Chemical Tube Bubbles black filled icon
Capped test tube half filled with liquid, bubbles inside and rising above the opening
About the Chemical Tube Bubbles black filled icon
A rounded-bottom test tube with a rimmed cap holds liquid to just under half its height, with small bubbles inside the fill and three more escaping above the mouth. The rising bubbles suggest an active reaction or a sample under test. Use it in laboratory software, chemistry lessons, medical testing pages, research reports and science app onboarding.
The tube is tall and narrow with a straight body, the fill level drawn as one horizontal stroke, and the bubbles vary in size to imply movement. Sits well next to flask, microscope and dropper icons. At small sizes the escaping bubbles can merge, so trim them.
This is the solid black filled version of the chemical tube bubbles icon: a bold silhouette that reads clearly at 16-24 px and on dark or busy backgrounds, and prints well in one colour.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
