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Information @ a Glance

General

  • 2-Cyanoguanidine or commonly dicyandiamide is an amine derived from guanidine.

  • It is a dimer of cyanamide, from which it can be prepared. 2-Cyanoguanidine is soluble in water, acetone, and alcohol, but not in diethyl ether or chloroform.

  • 2-Cyanoguanidine is produced in soil by decomposition of cyanamide.

  • 2-Cyanoguanidine is also used a slow fertilizer. It is an intermediate in the synthesis of melamine and other organic chemicals. Formerly, it was used together with strong oxidizing agents as an explosive.

Process

  • Nitrogen lime (calcium cyanamide) with the water hydrolysis, will be suspended from the hydrolysis of ammonia liquid hydrogen cyanide filtering dehydroepiandrosterone calcium oxide, calcium liquid carbon dioxide-demineralized been cyanide, ammonia.

  • Then, cyanide ammonia in alkaline conditions under polymerization. Control in these conditions after polymerization, and then cooling and crystallization, isolation, drying, dicyandiamide derived products.

  • Industrial dicyandiamide content 99%, product consumption per ton of lime nitrogen (21% nitrogen) 4239kg.

Application

  • DCDA is being employed in a wide variety of applications. It is utilized as an intermediate for a number of resins and
    organic nitrogen compounds, such as guanamides, biguanides,and guanidine.

  • One of the major use of DCDA was in the conversion to melamine which itself finds a wide variety of applications in chemical industry.

  • The Role of Dicyandiamide in StabilizedNitrogen Fertilizer.

Market

  • Dicyandiamide (DCDA) is not produced in India by any manufacturer. This speciality chemical is being imported from countries like U.S.A., China, Japan and Germany to meet the indigenous demand, which is estimated to be approx. 3,000MT per annum.

  • The largest producers are in Germany, Canada and Japan. Cyanamide is occassionally marketed in North America in crystalline form, but primarily as a 50% solution.

  • In Europe, cyanamide is available as a 50% solution and in crystalline form, from the Suddeutsche Kalkstick Stoffwerke, Trostberg Germany.

  • At present there is over capacity situation throughout the entire world in producing Dicyandiamide, and the present demand of DCDA is also shrinking which has lead to the general over capacity situation of the product throughout the entire world.

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