Diethylene Glycol Dibenzoate DEDB Best Quality

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
16.8
Supply Capability:
8000 m.t./month

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Product Description:

Product performance:

     Polyol Benzoate (DEDB) is colorless or pale yellow transparent oily liquid, water-insoluble, soluble in aromatic hydrocarbons, ketones and ethers, and has good compatibility withpolyvinyl chloride, ethylene - vinyl acetate copolymer, poly vinyl acetate, polymethylmethacrylate, polyvinylbutyral, nitrocellulose, and ethyl cellulose, etc.

Product application:

       Polyol Benzoate(DEDB) is an environmentally friendly plasticizer with the characteristics of strong solubility, good compatibility, low volatility,resistant to oil, water, light, pollution etc. It is suitable for processing PVC flooring material, plastisol, artificial leather, cable material, soft and hard pipe, shoes material, rubber strips, synthetic rubber, and paint, printing ink, etc. It has a better plasticized effect if it is used together withDOP or DBP, and has greatly achieved the purpose of reducing cost .

Product quality index

Item

First grade

Second grade

Chroma(APHA)                    

50

60

Ester %                           

99.5

90.0

Density(20°C)g/ 

1.120-1.126

1.172-1.78

Acidity(as benzene dicarbonic acid) %   

0.01

0.02

Flash Point °C                     

195

192

Loss on heat(125°C,2 hours)%         ≤

0.3

0.5

Chroma after heat treatment

80

100

Specifications

1. Direct producer with 15 years experience 
2. ISO9001:2000 
3. High quality, lower price and best service 
4. New plasticizer 

PackagingIBM, net weight: 1000 kg.

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Q:What is the effect of the catalyst in chemistry?
In fact, the catalyst in the chemical reaction is not the reaction of the role, but to play a role in accelerating the speed of chemical reaction, it is like a reaction to an hour, but joined a certain catalyst, the reaction speed A lot, as long as half an hour to react to play, the catalyst as long as properly handled, but also can be recycled, the students do not have any chemical changes
Q:What is the similarity between enzymes and general chemical catalysts?
(1) The enzyme is the same in many respects as a biocatalyst and a general catalyst, such as a small amount and a high catalytic efficiency. As with the general catalyst, the enzyme can only change the rate of chemical reaction and does not change the equilibrium of the chemical reaction It is possible to catalyze the activation of a large number of substrates in a short time and to reflect the high efficiency of enzyme catalysis.The enzyme can reduce the activation energy of the reaction (activation) (△ G) during the reaction, but the reaction rate is accelerated and the reaction time is reduced, but the equilibrium constant is not changed. (2) However, the enzyme is a biological macromolecule (1) Enzyme-catalyzed high efficiency: The catalytic effect of the catalyst can increase the reaction rate by 10 ^ 6 ~ 10 ^ 12 times, which is at least several times higher than that of the conventional catalyst. (2) The enzyme catalyst Highly specificity: including specificity of response, substrate specificity, chirality specificity, geometric specificity, etc., that an enzyme can only act on a certain class or a specific substance. Bond, ester bond, peptide bond and so on can be catalyzed by acid-base hydrolysis, but the hydrolysis of these chemical bonds are different, respectively, the corresponding glycosidase, esterase and peptidase, that is, they were specific (3) enzymatic reaction conditions are mild: enzymatic reaction is generally carried out in aqueous solution of pH = 5 ~ 8, the reaction temperature range is 20 ~ 40 ℃
Q:Word editor when playing chemical equation = with the above conditions or how to adjust the size of the catalyst, how to make it centered
Open the word - insert - object - WPS3.0 formula - and then select the "label arrow template", you can add a catalyst.
Q:Effect of Catalyst on Chemical Reaction Rate
The catalyst can only change the rate of chemical change (faster or slower), does not change its own quality and chemical properties, nor does it change the amount of reaction product.
Q:Can chemical reaction limits be changed by catalyst or other methods?
Do not know what you say is the limit of the concept of reaction. The general catalyst can change the rate of the reaction, most of which is used to speed up the reaction rate, that is, it will be difficult to react or normally does not respond to the material to provide a reaction of the bridge, so that the material through the catalyst to establish a connection to achieve the reaction the goal of.
Q:How do enzymes / catalysts in biology and chemistry in high school stage give different feelings?
But let's not say that there is no enzyme or catalyst, the reaction can not be carried out. In the process of random collision of a molecule, the occasional jump of 3 meters is also possible, but the probability is low. From the macro point of view, is the reaction rate is low. So what rate, catalyst, or what xxx let high school teacher how to say, chemical catalysis and enzyme catalysis of the fundamental principles are the same, so you go to college to understand.
Q:Please name 2 common examples of catalysts.Thank you?
Common Catalysts
Q:Whats an ATI Catalyst? read details please?
Catalyst is what ATI calls the drivers for their video cards or video devices built into mainboards. Download the newest video driver for your video card from ATI or from your computer manufacturer's site if the video device came with the computer. Install that, and you should be all set. You may want to check your add and remove programs and remove any of the old, malfunctioning ATI or Catalyst drivers before attempting to install the new one. Good luck!
Q:Explanation of Catalysts?
A catalyst is a compound in chemistry (it can be an acid or temperature or a base or a metal or anything, pressure anything) that shifts the reaction towards one product or the other... In simple words. If you want to obtain something, e.g. water, then you can obtain it in different timings, ie in 2000 years, but if you want to obtain it in 2 hours instead of 2000 years then you add a catalyst, e.g. you heat the reaction to speed it up, you add an acid, or a base etc. Some catalysts also act on the regioselectivity of a compound thru preferring the formation of a stereo-isomer to another. E.g. if you want to obtain S-Thalidomide instead of R-Thalidomide you use a particular catalyst etc...
Q:Chemical catalyst in several ways
Some are composed of oxidative - reduced electricity, such as manganese dioxide catalyzed by hydrogen peroxide decomposition

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