C24H38O4 Content99.5% Dioctyl phthalate DOP

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Loading Port:
Tianjin
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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: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:What is the nature of the chemical catalyst?
Catalyst is the chemical reaction can change the reaction rate of other substances, and its own quality and chemical properties in the chemical reaction before and after the material has not changed Some catalyst can really slow down the reaction rate, the book said only refers to the usual circumstances , In general, junior high school and high school teaching into the do not do special instructions are understood to speed up the reaction rate. It is only necessary to know that the catalyst is not only used to speed up the reaction rate. Once the reversible reaction reaches equilibrium, adding the catalyst does not break the balance, but at the same time accelerates the forward and reverse reaction rates. The degree of acceleration is the same.
Q:Gene cloning of heat - resistant bacteria
The enzyme, like the general catalyst, only catalyzes the thermodynamics of the permissible chemical reaction, shortening the time to reach the chemical equilibrium without changing the equilibrium point. The enzyme as a catalyst has no qualitative and quantitative changes before and after the chemical reaction. The mechanism of action of enzymes and general catalysts is to reduce the activation energy of the reaction.
Q:What chemical reactions can water do the catalyst?
So far heard, but can and Na and other metal reaction
Q:The properties of scandium
Sci-Scandium (Sc) Basic knowledge Introduction In 1879, Swedish chemistry professor Nelson (LFNilson, 1840 ~ 1899) and Clive (PTCleve, 1840 ~ 1905) were almost simultaneously in rare mineral silica beryllium yttrium and black The mine found a new element. They named this element "Scandium" (scandium), ...
Q:Can you describe at least 4 ways a catalyst can lower the activation energy of a reaction?
To see how a catalyst accelerates the reaction, we need to look at the potential energy diagram shown below which compares the non-catalytic and the catalytic reaction. For the non-catalytic reaction, the figure is simply the familiar way to visualize the Arrhenius equation: the reaction proceeds when A and B collide with succificient energy to overcome the activation barrier. The change in Gibbs free energy between reactants, A + B, and the product P is delta G. The catalytic reaction starts by bonding of the reactants A and B to the catalyst, in a spontaneous reaction. Hence, the formation of this complex is exothermic and the free energy is lowered. There then follows the reaction between A and B while they are bound to the catalyst. This step is associated with an activation energy; however, it is significantly lower than that for the uncatalyzed reaction. Finally, the product P seperates from the catalyst in an endothermic step. The energy diagram illustrates 4 ways the catalyst works : The catalyst offers an alternative path for the reaction that is energetically more favorable The activation energy of the catalytic reaction is significantly smaller than that of the uncatalyzed reaction; hence the rate of the catalytic reaction is much larger The overall change in free energy for the catalytic reaction equals that of the uncatalyzed reaction. Hence, the catalyst does not affect the equilibrium constant for the overall reaction. A catalyst cannot change the thermodynamics of a reaction but it can change the kinetics. The catalyst accelerates both the forward and the reverse reaction to the same extent. In other words, if a catalyst accelerates the formation of product P from A and B, it will do the same for the decomposition of P into A and B.
Q:The size of △ H in the thermochemical reaction equation is related to the use and unused catalyst
It does not matter
Q:the heterogenous catalyst ZSM-5 IS used to convert ?
Zeolite-based heterogeneous catalysts are used by industrial chemical companies in the interconversion of hydrocarbons and the alkylation of aromatic compounds. A very good example is the zeolite ZSM-5. This zeolite, developed by Mobil Oil, is an aluminosilicate zeolite with a high silica and low alumininum content. Its structure is based on channels with insecting tunnels. The aluminium sites are very acidic. The substitution of Al3+in place of the tetrahedral Si4+ silca requires the presence of an added postive charge. When this is H+, the acidity of the zeolite is very high. The reaction and catalysis chemistry of the ZSM-5 is due to this acidity. The ZSM-5 zeolite catalyst is used in the petroleum industry for hydrocarbon interconversion. An example use is in the isomerizations of xylene- from meta to para-xylene. The acidic zeolite promotes carbocation isomerizations. There are two suggested mechanisms for this type of isomerizations. Firstly shape may play a role. Perhaps para-xylene has a shape which allows it to diffuse rapidly through the zeolite structure, whereas as meta-xylene takes longer to pass through the zeolite and thus has more opportunity to be converted into the para-xylene. Secondly, is that the orientation of reactive intermediates within the zeolite channels favors specifically para-xylene.
Q:Chemistry is often said that the catalyst can change the material reaction rate
The rate is related to the concentration of matter, the velocity is physically, is the vector, has the direction
Q:What about the chemical reaction of the catalyst if there is no catalyst?
The phenomenon of accelerating or slowing the rate of chemical reactions due to the intervention of the catalyst is called catalysis. In the catalytic reaction, the catalyst reacts with the reactants to change the reaction pathway, thereby reducing the activation energy of the reaction, which is the reason why the catalyst can improve the reaction rate.

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