Carbon Black N234 Granluar

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Tianjin
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TT OR LC
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-
Supply Capability:
10000MT m.t./month

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Product Description:

Carbon Black N234 (Granule)

Product Description:

carbon black N234:
1.Usage Rubber Auxiliary Agents;
2.Product Status:Black powder or granular;
3.Standard: ISO 9001:2000

Suggest for Use:


(1) uses for high-speed tire tread bonding of high-quality rubber products.
(2) The usage and the role of the plastic material so that the FDA is better than the wear resistance of N220, N242 and N339, its wear resistance is about 10% higher than the N220, especially in the high-demanding degrees to use, the more show a good wear resistance. This product is plastic material processing performance better, the pressure out of a smooth surface suitable for all kinds of rubber. This product is the lack of plastic material containing heat high, hysteresis losses.

TDS of the Carbon Black N234

Product Varieties

N234

Pouring density(kg/m3)

280~360

Iodine absorption Value(g/kg)

115~125

300%modulus(Mpa)

-1.4~0.6

DBP absorption Value (10-5m2/kg)

120~130

Ash content

≤0.6%

24Mn DBP(10-5m2/kg)

97~107

45um sieve residue

≤0.05%

CTAB surface area(103m2/kg)

110~128

500um sieve residue

≤0.001%

STSA/(103m2/kg)

107~117

Impurity

NO

Nsa surface area(103m2/kg)

114~124

Fine content

≤10%

Tint strength(%)

115~131

Tensile strength(Mpa )

≥-1.5

Heatloss(%)

1.5

Elongation at failure

≥-20%

Safety:

As a matter of good industrial hygiene, gloves and safety glasses with side shields or better eye protection should be worn when handing Carbon Black ,For more information, refer to the MSDS.




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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 concept of catalyst in high school chemistry
Since the catalyst can only change the chemical reaction rate, the catalyst can not increase the mass of the product. The quality of the product depends only on the quality of the reactants.
Q:what is metallocene catalyst technology?
Metallocene catalyst A transition-metal atom sandwiched between ring structures having a well-defined single catalytic site and well-understood molecular structure used to produce uniform polyolefins with unique structures and physical properties. See also Catalysis; Coordination chemistry; Coordination complexes; Metallocenes; Organometallic compound. In the early 1980s, W. Kaminsky discovered that an appropriate co-catalyst activated metallocene compounds of group 4 metals, that is, titanium, zirconium, and hafnium, for alpha-olefin polymerization, attracting industrial interest. This observation led to the synthesis of a great number of metallocene compounds for the production of polymers already made industrially, such as polyethylene and polypropylene, and new materials. Polymers produced with metallocene catalysts represent a small fraction of the entire polyolefin market, but experts agree that such a fraction will increase rapidly in the future. See also Polymer; Polymerization; Polyolefin resins.
Q:The addition of the catalyst has no effect on the chemical equilibrium of the movement
Hello, the essence of chemical equilibrium is a dynamic equilibrium, under certain conditions, the equilibrium constant of the reaction is a certain value, the role of the catalyst is to reduce the activation energy required for the reaction, increase the number of activated molecules, so that the reaction within a unit time The number of molecules increased, but the positive reaction is positive for the reaction, so do not change the speed
Q:Can Cuo react as a catalyst with H2O2, does its quality and chemical properties change?
Can be, please, upstairs said wrong ... ... ... ... ... ... catalyst is not not to participate in the reaction, the second is because the essence of the catalyst is to participate in the reaction to accelerate the reaction rate of conversion, the catalyst after the reaction will be regenerated, and before and after conservation, quality and Chemical properties do not change. CuO is the catalyst for H2O2 reaction, and the catalytic effect of CuO is better than Mn02!
Q:how a catalyst can provide a new route in forming the product?
A catalyst will almost always provide an alternative route for the reaction in question. It is common to hear the statement that a catalyst does not take part in a reaction, but that is almost always untrue. Properly defined, a catalyst is a species that alters the rate of a chemical reaction and which can be recovered unchanged BY MASS at the conclusion. In other words, the amount of catalyst present at the end of the reaction is the same as the amount at the start, but the catalyst itself has likely reacted many many times as the reaction proceeded. A simple example is the decomposition of hydrogen peroxide. The reaction taking place can be summarised as: 2 H2O2(l) ---2 H2O(l) + O2(g) This reaction is very slow under normal circumstances. However, if you drop in a crystal of potassium iodide, the reaction becomes extremely fast. The reason is that the potassium iodide dissolves and dissociates releasing iodide ions. These provide a new two-step reaction pathway in which both steps are rapid: H2O2 + I- ---H2O + IO- H2O2 + IO- ---H2O + O2 + I- Notice that if you add these equations together you get the same overall reaction as before. The iodide ion does not take part in the overall reaction, and so must be present at the end. However, it does take part in the mechanism of the reaction, and is undergoing a lot of reactions.
Q:What is the difference between biological and chemical catalysts?
Biological catalyst: 1. Biological catalysts or enzymes are high molecular weight globular proteins. 2.Their composition may change at the end of reaction. 3.Their catalyzing effect is very high. i.e faster than chemical catalyst. 4.They are reaction specific. i.e One enzyme or biological catalyst may catalyze only particular type of reaction and not many. 5.They are intolerant to temperature and pH changes. An enzyme can not function outside its temperature or pH range. e.g amylase,lipase,pepsin Chemical catalyst: 1.Chemical catalysts are simple inorganic molecules with low molecular weight. 2.They remain unchanged at the end of reaction. 3.They are slower compared to enzymes. 4.They are not reaction specific. 5.They function within wide range of temperatures,pH or pressure. e.g vanadium dioxide, platinum
Q:why are enzymes called catalysts?
A catalyst is any substance that speeds up a chemical reaction without otherwise changing the outcome of the reaction. Catalysts do this by lowering a reaction's activation energy (which is the energy barrier that must be overcome before the reaction can proceed spontaneously). Catalysts are not permanently changed by the reactions they catalyze, so one catalyst could reasonably catalyze the same reaction many times over. Enzymes are biological catalysts because they lower the activation energy of metabolic reactions (and therefore increase their rate). Every enzyme has an active site that is specific for a particular substrate, or for a small related group of substrates. When the correct substrate binds to the active site, the enzyme catalyzes a particular reaction and releases new products. Substrates that don't match the shape of the enzyme's active site usually won't be affected by the enzyme. Enzymes are proteins, which are in turn polymers of amino acids. The sequence of amino acids in an enzyme, as well as the three-dimensional structure of the polypeptide chain, are essential for determining the enzyme's functionality. I hope that helps. Good luck!
Q:A biological catalyst or a chemical reaction facilitator is know as a/an?
A biological catalyst is an enzyme. Here are more details for you. Enzymes – biological catalysts Normally chemical reactions do not proceed spontaneously, but require the help of a catalyst. A catalyst accelerates a chemical reaction without itself being changed. For example, the reaction of hydrogen with oxygen to produce water requires the addition of the metal platinum. These days we encounter the concept of a catalyst most often in connection with technology for cleaning up the exhaust fumes from our automobiles, where platinum and rhodium catalyze the breakdown of polluting nitrogen oxides. Chemical reactions within living cells must also be catalyzed. Biological catalysts are called enzymes. There is, for instance, an enzyme in our saliva which converts starch to a simple sugar, which is used by the cell to produce energy, and another enzyme which degrades the excess lactic acid produced when we overexert ourselves. All green plants contain enzymes which convert carbon dioxide in the air to nutritious carbohydrates such as sugar and starch. Without enzymes life would not be possible! Enzymes are highly selective. Among the thousands of different compounds in a cell, an enzyme can recognize the right molecule (substrate) and transform it into a new product. This property arises from the special three-dimensional structure of each enzyme. One can compare an enzyme and its substrate with a lock and its key. Enzymes are very effective catalysts. A chemical reaction might require several months to reach completion without a catalyst, but only a few seconds with the help of an enzyme. Since the enzyme remains unchanged, one enzyme molecule can catalyze the transformation of millions of substrate molecules. Up until the beginning of the 1980's, all enzymes were thought to be proteins. We now know that proteins do not have a monopoly on biocatalysis. RNA molecules can also function as enzymes.
Q:NH3 and O2 in the presence of catalyst in the chemical reaction occurred how to write,
4NH3 + 5O2 == 4NO + 6H2O

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