melting point [′melt·iŋ ‚pȯint] (thermodynamics) The temperature at which a solid of a pure substance changes to a liquid. Abbreviated mp. For a solution of two or more components, the temperature at which the first trace of liquid appears as the solution is heated. ...
Bulky substituents such as hydrocarbyl groups like alkyl, cycloalkyl, aryl, alkoxy and dialkylamino groups etc., at C4/C5 decrease the melting point. When multiple substituents are present on fluorene, their effects are additive. 展开 收藏 引用 批量引用 报错 分享 ...
Bulky substituents such as hydrocarbyl groups like alkyl, cycloalkyl, aryl, alkoxy and dialkylamino groups etc., at C4/C5 decrease the melting point. When multiple substituents are present on fluorene, their effects are additive.EWEN JOHN A...
How do you differentiate between fluorene and acetanilide? Suggest procedures and steps involved other than melting point and chromatography.Explain why the melting point of your prepared alum must either be equal to or be less than the actual melting point ...
A melting point at or below ambient temperature is an essential property of ionic liquids being considered as non-volatile replacement solvents. Here we use the Quantitative Structure-Property Relationship QSPR method to correlate and pr... DM Eike,JF Brennecke,EJ Maginn - 《Green Chemistry》 被...
9,9-二甲基-2-芴硼酸 9,9-Dimethyl-9H-Fluoren-2yl boronic acid Cas号 【333432-28-3】 MDL: -- Beilstein EINECS: -- 分子式 C15H15BO2 分子量 238.09 别名 9,9-二甲基芴-2-硼酸分子结构式质量标准熔点Melting point 300°C中文名称:9,9-二甲基芴-2-硼酸中文同义词:9,9-二甲基-2-芴硼酸;9,...
ChemicalBook Provide 82186-77-4(Lumefantrine)Melting Point Boiling Point Density,82186-77-4(Lumefantrine) CAS Chemical Properties MSDS.
Mining the conventional reagents for new application has now become the focal point of spectroanalysis for analysts in many countries. 光谱分析方法在我国的地质、冶金、化工、生物医药等部门已被广泛应用。 更多例句>> 补充资料:X射线光谱分析 分子式: ...
2,7-diaminofluorene 21-acetoxypregnenolone References in periodicals archive ? When new Ingeo 6100D is compared to the existing Ingeo grade 6202D, one of the most often applied grades for fibers and spunbond nonwovens, NatureWorks scientists found: Peak melting point increased by 8CEs from 164Es...
This invention is for a method for varying the melting points and molecular weights of syndiotactic polyolefins by using metallocene catalysts with substituents on the aryl rings of a fluorene ligand in certain positions. Electron donating substituents, for example, dialkylamino, halogen, and alkoxy gr...