8 Results
Molecular Models of Dyes   
(Interactive Simulation (1))
The paper on the synthesis of several dyes by James V. McCullagh and Kelly A. Daggett (1) provides us with the JCE Featured Molecules for this month. The authors mention various applications of these dyes, ranging from commercial dyeing to techniques for determining the course of complex biochemical processes. One of the reaction products, rhodamine B, is a member of a family of molecules that are widely used as tunable laser dyes. In this application, the rhodamines are most commonly encountered in a cationic form, rather than in the neutral form shown in the paper. In the cations, the carboxyl group is no longer part of a ring system. Several different members of the rhodamine family are included in the molecule collection because substituents have a marked effect on the effective lasing range of a given dye. Additionally, the solvent and the excitation source also influence the lasing range (2). Students can learn more about the relationship between structure, absorption and emission properties, and lasing ranges of various dyes by consulting ref 2 and from PhotochemCAD, Jonathan Lindsey's free application (3).
Chromium and Its Relatives   
(Article (34))
Volume 03, issue 29 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Tin and Lead   
(Article (34))
Volume 03, issue 26 of a series of leaflets covering subjects of interest to students of elementary chemistry distributed in 1929 - 1932.
Characteristics of Materials   
(Activity, Instructional Material (7), Test, Assessment Material (15))
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Art & Toys   
(Activity, Instructional Material (2), Test, Assessment Material (5))
ACS Science for Kids activities exploring the chemistry involved in art and toys.
Art-ACS Science for Kids   
(Activity, Instructional Material (12))
ACS Science for Kids activities exploring the chemistry involved in art.
Food   
(Activity, Instructional Material (11))
ACS Science for Kids activities that explore the chemical properties of foods.
Amines (30 Variations)   
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A collection of 30 assessment questions about Amines