Thiophene 2 Carbohydrazide
quinoline thiophene imidazole thiazole

thiophene-2-carbohydrazide

Taiy Chemical

    Specifications

    HS Code

    451708

    Chemical Formula C5H6N2OS
    Molar Mass 142.18 g/mol
    Appearance White to off - white solid
    Melting Point 168 - 170 °C
    Solubility In Water Slightly soluble
    Solubility In Organic Solvents Soluble in ethanol, DMSO
    Odor Odorless (usually)
    Purity Typical ≥98%
    Ph Aqueous Solution Near neutral

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    Frequently Asked Questions

    As a leading thiophene-2-carbohydrazide supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    What are the main uses of thiophene-2-formylhydrazide?
    "Tiangong Kaiwu" says: Arsenic, the nature is as fierce as a wolf and a tiger, and a person will die when he takes it for a dollar. It is a thing, although it is highly poisonous, it has great use.
    The main use of arsenic, one is in medicine. Ancient physicians used the poison of arsenic skillfully, using poison to fight poison. Such as scabies and sores, if all medicines are ineffective, apply the agent of arsenic, which can remove saprophyte and generate new ones to heal evil diseases. Cover arsenic has the power of corrosion, which can remove rotten flesh in sores and sores, and help new muscles grow. However, you need to be careful when using it, and the amount of pinching is related to life and death. Those who are not proficient in pharmacology dare not try it lightly.
    The second is in metallurgy. Arsenic is used in metal smelting, which In the past, copper often contained impurities in copper, which affected the texture. A little bit of arsenic can be combined with impurities, floating on the copper liquid, skimming it away, and the copper is pure. When coinage is minted, arsenic is also used to make the texture of the coin uniform, the outline is clear, and it is convenient for circulation.
    Third, in agriculture. Although arsenic is poisonous, it can be used to make pesticides. Sprinkled in the field, it can repel pests and ensure the safety of crops. In the past, pests were rampant, crops were damaged, and arsenic was sprinkled, pests were avoided, and the farmland could be harvested hopefully. However, it is also known that its poison should not be used too much to avoid damaging the soil, and the damage will last for a long time.
    Although arsenic is a highly toxic thing, it can be used well, and it has great contributions to medicine, smelting Appropriate use of it is a good recipe for the world; use of the loss, it is a deadly weapon. Therefore, it is necessary to understand its nature and use it with caution in order to obtain its benefits and avoid its harm.
    What are the physical properties of thiophene-2-formylhydrazide?
    Lead is the genus of hardware. Its properties are in the earth veins and have various physical characteristics.
    Lead is heavy and soft, and its color is dark and lustrous. Its specific gravity is quite large, and it feels sinking when placed in the palm of your hand. It is soft and flexible in nature, and can be cast at will, beaten into pieces, and twisted into pills. Although it is relatively stable at room temperature, it will melt into liquid in case of fire, and can be injection molded to make tools. And lead has good sound insulation and radiation protection, often to shield harmful rays and protect people's health.

    < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br > < Br Its quality is brittle, it is fragile when hit, and its cross-section is uneven. It contains highly toxic, and the ancients often feared its harm. However, there were also doctors who made good use of it, using poison to fight poison and treat all kinds of evil diseases. Calcined in fire, it decomposes, giving off a pungent smell, which is the reason for the decomposition of its sulfide.
    Both of lead
    are also used in alchemy. Ancient alchemists believed that it could refine the medicine of longevity, but many of them caused illness due to accidental ingestion of lead
    . The reason is that lead
    toxicity accumulates in the viscera, damaging people's vitality and endangering people's lives.
    The world uses lead, and takes its heavy falling, soft casting and protective properties to make utensils, make guns and bullets, and set up protective barriers. As for lead, because of its severe poison, ordinary people avoid it, and only physicians and alchemists occasionally use it. However, all should be cautious to prevent the scourge of poisoning. The nature of lead has its own strengths, and each has its own harm. Those who use it should understand its reasons and use it well, so that they can obtain its benefits and avoid its harm.
    Is the chemical property of thiophene-2-formylhydrazide stable?
    Mercury is also a chemical substance, and its properties are unique, not stable.
    Mercury, at room temperature, is in the shape of a liquid, with silver light flowing, like smart water, but its essence is not water. Looking at its physical properties, the surface tension is quite large, and it can be gathered into round beads, rolling freely on the plane. Its density is very high, more than several times heavier than ordinary liquids.
    As for chemical properties, although mercury is not extremely active, it should not be ignored. When heated, mercury can slowly vaporize and disperse in the surrounding space. This gaseous mercury is very toxic. If inhaled by humans, it can cause damage to the viscera, especially the liver and kidneys. And mercury can combine with many metals to form amalgam. This process of synthesis, although there is no violent reaction such as combustion or explosion, quietly changes the characteristics of metals.
    When mercury meets sulfur, it quickly combines to form mercury sulfide, which is a relatively stable compound. However, in the natural environment, mercury also goes through complex cycles. It is released from volcanic eruptions or escapes with industrial waste gases. Once it enters water and soil, it will remain for a long time. It can be converted into methylmercury under the action of microorganisms. This substance is particularly toxic and bioconcentrated. It accumulates through the food chain layer by layer, and eventually endangers human health.
    Looking at the various characteristics, the chemical properties of mercury are difficult to call stable. Due to the fact that it can vaporize and be toxic under normal conditions, it can also combine with other substances, and it can change in the environment, which is a serious disaster. Therefore, when using mercury, one should be cautious and must not ignore its potential harm due to the strangeness of its appearance.
    What are the synthesis methods of thiophene-2-formylhydrazide?
    There are many kinds of alum recorded in "Tiangong Kaiwu", such as alum, green alum, yellow alum, bile alum, etc., and the methods of alum refining are also different.
    Take alum as an example, its preparation is quite exquisite. Take the stone containing alum first. This stone may have a special appearance and is mostly hidden in the mountain ore veins. After mining this stone, it needs to be crushed into small pieces. Then it is placed in a kiln and calcined at a suitable temperature. The kiln fire needs to be carefully controlled. If it is too prosperous, the alum will be damaged, and if it is too weak, the alum will not be effective. When it is calcined to a suitable extent, the alum in the stone gradually emerges and is in a fluid state. Pour it into a large tank while it is hot, and when it cools, the alum will crystallize at the bottom of the tank.
    In the preparation of green alum, the raw material is often a special ore with a blue-black color. First crush the ore into a powder, put it in a special container, add an appropriate amount of water, and stir well. Then cook slowly over low heat. When cooking, you need to keep stirring to make the ore fully blend with the water. As the water temperature rises, green substances gradually precipitate out of the water, which is the initial state of green alum. Continue to boil, until the water is less and less, the crystals of green alum become more and more obvious. At this time, stop the fire and wait for it to cool, and carefully take out the crystals of green alum.
    The synthesis of yellow alum, the raw materials and methods are different. Select more minerals of a specific origin, wash them, and place them in an open container. Exposure to sunlight for many days, during which you need to turn them from time to time. When the surface color of the mineral gradually turns golden, add a little special medicine and stir well. Then place in a cool and ventilated place, and after a period of time, you can get yellow alum.
    As for bile alum, it is often found near copper-containing veins. When the ore containing bile alum is mined, rinse it with water to remove impurities. Then put it in a large pot, add an appropriate amount of acid, and bring it to a boil over high heat. During the boiling process, close observation is required. When the color of the solution changes to dark blue, stop heating. When it cools, the bile alum will crystallize.
    All these alum, the method of synthesis contains the wisdom of the ancients, and it is exquisite in terms of heat, raw materials, and operation. It needs to be carefully studied by later generations to understand the true meaning.
    What are the precautions for thiophene-2-formylhydrazide in storage and transportation?
    The grain of the soldiers should be paid attention to in storage and transportation.
    The first thing to store and accumulate is to choose a place. A high and dry place must be selected to avoid the trouble of water and dampness. If it is in a humid place, the corn is easy to rot and cannot be eaten. And the system of the warehouse should be firm and firm to prevent the damage of rats and birds. The door of the warehouse is often closed, and no idlers should be allowed to enter, to prevent theft. Furthermore, the number of grain stored should be calculated in detail. The number of soldiers must be measured, the time of garrison, and the difficulty of transportation elsewhere, to determine the amount of grain stored. If too little is stored, it may not be enough; if too much is stored, it will be a waste of storage, and it will be vulnerable to long-term accumulation.
    As for transportation, the safety of the route is of paramount importance. On the way, if you encounter thieves, or if you encounter obstacles in mountains and rivers, you should take precautions. The escort must choose a loyal and reliable person with high martial arts to protect the safety of the grain cart. And when transporting, it is advisable to choose a convenient road, but you should not ignore its safety. If the road is rough and difficult, although it is close, it is not advisable to choose; if it is smooth and easy to travel and there are many thieves, you should find another way. The equipment for transportation must also be in good condition. The axles of the cart and the bridle of the cattle and horses should be inspected first to prevent damage in the middle and delay the journey. When transporting, it is time to celebrate the journey, and do not be too tired of people and animals. Rest on time, so that the cattle and horses can have a breather, and when the coachman has the strength to support, the journey can be guaranteed smoothly.
    Furthermore, there are rules between handover. There must be detailed accounts for the delivery of the storage and the receipt of the garrison. The quantity and quality of the grain should be checked one by one, and there should be no slight mistakes. If there is a deficit or damage, it must be held accountable. In this way, the storage and transportation can be properly carried out, the grain of the garrison will not be in danger of being scarce, and the border will be guarded.