Cerium is the most abundant one among the rare-earth elements. Based on its unique physical and chemical properties, cerium can be used as many kinds of products with different properties and widely used in metallurgy, petrochemical industry, machining, light industry, environmental protection, agriculture, military industry and other fields. Also, cerium is an indispensable component of new energy, emerging industries, advanced equipment manufacturing and other high-tech industries. In this paper, we review recent researches on the application of cerium-based materials closely related to production and life, including metallurgy, luminescent and igniting materials, glass and ceramics industry, polishing powder, catalysts.

The collecting process, method and results regarding Chinese naming new elements including the element 113, the element 115, the element 117 and the element 118 are introduced in this paper. Based on this report, taking this collecting work as an example, the naming principle of chemical elements in Chinese and some inspirations are discussed in this paper.

Glyphosate is the world's largest single pesticide agent, with a market demand of more than 800,000 tons in 2017.As the largest exporter of glyphosate, China produced more than 500,000 tons of glyphosate in 2017, about 80% of which was exported. This paper introduces glyphosate from the aspects of structure and property, poisonousness, synthesis, usage amount and pollution abatement. Its purpose is to arouse the public's attention to environmental protection and help the public to establish the awareness of environmental protection.

Molar heat capacity of a substance is one of the important parameters for calculation in quantity of heat, entropy and enthalpy changes. To enable college students to master comprehensively the concept of the molar heat capacity and its calculation method, taking the gas as an example, the molar heat capacities of the ideal gas, Van der Waals gas, Onnes gas and Redlich-Kwong gas were systematically summarized and analyzed based on literature researches. In addition, the molar heat capacity of Soave-Redlich-Kwong gas was deduced by using the first law of thermodynamics and the related thermodynamics formula. The internal relation between the molar heat capacity and the equation of state, and the difference between the molar heat capacity at constant pressure (C_P) and the molar heat capacity at constant volume (C_V) are discussed and analyzed. These findings and results obtained from this study have a certain reference value for the teaching expansion of molar heat capacity of the gas and college students' innovative self-study.

Taking instrument analysis as an example, this paper discusses the bilingual teaching under the blended teaching mode, including teaching design, resource library construction, new teaching mode construction and teaching practice, classroom teaching evaluation, and teaching team construction. In order to further expand the students' international vision, improve students' ability to use foreign language to acquire the frontier knowledge of instrument analysis and self-learning ability, and improve the effect of classroom teaching and the level of internationalization of the course.

Chemical potential changes have been analyzed and discussed in class of phase equilibrium question by utilizing the differential element method. The knowledge points of Clausius Clapeyron equation and relation between saturated vapor pressure and external pressure, as well as Kelvin equation and colligative property formula of dilute solution, were associated organically. Learning difficulty corresponding of related knowledge content was decreased significantly. Meanwhile, the cultivation of innovation thinking of students was trained and promoted efficiently.

The preparation of butyl acrylate was designed and implemented in the organic chemistry experiment which was combined the characteristics of polymer materials and engineering specialty. Firstly, the preliminary experiment scheme was designed by students through reviewing literature in which the catalysts, reaction conditions, properties of raw materials and products were compared and analyzed. Secondly, the influence of catalyst, reaction temperature and reaction time on the yield of butyl acrylate were investigated by students in the experimental teaching stage, in which variation trend of yield of butyl acrylate was analyzed and summarized by students. Finally, the experiment report was written based on experimental results and extracurricular development. The design and arrangement of this experiment are helpful for students to realize basic scientific research methods, enhance their ability to analyze and solve problems, and improve their innovative ability and practical ability.

The following problems in traditional experiments of determination of CO₂ molecular weight are analyzed, for instance, too much reagent consumption and "three wastes" emissions. Based on green chemistry principle some optimizing schemes, such as purity test with mixed solution of sodium hydroxide and phenolphthalein instead of matches, and gathering gas in injector instead of iodine flask were proposed. The improved experiment meets the requirmends of green chemistry and can make students understand the importance of the ecological environment.

A supported nano-composite catalyst MoS₂/MIL-101(Fe) was prepared by solvothermal method. The structure and morphology of the catalysts were characterized by X-ray powder diffraction, UV-Vis diffuse reflectance spectra, scanning electronic microscopy and Fourier transform infrared. Then its photocatalytic degradation efficiency on ibuprofen and photocatalytic products were analyzed. The concentration of ibuprofen before and after photocatalytic degradation was quantitatively analyzed by HPLC and its photocatalytic products were qualitatively analyzed by LC-MS. In this experiment, we combined the method of preparing composite catalyst with a variety of instrumental analysis methods, to allow students to understand the material preparation methods and its application. At the same time, we enable student to learn how to use these analysis and test instruments.

Under the premise of using the water sample prepared with potassium hydrogen phthalate and iron sulfate replaced by mercury sulfate, several factors such as the volume of water sample, the volume of potassium dichromate solution, the volume of sulfuric acid and heating reflux time are discussed and a number of experimental programs suitable for COD determination of teaching experiment are designed in the paper. Not only the purpose of experimental teaching can be achieved very well, but also the generation and discharge of toxic and harmful waste liquid can be reduced, the cost of experiment are greatly reduced. Therefore, it can be used as green teaching experiment scheme for COD measurement and generalized.

With 30 pre-service chemistry teachers from a normal university in Guangdong as participants, this study employed open-ended questionnaire and interviews to investigate their epistemology of chemistry (EOC) and its teaching. The results indicated that participants' views on the nature, source, justification, and evaluation of chemistry knowledge were characteristic of the dialectical materialism, whereas only certain dimensions of EOC were found to be domain-specific. Despite their willingness to implement the EOC teaching, they tended to lack appropriate strategies. Implications for pre-service chemistry teacher education are also discussed.

From the perspective of professional certification of engineering education and national standards for teaching quality, the reform measures by comparing the opening process of chemical industry universities at home and abroad, and in view of the shortcomings in the teaching process of most chemical universities in China were obtained as follows. (1) Optimal transfer process principle curriculum knowledge system from the perspective of the continuous improvement. (2) Integrating the development history of transport process into curriculum teaching and improving students' active learning interests. (3) Coupled teaching methods of analog teaching, case teaching and discussion teaching highlighting the student center. (4) Curriculum reform standards highlighting the student center and highlighting output-oriented. The reformed course of the process of transfer process not only improves students' interests ins independent learning, but also improves students' ability to solve complex engineering problems and achieves good teaching results.

Aiming at the problems of simple experiment content and single detection method in basic chemistry of medical college, We provide a series of optimization methods, such as using pH meter, adding buffer concentration gradient and buffer ratio. The results show that students can not only master the ability of acid resistance and alkali resistance of buffer solution, but also understanding the principle of buffer function more deeply.

A comprehensive experiment about extraction process, content determination and antioxidant activity of traditional Chinese medicine were designed. The parameters of extraction of flavonoids from bamboo leaves were investigated using bamboo leaves as resources. The optimal extraction parameters for total flavonoids from bamboo leaves were as follows:ethanol concentration 70%, the ratio of material to liquid was 1:25, extraction time 2.0 h, and extraction temperature 80℃. According to optimal conditions, 2.24 mg/g flavone yield was achieved, and their antioxidant activity was also studied. This experiment involved the following knowledge, for instance, the extraction theory of inorganic and organic chemistry, the application of analysis methods of analytical chemistry, and the operation of spectrophometer in instrumental analysis. This experiment increased the practical operating ability of students. Meanwhile, their ability to data analysis and results evaluation were also improved.

In this paper, a simple observation method based on smart phone picture recording was established, which can be used in the measurement of melting point and boiling point, the observation of ammonium chloride's crystallization and many other phase change experiments. On the one hand, this method can obviously improve the observation effect of the phase change experiments and facilitate students to clearly and accurately capture and record the morphological changes in the phase change process. On the other hand, the recorded experiment process can be replayed time after time, which is convenient for the students' writing of the experiment report and teachers' inspection and guidance. So, this method based on the smart phone picture recording showed great help to improve students' enthusiasm and experimental effect.

In the course teaching of chemical process design, the achievement of scientific research project "ammonia-based flue gas desulfurization process design project" was transformed into a typical teaching case, and combined with the modern design method. The chemical simulation software Aspen Plus was also introduced to design the chemical process, so that students can understand the gas-liquid contact process involving the phase absorption process, the selection and application of separation sequences, energy matching and integration optimization more intuitively. This teaching method can explain the complex chemical design process thoroughly, make theory teaching more vivid, and improve the teaching quality. Most important of all, it can improve the students' actual engineering design ability.

Based on the "Questionnaire on the Use of Curriculum Materials by Science Normal Students", this paper investigated the situation of the use of curriculum materials by 167 science normal students in a university in Guangzhou during their education practice. It was found that the science normal students showed good condition of curriculum materials use in all dimensions, but not at a very high level. The normal students with different majors were significantly different in the dimensions of "scientific inquiry", "STSE" and "teacher learning"; the normal students in different level of practice schools showed significant difference in the dimension of "STSE"; the normal students in different teaching grades had no significant difference in each dimension; the normal students with or without tutor experience demonstrated significant differences in the dimensions of "scientific inquiry", "STSE" and "teacher learning". Finally, the article put forward some suggestions on science normal education.

Chemistry is bound to our daily life widely and tightly. Looking into foreign undergraduates' education with chemistry-related majors, biochemistry theory and practice are well combined with common chemical materials and phenomena, which enables students to understand or solve daily life problems better, as well as bringing up interests in chemistry. This paper will introduce one chemical experiment of undergraduates' lab, using simple hydrolysis and thin layer chromatography methods qualitatively analyze aspartame component and its' hydrolysis products in sugar free drinks. As an important food additive, aspartame is a simple methyl ester of phenylalanine/aspartic acid dipeptides, this experiment investigates hydrolysis of polypeptides under acid/basic conditions simultaneously, which can be described as multiple in one. The experiment's arrangement and execution are worth being learned by domestic organic chemistry labs, additionally, it will help students to know and understand primary structure of polypeptides and pave foundations for the future study of biochemistry.

As a unique group,missionaries played a role of communicators in the establishment of Chinese modern science. This paper summarizes the development status of Chinese chemical subjects before the western missionaries come to China, and analyzes the main purpose and background of missionary work in China. As well as enumerating the main ways and results of the chemical knowledge that missionaries communicated in China, aiming to explore the role of the missionaries in the process of chemical transmission in modern China. By analyzing the motivation and effect of Chinese missionaries in China, the paper tries to make an objective evaluation of its role in the establishment of modern chemical process in China.