用N-硝基二乙醇胺二硝酸酯(DINA)和叠氮化钠为原料,在二甲基亚砜中反应合成了一种分子中含—N—NO2,—N3,—ONO2基团的新型含能增塑剂,3-硝基-5-叠氮基-3-氮杂戊醇硝酸酯(PNAN)(粗品)。粗产品经硅胶柱色谱分离净化。所得纯产品的纯度为9...用N-硝基二乙醇胺二硝酸酯(DINA)和叠氮化钠为原料,在二甲基亚砜中反应合成了一种分子中含—N—NO2,—N3,—ONO2基团的新型含能增塑剂,3-硝基-5-叠氮基-3-氮杂戊醇硝酸酯(PNAN)(粗品)。粗产品经硅胶柱色谱分离净化。所得纯产品的纯度为98.60%。纯产品的结构用IR、1 H NMR及元素分析表征。测试得到PNAN的密度为1.46-3g·cm,热分解温度为172℃,玻璃化转变温度为-41℃,粘度为19.5 mPa·s,摩擦感度为12%,撞击感度为56%。展开更多
A new chromogenic reagent, 1-(5-nitro-3-benzopsendothiazde)-3-(4-phenylazophenyl) -triazene (NBPTPAPT) has been synthesized and used as a sensitive reagent for the spectrophotometric determination of cobalt. In the pr...A new chromogenic reagent, 1-(5-nitro-3-benzopsendothiazde)-3-(4-phenylazophenyl) -triazene (NBPTPAPT) has been synthesized and used as a sensitive reagent for the spectrophotometric determination of cobalt. In the presence of Tween-80,the reagent with Co (Ⅱ) forms a yellow complex (1∶2) in the buffer solution of Na2B4O7-NaOH at pH10.54. The apparent molar absorptivity is 1.22×105L·mol-1·cm-1 with the linear range of 0-240μg/ L for Co (Ⅱ) by dual-wavelength spectrophotometry. Trace cobalt in vitamin B12 and tea samples has been determined with satisfactory results.展开更多
文摘用N-硝基二乙醇胺二硝酸酯(DINA)和叠氮化钠为原料,在二甲基亚砜中反应合成了一种分子中含—N—NO2,—N3,—ONO2基团的新型含能增塑剂,3-硝基-5-叠氮基-3-氮杂戊醇硝酸酯(PNAN)(粗品)。粗产品经硅胶柱色谱分离净化。所得纯产品的纯度为98.60%。纯产品的结构用IR、1 H NMR及元素分析表征。测试得到PNAN的密度为1.46-3g·cm,热分解温度为172℃,玻璃化转变温度为-41℃,粘度为19.5 mPa·s,摩擦感度为12%,撞击感度为56%。
基金Natural Science Foundation of Fujian Province (No.D0410027)
文摘A new chromogenic reagent, 1-(5-nitro-3-benzopsendothiazde)-3-(4-phenylazophenyl) -triazene (NBPTPAPT) has been synthesized and used as a sensitive reagent for the spectrophotometric determination of cobalt. In the presence of Tween-80,the reagent with Co (Ⅱ) forms a yellow complex (1∶2) in the buffer solution of Na2B4O7-NaOH at pH10.54. The apparent molar absorptivity is 1.22×105L·mol-1·cm-1 with the linear range of 0-240μg/ L for Co (Ⅱ) by dual-wavelength spectrophotometry. Trace cobalt in vitamin B12 and tea samples has been determined with satisfactory results.