![The-liquid-changing-color-from-green-to-yellow-acid-color-moves-along-the-spiral-of-the-glass-capacitor-against-the-laboratory-background.-Bio-fuel-development.-Drug-production.-Chemical-experiments.-High-quality-4k-footage](https://videocdn.cdnpk.net/harmony/content/video/partners1644/thumbnails/hdeb8753b_0011cm_small.jpg)
The liquid changing color from green to yellow acid color moves along the spiral of the glass capacitor against the laboratory background. Bio-fuel development. Drug production. Chemical experiments. High quality 4k footage
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