对－烷基－邻－亚硝基酚萃取钴的性能研究

在乙二醇－异丙醇混合溶剂中，借醋酸铜催化，由亚硝酸钠与对－烷基酚制备了烷基分别为特丁基、十二烷基和Ｃ（６－１１）混合烷基的对－烷基－邻－亚硝基酚．考察了对－特丁基－邻－亚硝基酚（ＯＮＰ）的萃取性能．二－２－乙基己基磷酸（Ｐ２０４）对ＯＮＰ有协萃作用．ＯＮＰ可以在酸性条件下（ｐＨ～１．０）从铜、镍中高选择性地萃取钴．

新型有机光致变色材料螺噁嗪的合成

文中以 1,3,3 -三甲基 2 甲叉吲哚啉和亚硝基酚为原料合成了四种螺嗪光致变色化合物 ,分别是 :(1)化合物A :1,3 ,3 三甲基螺吲哚啉 2 ,3′ [3H]萘并 [2 ,1 b][1,4]嗪 ;(2 )化合物B :1,3 ,3 三甲基 6′ 哌啶 螺吲哚啉 2 ,3′ [3H]萘并 [2 ,1 b][1,4]嗪 ;(3)化合物C :1,3,3 三甲基 6′ 二甲胺基 螺吲哚啉 2 ,3′ [3H]苯并 [2 ,1 b][1,4]嗪 ;(4)化合物D :1,3,3 三甲基 6′ 二乙胺基 螺吲哚啉 2 ,3′ [3H]苯并 [2 ,1 b][1,4]嗪。对各化合物进行了一些光致变色试验 。

Simultaneous determination of seven impurities in high-purity cobalt oxide by ICP-AES after matrix separation using 1-nitroso-2-naphthol as a precipitant

A method was developed for the simultaneous determination of seven trace impurities (Cd, Mn, Pb, Zn, Cu, Fe and Ni) in high purity cobalt oxide by ICP AES. The matrix effect was eliminated by preci pitation with 1 nitroso 2 naphthol. The matrix effect of cobalt on the absorptions of trace impurities, the effects of reaction time, pH value, dosage of precipitant on the formation of cobalt 1 nitroso 2 naphthol complex, the effects of hydrochloric acid on the stability of this complex and masking of elements were studied. Recoveries of the impurities in spiked sample are from 90% to 110% with a precision of 1.1% 5.0% RSD. The detection limits of the seven elements are in the range of 0.01 0.24μg/g. The method can be applied to the analysis of high purity cobalt metal, cobalt oxide and other cobalt compounds.

扑热息痛合成新路线的初步探讨

扑热息痛的解热效果较好,作用迅速,毒性低,可采用单剂,深受广大工农兵的欢迎。目前在国内解热镇痛药应用中越来越趋广泛,但由于合成扑热息痛的基本原料——对-硝基酚钠供不应求,采用其他原料合成扑热息痛以满足广大工农兵的需要就有着更重要的意义。遵循毛主席关于“备战、备荒、为人民”的伟大指示,几年来,我院在探讨合成新路线方面初步做了些工作,以苯酚或硝基苯为原料合成对-氨基酚,经酰化制得扑热息痛。现将合成路线介绍如下。