Esterification reaction experimental instrument diagram
Most of the esterfication reaction devices would be equipped with an oil-water splitter that could automatically separate water. The principle was to evaporate the water by using the boiling of the solution and water, and then cool it down in the cooler before entering the water splitter. The water separation tank of the automatic water splitter was separated into a buffer zone and a separation zone by a baffling plate. The oil-water mixture was first buffer in the buffer zone, and then smoothly diffused into the separation zone for separation of the solution and water. The constant oil-water interface was determined by the density difference between the solution and the water, so that the functions of draining more water and draining more solution were realized, and the purpose of automatic return and drainage of the solution was achieved. Among them, the automatic drainage design principle of the water splitter was based on the principle of liquid statics. The drainage pipe was inserted into the bottom of the water splitter, and the water outlet pipe and the water splitter tank could be regarded as connected devices. The upper layer of the water splitter is the solution and the lower layer is water (the layering interface can be seen through the sight glass). Below the oil-water interface, both the inside and outside of the water outlet pipe are water, with the same density and static pressure. Above the interface, the water in the water outlet pipe and the solution outside the pipe are different in density. According to the principle of statics, there will be different liquid column heights. According to the density of the esterfication reaction and water, the liquid level height of the water outlet pipe and the water outlet pipe was designed to have a constant difference, so as to realize the function of producing more oil and water (generally, the density of the solution was lower than that of water, and the pipe mouth of the water outlet was designed to be lower than the pipe mouth of the solution). However, this was only the principle of some of the key instruments (automatic water splitter) in the experimental instrument for the fermentation reaction. The complete experimental instrument for the fermentation reaction may also involve heating devices, reaction vessels, pipes, etc. Different experimental purposes and conditions may have different experimental device combinations and designs. Read more exciting novels for free
Esterification Reaction of Alcohol with Concentrate Nitric Acid
When the fermentation reaction between alcohol and concentrated sulfuric acid takes place, the reaction equation is: CH CH2-Ox + HO-NO <2>(concentrated H <2> SO2 <2>, heating) → CH CH2-O-NO <2>+ H <2> O. During the reaction, the alcohol degenerates the alcohol and the sulfuric acid dehydrogenates to form the ester of nitrates. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Is it a neutralizing reaction between potassium Permanganate and hydrogen peroxide-based experimental principle diagram?
The reaction between the two was not a neutralizing reaction, but an oxido-reduction reaction. In this reaction, the Mn element in the KManganite (KM04) was reduced as the oxidiser, and the O element in the hydrogen peroxid (H2O2) was oxided as the reducing agent. The reaction equation is 2KMNO4 + 3H2O2 → 2KhOx +2MNO2 + 3O2 + 2H2O (In this reaction, two molecules of potassium Permanganate and three molecules of hydrogen peroxidereact to form two molecules of potassium dioxide, two molecules of manganous dioxide, three molecules of oxygen, and two molecules of water). Since the neutralizing reaction was a reaction in which acid and base exchanged their components to form salt and water, and the two did not meet the definition of neutralizing reaction, they were not neutralizing reactions. The experimental principle diagram of this reaction was not included in the information provided, so it was impossible to answer accurately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Diagram of the Inhibition Reaction
The principle of the inhibition reaction can be divided into competitive inhibition and non-competitive inhibition: 1. ** competitive inhibition **: A competitive inhibition agent will compete with the base for the active site of the protein, thereby suppressing the activity of the protein. In this case, both the initiator and the reagent could bind to the active site of the reagent. Due to the existence of the initiator, the chances of binding the reagent to the reagent were reduced, resulting in a decrease in the rate of the reaction. 2. ** Non-competitive Inhibition **: A non-competitive inhibition agent will bind to a site other than the active site of the protein, thereby suppressing the activity of the protein. This binding method changed the structure of the protein, which reduced the affinity of the active center of the protein to the protein. Even if the concentration of the protein increased, the reaction rate of the protein would not increase. For example, in the pesticide residue detection method, the target pesticide's inhibition of a specific reagent was an inhibition reaction. The specific reagent could catalyze the conversion of the reagent into a reagent when there was no pesticide. If the test sample contained the target pesticide, the pesticide would interact with the reagent to inhibit the activity of the reagent, thereby indirectly determining the level of pesticide residue in the sample. Also, in terms of whiteness, 4 -Butylated Resorcinol (577) mainly achieved whiteness and freckles by suppressing the activity of "Tyrosinase" and "Trp - 1." The inhibition of "Tyrosinase" may involve the principle of competitive or non-competitive inhibition. When constructing a nanoase sensor array to detect substances, for example, using 2D-MOF nanoase to detect phosphorus, the inhibition of phosphorus on the activity of 2D-MOF peroxide-like was also an inhibition reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Diagram Analysis of Vulcanization Reaction
The principle of rubber curing was to heat a mixture of rubber and sulfur or other curing agents, so that the sulfur reacted with the double bonds in the rubber to form a cross-linked structure. During the operation of the flat-plate curing machine, the hot plate raises the temperature of the rubber compound and causes the rubber molecules to cross-link. Its structure changes from a linear structure to a net-shaped structure. This process can obtain products with certain physical and mechanical properties, but the rubber compound will begin to soften after being heated. At the same time, the moisture and volatile substances in the rubber compound will be vaporized. From a microscopic point of view, the rubber curing system had its own cross-linking mechanism. Peroxides were compounds containing O-O bonds. This peroxidic bond broke down when heated to produce free radical (the breaking of this bond was called homolytic cleavage because the two electrons in the bond were separated). This free radical had a high reaction activity and was the driving force behind the cross-linking of the compound. Peroxides undergo homolytic cleavage, forming two alkoxy free radical, which takes hydrogen atoms from the chain of the compound. The free radical of the two adjacent chains combine to form a carbon-carbon bond, which is an important feature of the cross-linking of peroxides. In these three steps, the one that determined the speed was the homolitic cleavage of the peroxide-based molecules, which usually took a few seconds to a few minutes (thermal dispersion was usually an important factor). After the formation of the highly active free radical, the next step of the reaction could be completed in a few seconds or even less. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction Diagram of Alkane and Halogen
There were several reactions between the two: 1. ** Substitute Halogenation **: - ** Substituted Halogenation on Aromatic Ring **: It is suitable for aromatic compounds. During the reaction, the hydrogen atom on the aromatic ring is replaced by a halo atom. - ** Aromatic ring side chain and fatty carbon substitution: For aromatic ring side chain and fatty carbon, the hydrogen atom in the structure can be replaced by a halo atom. Among these substitution and substitution, chloride-bromination was more common. 2. ** addition reaction **: An addition reaction between an unsatured carbon (such as a carbon-carbon double bond or a carbon-carbon triple bond) and a single substance such as a halo, hydrogen, etc., thereby introducing a halo atom into the unsatured carbon molecules to form a halo carbon. For example, when an alkene reacted with a single substance, the carbon-carbon double bond would be broken, and two halo atoms would be added to two carbon atoms. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Reaction Diagram of Oxidants and Reductants
When an oxidiser and a reducing agent react, the following relationship exists: the oxidiser obtains electrons, and the valency of the elements contained in it is reduced, resulting in a reduction reaction. The oxidiser itself is reduced to produce a reduction product; the reducing agent loses electrons, and the valency of the elements contained in it increases, resulting in an oxidiser reaction. The oxidiser itself is oxided to produce an oxidiser product. It could be simply represented by the following graph: |reactant| reaction type| Electronic gain and loss| change in valency| product| |----|----|----|----|----| |oxidizing agent| reduction reaction| de electronics| lower| reduzate| |reducing agent| oxidizing reaction| betatopic| rise| oxidative product| For example, in the reaction of burning carbon in oxygen (C + O ^== CO ^, ignition), carbon C is a reducing agent. It loses electrons, and its valency increases from 0 to +4, and is then oxided to carbon dioxide (as an oxided product). As an oxidiser, oxygen O ^is an oxidiser, and it gains electrons. Its valency decreases from 0 to-2, and it is reduced to oxygen in carbon dioxide (as a reduced product). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Experimental Exploration of Alkane Substitution Reaction
How to use the Bilang Photochemical Reaction Instrument
The method of using the Bilant Photochemical Reaction Instrument was as follows: 1. Preparing: - After connecting the power supply, the eight-position reactor (or magnetic stirring device) was placed into the main machine box, and the magneton was placed into the Quartz reaction tube (or reaction vessel). - Check whether the mercury lamp (Xenon lamp), reactor, and cooling water circulation device are connected properly. After pressing the water tank for 5 seconds, select the circulation and cooling mode. 2. Connection in the reaction chamber: - According to the instructions, connect the eight-position reactor (or magnetic stirring device) in the reaction dark box to the power interface of the lamp. 3. Controller operation: - He adjusted the power knob on the controller to the maximum. - He turned on the fan switch on the controller and the reactor switch in turn. The fan worked to discharge the air from the reaction chamber. 4. Operation of the reactor: - Turn on the power switch on the eight-position reactor (or magnetic stirring device) and adjust the stirring speed as needed. 5. Lighting and power adjustment: - Turn on the lights. The light source power adjustment of the biochemical reactor is located in the center of the controller. The light source power can be adjusted according to the needs. 6. Time setting: - Use the microchip timer on the top right corner of the controller of the biochemical reactor to set the working time as needed. Note: - Regardless of whether a mercury lamp or a xenon-type lamp was used for experiments, the lamp source must be placed in a Quartz Cold Trap. The temperature limit sensor must be placed in the Quartz Cold Trap, and only 1/3 of it should be exposed. If it exceeded 50 degrees, the power would be cut off. - It is recommended to turn off the lights and let the supporting low-temperature cooling circulation device continue to run for 30 minutes before stopping the operation to avoid damage to the instrument due to excessive temperature. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Brand of Regular Photo-Catalysis Reaction Instrument
Some of the official brands of the photo-catalyze reactor were Ou Xi, Shanghai Bilang, and Luyor. These brands of photocatalysis reactors had their own characteristics in terms of performance and functions, and could be applied to different scenarios for photocatalysis research. For example, Ou Xi's OX-GH- II reactor, Shanghai Bilang's biochemical reactor had advanced design concepts and excellent performance, while Luyor's parallel biochemical reactors such as Luyor - 3416 and Luyor - 3419 had been improved in many aspects and had different functional advantages. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Diagram Analysis of Glycerol Dehydrating Reaction
There were two ways to dewater the glycerol: intermolecular dehydration to obtain diglycerol and polyglycerol, and intermolecular dehydration to obtain acrolene. In the gas-phase dehydration reaction system of glycerine, the reaction was related to the acidic nature of the catalyst. For example, the activity of Zirconium Phosphates prepared by the precipitations method was the highest in this system, which could make the conversion rate of glycerine reach 100% and the acrolein-like selectively reach 81%. In terms of biochemical reactions, the process of glycerase decomposing the tributyl-ester to obtain glycerol would release a certain amount of water. This process involved the production of glycerol and the loss of water. In addition, in the ninth step of the brewing of Xiaoqu liquor, under the catalyst of enolase, 2-Phosphoglyceric acid was dehydrated to form 2-Phosphoenol-Pyruvate (the reaction needed to be activated by M2 +). However, there was no graphic data on the reaction process of dehydration of glycerine, so no graphic analysis could be provided. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>