溶解度

The "hairing" phenomenon on highN compound fertilizer is for urea being changed into a kind of acicular subtransparent substance on the surface of compound fertilizer granules under the interation of temperature gradient and moisture.

剖析了高氮复合肥&长毛&结块的原因，主要是由溶解度较大的尿素在温度梯度和水分的作用下，在复合肥颗粒表面逐渐生成的一种针状放射型半透明体所引起。

According to the experimental data, the solubilities of succinic acid in above mentioned five solvents increase with increasing temperature and they are of g...

结果表明λh方程模型和NRTL方程模型均能很好地关联丁二酸在五种有机溶剂中的溶解度数据。

Water-soluble single-walled carbon nanotubes were prepared by successive ammonium persulfate oxidation and ammonium sulfamate chemical modification.

通过过二硫酸铵氧化和氨基磺酸铵化学修饰两个步骤，制备了在水中有较大溶解度的单壁碳纳米管。

Concentration of terephthalic acid was determined by high-performance liquid-phase chromatography.

通过特制的取样装置取样后用高效液相色谱测定对苯二甲酸的溶解度。

The solubility of terephthalic acid in aqueous acetic acid was experimentally determined at 423.15~503.15 K and at the weight percent of the acetic acid of 60%, 70%,80%, 90% and 100% by using this method.

用该法测定了423.15~503.15K下对苯二甲酸在醋酸质量分数为60%、70%、80%、90%和100%的醋酸水溶液中的溶解度。

For resolving the lack of solubility data terephthalic acid in aqueous acetic acid, a method of determining the solubility at high temperature was developed.

针对对苯二甲酸工业中的溶解度基础数据缺乏的问题。

The logarithm difference values of partition coefficients of the compounds in butyl ether/water and in cyclohexane/water system were used for the measurement of the Lewis acidity, while the logarithm difference values of partition coefficients in trichloromethane/water and in tetrachloromethane/water system were used for the measurement of the Lewis basicity, and they were used successfully to differentiate the relative strength of Lewis acidity and basicity for 59 benzene and its derivates.

以化合物在正丁醚/水和环己烷/水溶剂体系中分配系数的对数差作为酸性指数，以其在氯仿/水和四氯化碳/水溶剂体系分配系数的对数差作为碱性指数，提出了一种新的度量有机物Lewis酸碱性的方法，按此方法成功地区分了59种苯系物Lewis酸碱性的相对强弱；并成功地将上述酸碱性指数引入定量结构—性质/活性相关研究之中，探讨了苯系物的正辛醇/水分配系数、水溶解度和土壤有机碳吸附系数等常见理化性质与其Lewis酸碱性间的相关性并建立了相应的定量模型，发现它们之间存在良好的相关性。

Keywords p -toluic acid;solubility;laser monitoring technique

对甲基苯甲酸；溶解度；激光监视技术

In the metastable phase diagram of the quaternary system Li+,K+,Mg~(2+)//SO_4~2-_-H_2O at 15℃, there are three invariant points of four co-existed phases, seven univariant metastable solubility curves and five crystallizing zones.

四元体系Li+，K+，Mg~(2+)//SO_4~2-_-H_2O在15℃介稳相图存在3个四元无变量点、7条单变量介稳溶解度曲线和5个介稳结晶区。

In the metastable phase diagram of the quaternary system Li+,K+,Mg~(2+)//SO_4~2-_-H_2O at 15℃, there are three invariant points of four co-existed phases, seven univariant metastable solubility curves and five crystallizing zones.

四元体系Li+，K+，Mg~2+(来源：bcAB77C论文网www.abclunwen.com//SO_4~2-_-H_2O在15℃介稳相图存在3个四元无变量点、7条单变量介稳溶解度曲线和5个介稳结晶区。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。