Rhenium(VII) extraction with 2-ethylhexanoic acid N,N-dialkylhydrazides from acidic solutions
摘要:
Rhenium(VII) extraction with 2-ethylhexanoic acid N',N'-dialkylhydrazides in kerosene from acidic media was studied. Optimal extraction conditions were established depending on H2SO4, HCl and extractant concentrations and the composition of extracted complexes. A mechanism of perrhenate ion extraction and back-extraction with ammonium solutions was proposed.
N′, N′-dialkylhydrazides as inhibitors of acid corrosion of steel
摘要:
The effect of N', N'-dialkylhydrazides of aliphatic carboxylic acids of the general formula C(4)H(9)CH(C(2)H(5)) C(O)NHN(R)(2) on the corrosion behavior of St. 20 steel in 0.1 and 1 M HCl was studied by electrochemical and gravimetric methods.