摘要
有机螯合剂与金属离子螯合形成的金属螯合物被广泛地用作矿物浮选过程中的捕收剂。采用WHR-15型氧弹式量热计实验测定了2种重要的螯合剂N-苯甲酰苯胲(BPHA)和α-安息香肟在氧气中的标准摩尔恒容燃烧热力学能,同时根据热化学方程式和盖斯定律计算其标准摩尔恒压燃烧焓分别为(-6 587.24±1.89)kJ/mol和(-7 239.11±6.22)kJ/mol,其标准摩尔生成焓分别为(-100.455±2.5)kJ/mol和(-127.925±6.24)kJ/mo。l所获得的结果对该2种物质的其他热力学数据的获得提供了重要依据。
Metal chelates of organic chelating reagent and metallic ion are considered to have promising capabilities for functioning as collectors in ore flotation. The standard molar energies of constant volume combustion for N-benzoyl-N-phenylhydroxylamine （BPHA） and α-benzoin oxime were determined by WHR-15 oxygen bomb calorimeter. Their standard molar enthalpies of constant pressure combustion, calculated by using chemical equation and law of Hess, are （ - 6 587.24 ± 1.89） kJ/mol and （ - 7 239.11 ± 6.22 ） kJ/mol respectively; the derived standard molar enthalpies of the formation for the compounds are （ - 100. 455 ± 2. 5 ） kJ/mol and （ - 127. 925 ± 6.24 ） kJ/mol, respectively. The results obtained can provide an important basis for the two substances to obtain other thermodynamic data.
出处
《化学工程》
CAS
CSCD
北大核心
2010年第4期55-57,共3页
Chemical Engineering(China)
基金
国家资源"973"项目(2007CB613601)
关键词
N-苯甲酰苯胲
α-安息香肟
标准摩尔恒压燃烧焓
标准摩尔生成焓
N-benzoyl-N-phenylhydroxylamine
α-benzoin oxime
standard molar enthalpy of constant pressure combustion
standard molar enthalpy of formation
