The electropathic addition reaction between propene and bromic water did not require any special reaction conditions. The reaction formula was: CH2 = CH-CH3 + Br2 → CH2Br-CHBr-CH3. Under illumination or with a free radical initiator, a free radical substitution reaction could occur: CH2 = CH-CH3 + Br2 → CH2 = CH-CH2Br2 (the main reaction). At the same time, a free radical addition reaction could also occur: CH2 = CH-CH3 + Br2 → CH2Br-CHBr-CH3. Under appropriate conditions, the reaction of propene and Bromine to form 1,3 -dibromopropan is usually carried out in an inactive solution. Read more exciting novels for free
The reaction between the two could be directly carried out without any additional conditions, and the tribromobenol could be formed by dripping it directly. Dropping a small amount of the solution of the sulfuric acid into the concentrated Bromine water, a white deposit immediately appeared, and then turned into a yellow deposit. This phenomenon only occurred when a small amount of potassium ether was dropped into concentrated Bromine water. If there was too much carbolic acid, only white precipitations would appear; if a small amount of bromic water was dropped into the carbolic acid solution, only white precipitations would appear. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The water contained Cl2, and since Cl2 was more oxidiser than Bromine, Bromine gas and Cl2 did not react. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The solution was separated into layers. Bromine water was denser than toluene. Bromine water was in the lower layer. The upper layer was orange-red, and the lower layer was almost colorless. This was because toluene did not react with the bromine water, but it could extract the bromine in the bromine water. After the separation, the upper layer of the organic layer (the solution of the solute of the solute) reacted violently with a small amount of iron powder, producing reddish-brown vapor. After purification, a colorless oily liquid was obtained. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
From the reference, it can be seen that the reaction between Bromine and Red Phosphorus can occur. In one reaction, 10g of Red Phosphorus and 20mL of water are placed in a flask, and 35mL of Bromine is slowly added through a dropping funnel under negative pressure. This reaction can be used to prepare bromic acid. However, there was no information about the other reaction conditions of the reaction. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Cyclopropan was unstable due to its high tension, and it was not easy to undergo a substitution reaction when it reacted with Bromine, but it was easy to undergo an addition reaction. However, in some cases, a substitution reaction may occur. The chemical equation is C3H8 + Br2-> C3H7BrBr4, and a ring-opening reaction occurs to form 1 -Bromopropan (>>> CH3CH2CH2Br4,>> where>> represents C3H6). However, the specific reaction conditions may vary depending on the type of substitution on the cyclopropan and the reaction conditions (such as the catalyst, etc.). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Butane and Bromine vapor would undergo a substitution reaction under light conditions. During the reaction, the hydrogen atoms in the Butane molecules would gradually be replaced by Bromine atoms, forming a variety of Bromobutane products. For example, n-Butane produced various kinds of chloride-Butane through free radical substitution reaction. The reaction between Butane and Bromine vapor was similar. During the reaction, similar free radical would participate in the reaction, gradually forming products such as monobromobutane and producing Brr. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
以下是几种水解制氢的反应式: 1. 铝水反应制氢: - \(2Al +4H_{2}O = 2AlO(OH)+3H_{2}\uparrow\) - \(2Al + 6H_{2}O=2Al(OH)_{3}+3H_{2}\uparrow\) 2. 硼氢化钠催化水解制氢:\(NaBH_{4}+2H_{2}O\stackrel{催化剂}{=\!=\!=}4H_{2}+NaBO_{2}\) <a href="/?from=ask_words" style="color:red" target="_blank">点击前往免费阅读更多精彩小说</a>
The compound that reacted the fastest with helium was (CH3)2CH= CH2, an addition reaction. In the addition reaction, the higher the density of the electron cloud on the double bond, the more favorable it was for the electropathic addition reaction. The methyls in the structure of (CH3)2CH= CH2 had an induction effect of donating electrons, which made the electron cloud density on the double bond relatively high, so the addition reaction speed with helium was the fastest. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
The reaction device for preparing n-Bromobutan was as follows: 1. ** Reflow Device **: - The reaction was carried out in a 50ml round bottom flask. First, a certain amount of water and concentrated sulfuric acid were added. After mixing them evenly and cooling them down, n-Butanol and Na Bromate were added. A few pieces of Zeolite were added to prevent bumping. A spherical condensing tube was installed to perform the reverse flow. The top of the condensing tube was connected to a gas absorption device (using 5% solution of Na_2H_4 as the absorption solution). The round-bottom flask was shaken intermittently during the reaction. 2. ** Distillation device **: - After the reaction was completed and cooled down, the reaction device was changed into a retorting device, and all the tributyl bromides were heated and evaporated. 3. ** Purification device **: - During the purification process, a separating funnel was used. The distilled liquid was washed with water first, then the crude product was transferred to another dry separating funnel to be washed with concentrated sulfuric acid to separate the sulfuric acid layer as much as possible. The organic layer was washed with water, saturated NaHCO3 solution, and water respectively. The product was transferred to a dry conical flask and dried by adding dehydrated CaCl2. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Bromine and potassium can react directly to form potassium bromate. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>