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What is Thiourea and How to Buy Thiourea ?

Views: 6     Author: Site Editor     Publish Time: 2022-07-19      Origin: Site Inquire

What Is Thiourea ?


Thiourea, a white bright bitter crystal, soluble in cold water, ethanol, slightly soluble in ether, is easy to deliquesce in the air and turns into ammonium thiocyanate at 150 ℃. It has reducibility. Chemicalbook can reduce free iodine to iodine ions. Thiourea is highly reactive and is used to prepare various compounds. It can react with a variety of oxidants to produce organic compounds, and can also be made into soluble addition compounds with inorganic compounds.

Thiourea Uses

  1. Thiourea used to manufacture sulfonamides, dyes, resins, compression molding powder, etc., as well as vulcanization accelerator of rubber, flotation agent of metal minerals, etc

  2. Thioruea used as analytical reagent, complexing indicator and chromatographic analysis reagent

  3. Thiourea used as an intermediate in the production of drugs

  4. Thioruea used as vulcanization accelerator in rubber industry

  5. Thiourea used as flotation agent in mining industry

  6. Thiourea used as fabric and paper treatment agent, printing and dyeing auxiliary

  7. Thiourea is an intermediate of fungicide Shizaoling, herbicides acetochlor, terazine, etc. It is also the raw material of medical thiazole, and can be used as the raw material of dyes, resins, and compression molding powder

How Is Thioruea Made?

  1. Use lime milk to absorb hydrogen sulfide under negative pressure and cooling to generate calcium hydrosulfide solution. The reaction of calcium hydrosulfide and calcium cyanamide (lime nitrogen) in a molar ratio of 1:5 at 80 ℃ is carried out at the left and right sides of the Chemicalbook for 3h to obtain thiourea solution, which is filtered, concentrated, cooled, crystallized, and filtered and dried to obtain the finished thiourea. In addition, it can also be prepared by ammonium thiocyanate method and diazomethane method.

  2. Calcium hydrogen sulfide solution is prepared by reacting barium sulfide with sulfuric acid or hydrochloric acid, and hydrogen sulfide gas is absorbed under negative pressure by lime milk. Then it reacts with calcium cyanamide. The molar ratio of calcium hydrogen sulfide to calcium cyanamide is 1:5. Under constant stirring, the reaction temperature is (80 ± 5) ℃, and the reaction time is 3h. After being filtered under negative Chemicalbook pressure, thiourea liquid can be generated. After evaporation, filtration, cooling, and crystallization, crystal thiourea can be obtained, The finished product is obtained by centrifugal dehydration and drying. The reaction equation is as follows: BaS+H2SO4 → BaSO4 ↓+H2S ↑ 2H2S+Ca (OH) 2 → Ca (SH) 2+2H2O

  3. In the synthesis method, barium sulfide reacts with hydrochloric acid (or sulfuric acid), lime milk is absorbed under negative pressure, and then reacts with lime nitrogen. After filtration, cooling and crystallization, centrifugation and drying, the finished thiourea is prepared. Its BaS+2HCl → BaC12+H2SChemicalbook ↑ CaO+H2O → Ca (OH) 2Ca (OH) 2+2H2S → Ca (SH) 2+2H2O2CaCN2+Ca (SH) 2+6H2O → 2 (NH2) 2CS+3Ca (OH) 2

Thiourea factory pictureThioruea factory picture 1

Where To Buy Thiourea In Bulk ?

If you require bulk quantities of this chemical, you can buy Thiourea on our website or contact us for further details.

Thiourea FAQ

1. Are you trading company or manufacturer?
We are chemical factory in China. So we can provide wholesale price.

2. How can I get the samples?
We can provide you free sample for our existing products, the lead time is about 1-2 days.You just need to pay the sample delivery cost.

3. Can you provide relevant documents?
Of course. We can provide Commercial Invoice, Packing List, Bill of loading, COA, Health certificate and Origin certificate. If your markets have any special requirements, just let us know.

4. Do you accept third party inspection?
Yes. we can.

5. If the inspection result can not meet the agreement between the two sides,can you bear all the losses caused by this?
Yes, we can. We guarantee that the samples provided will meet the needs of our clients and we will bear the risk of default.

6. What types of containers are used to package products from your company?
It is generally 20'FCL or according to customers requirement.

7. How long is your delivery time?
Generally it is with 7 days if the goods are in stock. According to quantity your required,the delivery time may slightly change.

8. What's your terms of payment?
We can accept various payment methods, L/C, T/T, Paypal, Western Union etc.

9. Can your company accept the special requirements of your customers?
Of course, we can.

10. What kind of products does your company still manufacture?
We main deal chemicals, Pet products, Bicycle, Fishing Gear etc.

What Is The Latest Thiourea Price ?

As Thiourea price usually changes depending on the price of raw materials. In order to get the latest price of thiourea, please contact us and we will provide a quotation right up to your country.

Where To Buy Thiourea ?

Here at QIDI Chem we have Thiourea for sale. We export worldwide, so you can contact us for a FREE quotation via email address or send a message on WhatsApp for a fast response at +86-139-1500-4413.