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Product 12756

By: Bob Becker, Kirkwood H.S., Kirkwood, MO

With the Radial Chromatography Chemistry and Art Guided-Inquiry Super Value Kit, teach how black inks in pens are often mixtures of pigments. Paper chromatography will separate the mixtures. The markers provided produce colorful patterns!

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Product Details

Black inks used in commercially available pens are often mixtures of several pigments, and each pen company usually has its own unique, patented “recipe” for black ink. Paper chromatography can be used to separate these mixtures. This kit incorporates a simple technique in which the solvent moves out radially from a central point. This produces remarkably beautiful circular chromatograms in just minutes. Through a series of hands-on activities, students can exercise their artistic creativity while learning the basics of chromatography. Includes all necessary materials and an assortment of eight water-soluble black markers that each produce unique, colorful patterns. Super Value Kit is complete with enough materials for 180 12.5-cm radial chromatograms, plus 10 extra-large, demonstration-sized (24-cm) chromatograms. Additional sets of black markers are available separately.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Planning and carrying out investigations
Asking questions and defining problems
Developing and using models

Disciplinary Core Ideas

MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter

Crosscutting Concepts

Systems and system models

Performance Expectations

MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.