These Hydrion paper strips cover a full range of pH units from very acidic (pH=1) to very basic (pH=12). The color matching chart affixed to the side of the vial provides an easy reference to identify the pH. These strips provide accurate, immediate and reproducible results, and are a good alternative for the limited acid/base results that traditional litmus paper provides. 100 paper strips per vial, 2" x 1/4" each.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
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Arbor Scientific is a leading provider of Physics and Physical Science teaching equipment tested and approved by educators recognized for their expertise. Arbor Scientific works with teachers at all levels to find the ‘Cool Stuff’ – unique demonstration and laboratory tools – and then provides lesson plans, supportive teaching guides and science teaching supplies to make each learning experience fun and effective.