Diethylene Glycol Dibenzoate, DEDB, DOP Substitute
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 16.8
- Supply Capability:
- 8000 m.t./month
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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
Packaging: IBM, net weight: 1000 kg.
Our Factory:
- Q:Why the catalyst after the chemical reaction of its quality and chemical properties unchanged
- In fact, the catalyst in the reaction process has become other substances, but after the end of the reaction, the catalyst has changed back. That is, the catalyst is actually involved in the reaction, except that the amount of catalyst being reacted is as much as it did.
- 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:Is there a catalyst for a chemical reaction?
- There may be many, but some of the catalytic effect of the catalyst is good, and perhaps some of the catalyst has not been found
- Q:Is there a catalyst in the chemical shop?
- If it is like vanadium pentoxide, which catalyzes sulfur dioxide, do not sell it because vanadium is highly toxic and most of the catalyst is expensive
- Q:Describe the role of a catalyst and a substrate in a chemical reaction.
- Describe Catalysts
- Q:in acid-catalyzed reaction,there are some books show the acid catalyst as H+ and there are some show it as H3O+ .Are they the same?
- Sort of. If the reaction is under aqueous conditions (any water is included in the reaction), then yes, H+ = H3O+. This is because free protons present (H+) will be coordinated generally to molecules of water [thus H2O + H+ =H3O+ ]. But there are reaction conditions where water is not present, but an acid catalyst is still possible. In these cases, the acid catalyst may frequently be indicated as simply H+. Either way, the function in most of your reaction mechanisms is basically the same, whether indicated as H+ or H3O+ -- and that's to protonate molecules (Lewis or Bronsted bases) with H+. Concentrated sulfuric acid would be an example of a mostly-anhydrous (no water) strong proton/acid source (H+). Hydrochloric acid (HCl) frequently is available as an aqueous solution, even concentrated HCl is an aqueous solution of HCl. HCl itself is a gas under ambient conditions... but it has solubility in water and thus is conveniently sold frequently as an aqueous solution (which could be represented as H3O+)
- 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.
- 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:Nitrogen and hydrogen in the role of high temperature and pressure catalyst to generate ammonia chemical equation
- N2 + 3H2 = catalyst, high temperature and high pressure = 2NH3
- Q:Why extract the genome, the digestion is always not cut
- Enzymes are proteins that are highly specific and catalyzed in living cells, also known as biocatalysts, which are produced by the organism itself. In the metabolic process, almost all chemical reactions are in the enzyme Catalyzed, and the conditions are mild, the reaction efficiency is extremely high, so that the various substances in the body in constant metabolism, in this sense, there is no enzyme without life. Intracellular synthesis of enzymes mainly in the cell from the catalytic The role of some enzymes after the release into the blood or digestive tract, and where to play its catalytic role, artificial extraction of enzymes in the appropriate conditions can also be in the test tube of its special substrate catalytic role.
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Diethylene Glycol Dibenzoate, DEDB, DOP Substitute
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 16.8
- Supply Capability:
- 8000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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