isolated indicator paper white background |
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| navigate by keyword : acid acidic alkaline analyze base bio biochemistry biology blue boiling bubbles chemical chemist chemistry color drink education equipment experiment flask fluid glass healthcare hospital indicator isolated lab laboratory liquid litmus measurement medical method microbiology paper pharmacy reacting reaction research scale school science scientific scientist solution strip tech test uranium white |
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| Isolated pH indicator paper on white background. Industrial chemical measurement instrument for precise control of ph acid or alkaline level on clean backdrop. |
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