C - Chemistry – Metallurgy – 01 – C
Patent
C - Chemistry, Metallurgy
01
C
260/545.4
C01C 3/20 (2006.01) C01B 21/093 (2006.01)
Patent
CA 1186696
ABSTRACT OF THE DISCLOSURE For the production of thiosemicarbazide, hydrazine is reacted with hydrogen cyanide and sulphur to form hydra- zine thiocyanate, which is converted into the thiosemicarbazide by treatment at elevated temperature. The reaction is carried out with advantage in a polar solvent.
420923
Kleemann Axel
Klenk Herbert
Schulz Wolfgang
Aktiengesellschaft Degussa
Marks & Clerk
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