DOP Supplier in China Quality under SGS test
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- Loading Port:
- Tianjin
- Payment Terms:
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- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 8000 m.t./month
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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.
- Q: What is the principle of the catalyst? Why can change the rate of chemical reactions and their own without any change
- If you are not asking for a written, you can look at my words. The principle of the catalyst is to make the water muddy. It has to accelerate the chemical reaction, but also slow down the reaction. Catalyst ions into the solution, is to let the solution become muddy, and then should be the reaction of the ion collision probability is large, to speed up the reaction. The substance of the catalyst does not participate in the reaction, so it does not change. Are personal understanding, wrong please more inclusive. Thank you
- Q: In the chemical calculation, the quality of the catalyst should not be counted before and after the reaction
- Half is not easy to save trouble
- Q: What is positive and negative catalyst in chemistry?
- Positive catalyst can simultaneously speed up the positive and negative reaction rate
- Q: The "one-to-two change" of the catalyst is that the quality and chemical properties of the reactants are constant or the quality and chemical properties of the catalyst are constant?
- The quality and chemical properties of the catalyst are unchanged
- 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: How are the 4 characteristics of a catalyst (1. organic or inorganic 2. reusable 3. Highly specific, and 4. lowers activation energy) important in preforming life functions? please be as specific as possible, i understand that these are characteristic, i just don't understand why they're beneficial, other than the reusable and lowers activation energy one.
- Organic or Inorganic - the catalyst (enzyme) must be organic to be found in the cell. Catalysts speed up chemical reactions inside a cell and must therefore be organic to be a functioning part of the cell. Reusable - There are so many reactions that catalysts are involved in that it would be a waste for the cell if a catalyst could only last one reaction, especially if there are inhibitors and competition for the active site. Catalysts must be reusable in order to keep the cell functioning. Catalysts always remain unchanged after a reaction. HIihly Specific - Catalysts are only made to catalyze one specific chemical reaction. Their active site has proteins bonded in such a way that only certain elements can enter the active site and H bond with those proteins. The fact that they are highly specific maximizes the productiveness of the cell. And it ensures that the cell only has catalysts to reactions that it needs to be completed. It also ensures that the elements are correctly bonded with eachother. If any two elements could enter the active site, there is no guarantee that the correct product will be produced. Catalysts and Enzymes must be super highly specific in order to properly function. Lowers Activation Energy - The more energy a cell has to spend to catalye a reaction, the worse it is for the cell and the less ATP is has for other reactions. Catalyts hold the substrates together so there is less energy that is needed to have the two substrates react with eachother. Activation Energy is the energy that is needed to start a reaction. So the less energy used by the cell for reactions, the better for the cell. Hope this helps
- Q: explain how a catalyst can affect the rate of reaction but not be in the overall equation.?
- Simply, the catalyst provides a better way for the reaction to occur (some won't work without the catalyst) and usually a favorable reaction will run faster if there is a catalyst. There are many ways for this to happen. The catalyst can provide more surface area for a reaction to occur, it can do an adsorption process where one of the reactants sticks to the surface and exposes a portion of the molecule which is more favorable to the reaction. It can lower the energy required for the reaction to occur (same effect as increasing temperature) by favoring an intermediate step in the reaction. Lots of different ways, some not fuly identified or understood. The catalyst people who work with the platinum metals groups are notorious for keeping their mixtures secret. A better gasoline catalyst for refineries is worth billions in profits. It is not considered in the equation because you get back what you start with even if one of the intermediate steps involves changing the chemical composition of the catalyst and then has it returning to its original state with the formation of the product.
- Q: Does anybody have any tips or references I can go to for this? I'm writing a novel and the main character wants to be a catalyst; the story isn't about him and his journey, so much as the effects on everyone around him that come about simply because of him being there and being who he is. How would I go about doing this, and doing it well?
- Ways to be a catalyst: By his behaviour: - He is a good listener. People use him as a sounding board and make important decisions as a result. - He is indiscreet and inadvertently reveals people's secrets and back-sniping comments. - He is a ****-stirring gossip. - He is a home-wrecking Lothario. - He is wise and gives good advice. - He is a hooligan who ruins businesses with vandalism, costs people their jobs and ruins relationships by beating people up. - He is a manipulative, blackmailing bastard who tries to turn every woman into a prostitute and con every man out of his money. - He is a charlatan who preaches nonsense about religion, health and business investments. By effortlessly influencing other people's behaviour: - He is famous and people try to impress him wherever he goes. - He has cancer or a disabling war wound. People admire and pity him and are shocked by his PTs mood wings. - He is gay, Muslim or a suspected paedophile and people want to persecute or cure him. - He is destitute. People argue amongst themselves over whether it's because he's lazy, has bad karma or there but for the grace of God go I. - He really looks like Jesus, Buddha or Santa and the sight of him makes people contemplate their Humanist values, coming to various conclusions. Perhaps you can write about his reputation; how he earned it, how it precedes him and provokes prejudices that he sometimes confirms or disproves. Use a detached, omniscient God-narrator. (Pretend Morgan Freeman's reading the audiobook.) Alternatively perhaps he is not a catalyst but a neurotic voyeur, fascinated by the minutiae of other people's lives so that the mundane appears tumultuous. He is not influencing people but your account of the changes in people's lives are centred on his observation of them.
- Q: hey people i need your help about my science lab report...the question on my paper says "what function the catalyst?....please help me on this one...i would really appreciate if you leave me answers....much mahalos to all you folkss...thanks
- A catalyst is a substance used to change the rate of a reaction. If it increases, it is posititve catalyst . Decreases means negative catalyst. If the reactants and catalyst are in same phase, it is homogenous catalysis, otherwise heterogenous. Any reaction to occur, the reactants have to combine to form an intermediate compound and then to product. This requires surpassment of a minimum amout of energy known as Ea- Activation energy. Catalyst decreased the Ea, so that , passing the barrier becomes easy and hence the speeding of the reaction.
- Q: Chemical reactions in the presence of impurities will cause catalyst poisoning, how to understand this sentence
- In fact, the magazine and the catalyst reaction, making the catalyst deterioration or activity decreased
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DOP Supplier in China Quality under SGS test
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 20 m.t.
- 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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