2-Cyanoguanidine or commonly dicyandiamide is an amine derived from
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.
(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.
ammonia in alkaline conditions under polymerization. Control in these
conditions after polymerization, and then cooling and crystallization,
isolation, drying, dicyandiamide derived products.
dicyandiamide content 99%, product consumption per ton of lime nitrogen
(21% nitrogen) 4239kg.
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.
(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.
producers are in Germany, Canada and Japan. Cyanamide is occassionally
marketed in North America in crystalline form, but primarily as a 50%
cyanamide is available as a 50% solution and in crystalline form, from the
Suddeutsche Kalkstick Stoffwerke, Trostberg Germany.
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
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