Cognitive Surplus
Flame Test High-Opacity Metallic Gel Pens Pack of 6
$14
A flame test is a kind of analysis used in chemistry that helps detect metal ions in a sample. When the sample is introduced to a flame, the flame changes color depending on which element is present.
.7 mm tips
Metallic Gel Ink Compatible with Dark Matter Notebooks
Each pack contains 6 unique colors:
Strontium, Calcium, Sodium, Copper, Selenium, Cesium