Description
Did you know that the black ink in your markers is not actually black ink? Our chromatography discs allow students to separate most water-soluble inks into their original blended pigments, revealing their hidden identities. Simply make several dots or lines of different colors in the center of the disc using water-soluble markers. Water from a cup is drawn up to the center of a disc using a paper towel. As the water is absorbed into the filter disc the pigments separate into a colorful display. See which inks are pure, and which are blended. Test different types of markers to see which separate the best. Test on other pigments such as those found in flowers. Teaches about light, color, and capillary action. Pack of 100 discs available in 9 cm or 11 cm diameters. (Markers and cups not included.) For ages 6+.Chromatography Filter Paper
SKU: TCH-GROUP-1892790
Description
Shipping from
This product is shipped from our supplier's warehouse in CT, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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