Chemical Tube black filled icon
Test tube with liquid in the lower half and bubbles rising from the open top
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About the Chemical Tube black filled icon
A round-bottomed test tube stands upright with a thick collar rim, liquid filling its lower half behind an uneven surface line, two bubbles suspended inside and two more escaping above the mouth. It reads instantly as a reaction in progress and fits chemistry lessons, laboratory and research sites, medical testing flows, pharmaceutical pages and science app navigation.
The narrow vertical body and wide rim give it a clear silhouette at small sizes, while the circular bubbles break up the empty upper section. Combine it with flask, microscope and molecule icons for a matching lab set, and place it at 32 px or larger so the tiny bubbles survive.
This is the solid black filled version of the chemical tube icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
Download it free as a scalable SVG vector or transparent-background PNG in seven sizes (16 to 512px), copy the SVG code straight into your project, or open it in the free online editor to change colors, apply gold, silver, neon and gradient styles, animate it, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
