C24H38O4 DOP Dioctyl Phthalate DOP oil 99% 99.5%

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
8000 m.t./month

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Product Description:


               DOP 

Molecular Formular : C24H38O4
Molecular weight : 390.57
CAS No.:117-81-7
H.S Code : 2917.3200.00
EINECS No.: 204-211-0
Characteristics : Colorless transparent oily liquid, slight odor.

Processing : Injection Moulding

Application : It is one of the most extensively used plasticizers in plastics processing. It has comprehensive properties, such as high plasticizing efficiency, low volatility, UV-resisting property, water-extracting proof, cold-resisting property, and also good softness and electric property. As a fine main plasticizer, it is extensively used in processing polyvinyl choride and ethylcellulose resins to produce plastic film, imitation leather, electric wire, cable wearer, sheet, planet, mould plastic products and. Used in nitrocellulose paints, it can make the ethylcellu lose more elastic and more strong in extracting tension. It can be used as a softening agent of synthetic rubber, such as to make the product easier to rebound and harder to undergo form change under pressure, without affecting of the plastics. 

Specifications : 

Quality Index

Item

Value


Super Grade

First Grade

Qualified Grade

Appearance

Oily liquid

Color(APHA) ≤

30

40

120

PurityAs Ester% ≥

99.5

99.0

99.0

Acidity (benzene dicarbonic acid)g/cm

0.01

0.015

0.03

Loss on dry (125oC3hr)%≤

0.2

0.3

0.5

Flash point(open)oC ≥

195

192

190

Density20,g/cm3

0.982-0.988

Volume Resistivity ΩM ≥

1.5×1011

Heat decrement % ≤

0.2

0.3

0.5

Water content,%              ≤

0.1

0.15

0.15

Package and Storage : 
Packed in 200KG/Galvanized Iron Drum or 1000kg/ISO TANK or flexibag container
Stored at dry,shady,ventilated place. Prevented from collision and sunrays,rain-attack during handling and shipping. Met the high hot and clear fire or contact the oxidizing agent,caused the burning danger.


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Q:role of catalyst?
Catalysts are used to increase the rate of chemical reactions.
Q:What is the effect of the catalyst in chemistry?
Changing the rate of reaction can speed up the reaction and slow down the rate of reaction
Q:why are catalysts never used up during reactons?
MAD = Mutual certain Destruction you could injury us, of direction. yet you could no longer injury us till now we, even from the grave injury you too. we can be lifeless, we understand that. yet you will no longer stay to confirm and revel in it. what would be left of the two one human beings will ought to combat the subsequent war with sticks and stones. 3 skill of dropping the bomb: by skill of airplane, by skill of submarine launch and by skill of ICBM Inter Continental Ballistic Missile. As the two events found out war exchange into certain destruction, neither fairly needed that. We have been given fairly near to nuclear war, exceedingly throughout the Cuba disaster. yet provided that a nuclear war might propose the certain finished destruction of and the U.S. and the u . s . and West + East Europe, it must be prevented. in assessment to on the instant. have been non secular fans already have the bomb (Pakistan) or very near to construct one (Iran) and don't care a rattling concerning the outcomes. Allah will supply! (them with seventy two virgins each and each)
Q:What are the roles of enzymes (protein catalysts) in catalyzing biochemical reactions in the cell.?
Catalysts help shift the equilibrium of a reaction to one that is more favorable. They allow a naturally occurring reaction that may be extremely slow to progress faster or an unfavorable reaction to proceed forward. During the process catalysts are recycled, which means that at the catalyst is the same compound in the beginning and the end of the reaction, although during intermediate steps catalysts can change conformation. Catalysts shift the equilibrium of a reaction by lowering the activation energy of a reaction, which is the energy barrier which must be overcome in order for the reaction to proceed in a desired direction. This can be achieved in several ways such as providing favorable thermodynamic conditions for a reaction or creating intermediates which react more favorably to create the products. Inside the cell a lot of chemical reactions are either too slow to proceed naturally or are simply unfavorable. Catalysts help overcome those barriers. The substrate is the part of the reaction which gets transformed into the products after binding to the active site of the protein.
Q:What is the difference between biological enzymes and chemical catalysts?
The biological enzyme is a class of molecules with moderate molecular weight in the living cells. It is a natural macromolecule catalyst in nature because the enzyme and the reactants are more specific than the reaction of the catalyst with the chemical synthesis of the catalyst (1) High efficiency (2) selectivity good by-product less (3) mild reaction conditions and so on
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:Why are enzymes classified as organic catalysts?
since enzymes are found in the body,earlier they were belived to be related to life processes. however the organic molecules can also be produced outside the body through inorganic processes. a catalyst helps in speeding up the reaction.here the enzymes play as catylyst in the body for various metabolic pathways.
Q:Does a catalyst have an effect on the Gibbs free energy of a reaction?
A catalyst can change the activation energy not the Gibbs energy. The Gibbs energy is the energy difference between the initial state and final state. A catalyst cannot change that. Imagine you are driving from school to home. How you drive do not change the height difference between the school and your home. However, a catalyst can change your path which can change the routine you drive from school to home. So if there is a hill in between your school and you home, you have the choice to drive through it or drive around. Here is a picture: upload.wikimedia.org/wikipedia/co... A catalyst can change the height of the barrier, but cannot alter the initial or final state.
Q:Copper oxide and ferric oxide can replace manganese dioxide as a catalyst in chemical reaction?
No
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.

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