Factory Supply Thiourea powder CAS 62-56-6 Raw Materials

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Uses and synthesis of Thiourea powder

Thiourea powder English name: Thiourea, white bright bitter crystals, soluble in cold water, ethanol, slightly soluble in ether, easy to deliquesce in air, at 150 ℃ converted to ammonium thiocyanate, with the reducing properties, Thiourea CAS 62-56-6 can make the free iodine reduced to iodine ions.Thiourea CAS 62-56-6 rich in Thiourea CAS 62-56-6 is rich in reactivity and is used to prepare various compounds. It reacts with a variety of oxidizing agents to form organic compounds and with inorganic compounds to form soluble addition compounds.

Thiourea Raw Materials also has a wide range of application prospects in petrochemicals and pharmaceuticals, many pharmaceutical molecules contain structural fragments of thiourea, and Thiourea Raw Materials is also an important intermediate for the synthesis of heterocyclic compounds. For example, many oral hypoglycemic and antithyroid drugs on the market are thiourea molecules. In addition, Thiourea powder compounds have excellent insecticidal activity and are widely used in the field of pesticides.

Applications / Functions of Thiourea powder

1. Thiourea powder is used in the manufacture of sulfonamide drugs, dyes, resins, compression molding powder, etc. It is also used as a vulcanization accelerator for rubber and a flotation agent for metal minerals.
2. Thiourea CAS 62-56-6 is used as analytical reagent, complexation indicator and color layer analysis reagent.
3. Thiourea Raw Materials are used as intermediates in the production of drugs. Thiourea Raw Materials is used as an intermediate in the production of pharmaceuticals. Used as flotation agent in mining industry. It is also used as a treatment agent for fabrics and paper, and as a printing and dyeing auxiliary.
4. Thiourea Raw Materials is the intermediate of fungicide Seed Dressing, herbicide Ethofumesate, Tebuconazole, etc. It is also the raw material of medicine Thiamethiazole, and can be used as the raw material of dyestuffs, resins, compression molding powders, and can be used as vulcanization accelerator of rubber, and as flotation agent of metal minerals.
5. Thiourea CAS 62-56-6 is used as raw material for synthesizing sulfathiazole, methionine and fat pig tablets. Used as raw material for dyestuff and dyeing auxiliaries, resin and compression molding powder. It can also be used as vulcanization accelerator for rubber, flotation agent for metal minerals, catalyst for phthalic anhydride and fumaric acid, and antirust and corrosion agent for metal. In photographic materials, it can be used as a developer and color mixing agent, and can also be used in the electroplating industry. It can also be used in the electroplating industry.Thiourea CAS 62-56-6 is also used in diazo-sensitive paper, synthetic resin coatings, anion-exchange resins, germination promoters, fungicides, and many other applications. Thiourea is also used as fertilizer.

Physicochemical Property of Thiourea powder

Thiourea CAS 62-56-6 White or light yellow glossy flaky, columnar or needle-like crystals, with a bitter taste. Soluble in water and ethanol, almost insoluble in ether.

• Thiourea powder White glossy bitter crystals, soluble in cold water, ethanol, slightly soluble in ether, easy to deliquesce in air, converted to ammonium thiocyanate at 150 ℃, with reducing properties, can make the free state iodine reduced to iodine ions.Thiourea powder is rich in reactivity, used in the preparation of a variety of compounds.Thiourea Raw Materials can react with a variety of oxidizing agents to produce organic compounds, and can be used in the preparation of a variety of compounds. Thiourea Raw Materials can react with a variety of oxidizing agents to form organic compounds, but also with inorganic compounds to make easily soluble addition compounds.
• Thiourea Raw Materials also has a wide range of applications in petrochemical and pharmaceutical chemicals. Many pharmaceutical molecules contain structural fragments of thiourea, and thiourea is also an important intermediate in the synthesis of heterocyclic compounds. For example, many oral hypoglycemic and antithyroid drugs on the market are thiourea molecules. In addition, thiourea compounds have good insecticidal activity and are widely used in the field of pesticides. In organic synthesis, they are used in the manufacture of thiourea derivatives such as methylthiourea, diethylthiourea, diphenylthiourea, thiourea dioxide, and catalysts for the production of phthalic anhydride and fumaric acid. Used in the preparation of epoxy resin fast curing agent, synthetic resin coating, anion exchange resin. It is also used as a toughening agent for melamine formaldehyde resin adhesive. In photographic materials, Thiourea Raw Materials can be used as developer and toner, azo-sensitive paper reducing agent. It is also used as vulcanization accelerator for rubber, flotation agent for metal minerals, dyeing and dyeing auxiliaries, processing auxiliaries for fabrics, nylon and polyester fibers, paper treatment agents, electroplating additives, metal antirust agents, pesticides, fertilizers and so on.

production methodprocess of Thiourea powder

• Absorb hydrogen sulfide with lime milk under negative pressure and cooling to produce calcium thiourea solution. React calcium thiourea with calcium cyanamide (lime nitrogen) at 1:5 molar ratio at 80℃ for 3h, then obtain thiourea solution, filtration, concentration, cooling and crystallization, shake filtration and drying, then obtain the finished product of Thiourea Raw Materials.In addition, the ammonium thiocyanate method and diazomethane method can be used to produce Thiourea Raw Materials.
• Production method of the preparation method is to barium sulfide and sulfuric acid or hydrochloric acid reaction, hydrogen sulfide gas is absorbed by the negative pressure of the milk of lime to produce calcium hydrosulfide solution, and then react with calcium cyanamide, calcium hydrosulfide and calcium cyanamide molar ratio of 1:5, under constant stirring, the reaction temperature of (80 ± 5) ℃, the reaction time of 3h, filtered under negative pressure, can produce thiourea liquid, and then after evaporation, filtration, cooling, crystallization, the crystal thiourea, centrifugal dewatering and drying, can be obtained. Then after evaporation, filtration, cooling, crystallization, that is, crystal thiourea, centrifugal dehydration and drying that is, Thiourea powder. reaction equation such as: BaS + H2SO4 → BaSO4 ↓ + H2S ↑ 2H2S + Ca (OH) 2 → Ca (SH) 2 + 2H2O
• Production method synthetic method with barium sulfide and hydrochloric acid (or sulfuric acid) reaction, with the milk of lime negative pressure absorption, and then reacted with lime nitrogen, after filtration, cooling crystallization, centrifugal separation, drying, to produce Thiourea CAS 62-56-6 .

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