Indicator strips on a faïence lab desk.

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Size: 3888px × 2592px
Photo credit: © Radu Razvan / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: acid, analyze, base, biology, blue, chemical, chemistry, colorful, colors, desk, equipment, experiment, focus, green, indicator, lab, laboratory, litmus, mark, measurement, medicine, object, paper, perspective, ph, reaction, school, science, show, strips, technology, tool, university, violet