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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 19, Number 6
JKCSEZ 19(6)
December 20, 1975

Title	Study of Hydrazine-Bromine Reaction in Sulfuric Acid Media 히드라진과 브롬의 반응의 메카니즘에 관한연구
Author	Q. Won Choi, Byoung Bin Park 최규원, 박병빈
Keywords
Abstract	히드라진과 브롬의 반응속도를 직접 혼합법 및 일정전류 전해법에 의한 브롬화 이온의 전이시간을 측정하는 방법으로 측정하여, 황산 및 브롬화칼륨의 농도가 작을 때에 2차 반응속도 상수는 각각 10ⁿ(n=5) 및 10ⁿ(n=3)mole-1/sec-1로 얻어졌다. 이는 N2H4 + Br2 -> N2H2 ｋ1=10ⁿ(n=5) 및 N2H4 + Br2 -> X, k2=10ⁿ(n=3)인 것으로 간주된다. 황산과 브롬화 이온의 농도가 클때에는 속도상수가 크게 감소하나 그 원인은 해명하지 못하였다. The rate constant for the N2H4-Br2 reaction has been measured in sulfuric acid media by direct mixing method and chronopotentiometric method. The former gave 105 mole-1 l sec-1 whereas the latter 103 mole-1 l sec-1. It has been inferred that the former represents the rate constant for N2H4 + Br2 → N2H2 and the latter for N2H2 + Br2 → X. When the concentrations of KBr and H2SO4 are both high, drastic reduction of rate constant has been observed.
Page	403 - 407
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