Reviews literature on chromatography examining: books, reviews, student experiments; chromatographic systems, techniques, apparatus; detecting and identification of separated zones; preparative chromatography and radiochromatography; and applications related to specific materials (such as acids, alcohols, amino acids, antibiotics, enzymes, dyes,…

An experiment which introduces students to infrared spectroscopy and the solubility behavior of various organic compounds is described. The experiment also serves to integrate some of the basic chemical reactions of functional groups with their spectral properties. (JN)

Describes an experiment in which several metallo complexes with different central atoms are prepared. Background information on these compounds is provided, including requirements for their formation, preparation methods, and comments on their general properties and analysis. (JN)

Carbaryl, 1-naphthyl-N-methylcarbamate, is the biodegradable (soft) insecticide most commonly marketed by the Union Carbide Corporation under the trade name of Sevin. Procedures for the synthesis and testing of carbaryl and for the testing of some compounds similar to carbaryl are provided. Equations showing its synthesis from methyl isocyanate…

Social behaviors of 10- and 12-month-old infants were studied as a function of experimental context (home and laboratory) and experimental history (home rearing and day care). Results suggested that the experimental context influenced infant social behaviors. No differences attributable to rearing condition as a main effect were found. (Author/SB)

Describes the construction and use of two pieces of equipment for teaching materials related to the propagation of an electric field and the parallel plate capacitor. (GS)

Describes a laboratory experiment in which the students construct and calibrate ion-selective electrodes, then use them to analyze an unknown. (MLH)

Describes the development and provides an example of the type of student investigation that is now considered sufficient for the practical part of the 'A' level physics examination. (GS)

Discusses the preparation and properties of nitrogen oxides and the reaction of magnesium with nitric acid. (MLH)

Discusses a multipurpose organic chemistry experiment that illustrates a variety of reaction types within a single, three-hour laboratory period. (MLH)

Describes the determination of vanillin and of other aromatic aldehydes by amperometric titration with 2, 4-dinitrophenylhydrazine. (MLH)

Describes a method in which metals can be identified by the direction of the e.m.f. generated when the junctions in a circuit containing two dissimiliar metals are at different temperatures. (MLH)

Describes an experiment that utilizes a potentiometric, redox titration in N, N-dimethylformamide. (MLH)

Describes a simple experiment using an inexpensive RCA 931A photomultiplier, in which a measurement of the secondary electron emission coefficient is measured at the last dynode. (MLH)

Describes the chemistry of dyeing, including acid, basic, vat, and disperse dyes. Includes laboratory experiments. (MLH)