4-Thiazolecarboxylicacid, 2-phenyl-, ethyl ester

Saltpeter, its nature is cold. "Tiangong Kaiwu" says: "Nitrate and salt are of the same mother, evaporated from moisture under the earth, and found on the ground." Saltpeter is mostly born in brine land and between cliffs. Its color may be white or slightly yellowish, like frost and snow, brittle and fragile.
Saltpeter is very useful in fire attack techniques. It can help fire, making it abnormally fast. It is also indispensable in the way of alchemy, and can participate in the refining of many alchemy prescriptions to change the properties of alchemies. Gai because of its ability to support combustion, it will explode in case of fire, and can cause other things to burn quickly.
As for aconitine ethyl acetate, this is a chemical synthesis. Aconitine, highly toxic, its ethyl acetate derivative, has unique physical properties. At room temperature, it is mostly liquid, clear and transparent in color, with a special smell and slightly pungent. Its density is lighter than water, insoluble in water, but it can dissolve with many organic solvents.
Aconitine ethyl acetate has active chemical properties and can undergo various reactions such as hydrolysis and esterification under specific conditions. Because it is derived from aconitine, which is highly toxic, it is necessary to be extremely cautious when using it. If it is not careful, it will cause serious disasters and hurt people. Although it may have potential uses in the field of medical research, due to toxicity restrictions, the application range is narrow, and it needs to be explored with extremely high technology and safety measures.

Arsenic, that is, arsenic trioxide, highly toxic, white powder, odorless and tasteless.
Realgar, the main ingredient is arsenic disulfide, its color is orange yellow, and it is brittle. Realgar can be oxidized into highly toxic component arsenic trioxide, that is, arsenic, after being heated to a certain temperature in the air.
Trichlorfon acetate is an organophosphorus insecticide. Its pure product is white crystalline, has an aromatic taste, and is easily soluble in organic solvents such as water and ethanol. In alkaline solution, hydrogen chloride will be quickly removed and converted into more toxic dichlorvos, but it is more stable in acidic and neutral solutions.
Arsenic is fierce, and it can be used as a medicine to rob sputum and cut malaria. However, its toxicity is severe. Ordinary people eat a little by mistake, and they will have severe abdominal pain, vomiting and diarrhea, and even life-threatening.
Realgar has the effect of detoxifying and killing insects, removing sputum from dryness and dampness, and cutting malaria. However, it also contains toxicity. It should not be taken in excess or for a long time, and it should not be applied on a large area for external use.
Although trichlorfon acetate is an insecticidal agent, its toxicity should not be underestimated. If it is accidentally touched or taken by mistake, it can cause dizziness, nausea, and vomiting in light cases. In severe cases, it can cause convulsions, coma, and even death from respiratory failure. When using, be extremely cautious and follow the law

To prepare ethyl 4-phenylbenzoate, the following ancient method can be used.
First take the amount of phenol, catalyzed by sulfuric acid, and then make chloroform reverse. This step aims to make the benzene of phenol be replaced, and chloroform can generate dichlorocarbons in the environment. In this activity, 4-chloro-phenol is obtained by attacking the benzene and the benzene position. Due to the fact that the benzene group is supplied with the benzene group and the substitution is more fixed, 4-chloro-phenol is obtained. The mixture is reversed, and the 4-chloro-phenol is separated by liquid separation.
Take 4-chloro-phenol at times, mix the oxidized aqueous solution, and add water to make it hydrolyzed. The chlorine atom is substituted by the alkyl group under the alkyl group to form 4-alkyl phenol. When the reaction is sufficient, neutralize with dilute acid and precipitate 4-alkyl phenol.
Then, take 4-alkyl phenol, alkyl alcohol and alkyl sulfuric acid and place them together in the reverse container. The alkyl sulfuric acid is both catalytic and water-absorbing. Adding this mixture, the alkyl alcohol of the alkyl alcohol of the alkyl phenol is esterified and reacted with alkyl water to form ethyl 4-alkyl benzoate. After the reaction is completed, the cold reaction solution is washed with alkyl and carbonated acid solution to remove the acid that has not been reacted and catalyze the acid, etc., and then the liquid is separated, dried, and steamed. 4-alkyl benzoate can be obtained.
During operation, it is necessary to pay attention to the control of the parts in each step, such as the degree of resistance, the amount of resistance, and the amount of resistance, etc., and it is not hasty to mention the number of steps. Only in this way can 4-ethyl benzoate with high efficiency and high strength be obtained.

In "Tiangong Kaiwu", caramel (malt) is used for it. The method is to use a bucket of glutinous rice, wash the steamed rice, cold it into two liters of malt, mix well, soak it in water, put it in a warm place, and cook it over time. Caramel has a wide range of uses in ancient times, and there are three important ones.
One is seasoning. In ancient cooking, caramel can add flavor and sweetness, making dishes richer. For example, when making certain cakes and preserves, adding caramel can make them moderately sweet, soft and waxy in taste, and attractive in aroma. In soup, an appropriate amount of caramel can reconcile all flavors and make the soup taste mellow.
The second is medicinal. Traditional medicine regards caramel as a good medicine. Its sweet and warm nature returns to the spleen, stomach and lung meridians, and has the effect of nourishing the middle and nourishing qi, relieving pain, moisturizing the lungs and relieving cough. It can be used to treat abdominal pain caused by deficiency of the spleen and stomach, such as abdominal pain caused by deficiency of the spleen and stomach. Caramel is often combined with other medicinal materials to relieve pain. It can also relieve dry lung cough, nourish lung yin, and reduce cough symptoms.
Third is brewing wine. When brewing wine, caramel can provide sugar to yeast and promote fermentation. The sugar contained in it is converted into alcohol by yeast action, which can improve the quality and flavor of the wine, make the brewed wine taste more mellow, more rich aroma, and increase the sweetness and complexity of the wine.

Saltpeter, sulfur, and charcoal are the three most important substances in gunpowder. When storing and transporting saltpeter, pay attention to everything.
First, moisture-proof is essential. Saltpeter is hygroscopic and easily absorbs water vapor from the air, causing it to become humid. If saltpeter is damp, its quality and performance are affected. In case of moisture agglomeration, it is difficult to mix evenly with other substances when preparing gunpowder, making the ignition and explosion performance of gunpowder uneven. And the damp saltpeter is prone to chemical reactions for a long time, which damages its chemical stability. Therefore, it should be stored in a dry place and properly wrapped in oil paper, cloth bags, etc., to prevent moisture from invading.
Second, it is very fireproof. Although saltpeter is not flammable, it is a strong oxidizing agent. In case of open flames and hot topics, it can support combustion, and even cause violent combustion or explosion. The storage place must be kept away from fire and heat sources, and fireworks are strictly prohibited. During transportation, it should also prevent friction and impact to cause heat and fire. If the transport vehicle passes through a high temperature area or is exposed to the hot sun, cooling measures should be taken.
Third, isolated storage. Saltpeter should not be stored and transported with flammable, explosive and reducing substances. Because saltpeter is in contact with reducing agents, it is easy to cause oxidation and reduction reactions, and there is a risk of igniting combustion and explosion. If charcoal is a flammable reducing agent, if it is mixed with saltpeter, once the conditions are suitable, it will be dangerous. Therefore, it should be classified and isolated according to its chemical properties to ensure safety.
Fourth, avoid heavy pressure. Saltpeter is easily broken and agglomerated under pressure, which is not conducive to subsequent use and use. When storing, it should be placed smoothly, and the bottom saltpeter should not be overpressed due to excessive stacking. During transportation, it should also prevent bumps and collisions from causing package damage and heavy pressure agglomeration.
Sulfur should also be noted for storage and transportation. It is flammable and can burn in case of open flames and hot topics. Storage should be in a cool and ventilated place, away from fire and heat sources, and the storage temperature should not exceed 35 ° C. Packaging should be sealed to prevent volatilization. Transportation should be carried according to the specified route, and do not stay in densely populated areas and open flames.
Charcoal is stored and transported. It is the first to be fireproof, because it is flammable. It should be stored in a dry and well-ventilated place, away from fire sources and oxidants. Take good protection during transportation to prevent leakage and scattering.
Arsenic is highly toxic. Storage must be safe and reliable. Special personnel are set up to manage it, and a strict collection system is established. Store it in a special warehouse, double and double locked, and strictly isolated from food, medicine and other chemicals. Special vehicles for transportation, escorted by special personnel, with obvious warning signs to ensure transportation safety, and prevent environmental pollution and personal poisoning caused by leakage.