but does appear in the rate law. www.chem.arizona.edu/~salzmanr/48... Consider this generalized reaction which is catalyzed by M A + B --C A + M --Q ... slow Q + B --C ... fast M is the catalyst, and Q is the intermediate. The slow, or rate determining step, depends only on the concentrations of A and M, the catalyst. So even though the overall reaction does not include, M, the rate law does. Rate = k[A][M]
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
If the reaction before the catalyst, you can speed up the reaction rate, that is to achieve the balance required to reduce the time, but to balance the system when the same concentration
Q:What is the difference between electrocatalysis and general chemical catalysis?
General chemical catalysis is a catalyst, and electrocatalysis also need to be carried out under the conditions of the electric field
Q:what is the difference between enzyme and catalyst?
Enzymes and catalysts both affect the rate of a reaction. The difference between catalysts and enzymes is that while catalysts are inorganic compounds, enzymes are largely organic in nature and are bio-catalysts. Even though all known enzymes are catalysts, all catalysts are not enzymes. Moreover, catalysts and enzymes are not consumed in the reactions they catalyze. Catalysts are low molecular weight componds, enzymes are high molecular globular proteins. Catalysts are inorganic, enzymes are organic. Catalyst reaction rates are slower (usually) than enzyme reaction rates. Catalysts are not generally specific - enzymes are VERY specific. Catalysts increase or decrease the rate of a chemical reaction, enzymes are proteins that incrase the rate of chemical reactions & convert the substrate into product. There are 2 types of catalysts - (positive & negative), and the 2 types of enzymes are activation enzymes and inhibitory enzymes. Catalysts are simple inorganic molecules, while enzymes are complex proteins.

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