The solid-liquid equilibrium data for the ternary mixture of o-dibromobenzene + m-dibromobenzene + p-dibromobenzene were determined by differential scanning calorimetry (DSC).
采用差示扫描量热法,通过对一系列“拟二元”物系固液平衡数据的测定,得到了邻二溴苯、间二溴苯和对二溴苯三元物系的固液平衡数据。
Solid-liquid equilibrium data for three binary mixtures of o-dibromobenzene + m-dibromobenzene, p-dibromobenzene + m-dibromobenzene, and p-dibromobenzene + o-dibromobenzene were determined by differential scanning calorimetry and their corresponding eutectic type phase diagrams were presented.
采用差示扫描量热法测定了邻二溴苯与间二溴苯、对二溴苯与间二溴苯和对二溴苯与邻二溴苯的3个二元固液平衡数据,同时绘制出相应的简单低共熔型二元相图。
The solid-liquid equilibrium data for the ternary mixture of o-dibromobenzene + m-dibromobenzene + p-dibromobenzene were determined by differential scanning calorimetry (DSC).
采用差示扫描量热法,通过对一系列“拟二元”物系固液平衡数据的测定,得到了邻二溴苯、间二溴苯和对二溴苯三元物系的固液平衡数据。
Solid-liquid equilibrium data for three binary mixtures of o-dibromobenzene + m-dibromobenzene, p-dibromobenzene + m-dibromobenzene, and p-dibromobenzene + o-dibromobenzene were determined by differential scanning calorimetry and their corresponding eutectic type phase diagrams were presented.
采用差示扫描量热法测定了邻二溴苯与间二溴苯、对二溴苯与间二溴苯和对二溴苯与邻二溴苯的3个二元固液平衡数据,同时绘制出相应的简单低共熔型二元相图。
The solid-liquid equilibrium data for the ternary mixture of o-dibromobenzene + m-dibromobenzene + p-dibromobenzene were determined by differential scanning calorimetry (DSC).
采用差示扫描量热法,通过对一系列“拟二元”物系固液平衡数据的测定,得到了邻二溴苯、间二溴苯和对二溴苯三元物系的固液平衡数据。
1,4-Diethynylbenzene and 1,4-diethynyl-2,5-bis-nonyloxy-benzene were prepared from p-dibromobenzene derivatives and 2-methyl-but-3-yn-2-ol by two steps of Sonogashira coupling reaction and removal of acetone in an alkaline medium.
以对二溴苯衍生物和甲基丁炔醇为原料,通过Sonogashira钯催化偶联反应得到的产物,在碱性条件下脱丙酮获得1,4-二乙炔基苯和标题化合物。
The effects of p-dibromobenzene and naphthalene on the reaction were studied.
以甲基氢二氯硅烷为单体,利用超声波条件下Wurtz聚合的方法,合成了可溶性聚硅烷,研究了对二溴苯和萘对反应的影响,并用红外光谱(IR)、凝胶渗透色谱(GPC)、X射线衍射(XRD)对产物进行了表征。
Methylene Bisthiocyanate was synthesized by dibromomethane with sodium thiocyanate in ethanol-water using compound R as phase transfer catalyst.
以二溴甲烷和硫氰酸钠为原料,乙醇-水为溶剂,化合物R为相转移催化剂合成了二硫氰基甲烷。
In order to improve the therapeutic efficacy of retinoid carboxylic acids,a symmetric type of methylene diester was designed and synthesized by coupling two molecular retinoid carboxylic acids with one molecular dibromomethane.
为了改善类维生素A酸的疗效,利用两分子类维生素A酸与一分子二溴甲烷偶联,设计合成了具有结构对称性的4种类维生素A酸甲叉二酯,即全反式维A酸甲叉二酯、异维A酸甲叉二酯、阿维A酸甲叉二酯、阿达帕林甲叉二酯,并以1H NMR,MS对它们进行了结构确证。
Methods:Ethylene dibromide among the workplace air was sampled by injector directly or absorbed by tube filled with charcoal,and desorbed by ethyl acetate.
目的:探讨工作场所空气中1,2-二溴乙烷的采样和测定方法。
Synthesis of media of chelate solid-phase time-resolved fluorescence immunoassay—synthesis of 4,4′-dibromo-6,6′-dimethyl-2,2′-bipyridine(Ⅰ);
固相时间分辨荧光免疫分析螯合剂(Ⅰ)中间体—4,4′-二溴-6,6′-二甲基2,2′-联吡啶的合成
The complex preservative for citrus containing dibromohydantoin or bromochlorohydantoin as the antiseptic,stearyl monoglyceride as coating agent and Tween -80 as the dispersant agent was developed.
以二溴海因或溴氯海因为杀菌剂、硬脂酸单甘酯和吐温80乳液为涂膜剂和分散剂制备的复合保鲜剂,用于蜜桔杀菌保鲜实验,研究了贮存保鲜条件、保鲜过程中营养成分变化,讨论了复合保鲜剂的稳定性。
The solubility of dibromohydantoin with 5% cosolven.
结果表明:加入助溶剂的溴代海因在水中的溶解性明显增强,当加入5%(体积分数)的助溶剂时,水溶液中二溴海因的浓度是无助溶剂时的2。
Objective To observe the subacute toxicity of dibromohydantoin in order to know the safety of its repeated use.
目的观察二溴海因亚急性毒性,以了解其反复使用的安全性。