Chemical Tube Bubbles black outline icon
Capped test tube half filled with liquid, bubbles inside and rising above the opening
About the Chemical Tube Bubbles black outline 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 black outline version of the chemical tube bubbles icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
Get it free as an SVG vector or transparent PNG (16-512px), copy the SVG code, or restyle it in the free online editor — recolor any part, add gold, neon or gradient effects, animate it, or export EPS, PDF and DXF.
Free for personal and commercial use with attribution.



















