Arrow 61

Unicode
U+21CC
Category
Arrows
HTML Entity
⇌
CSS
\21CC
The ⇌ symbol, formally known as the Rightwards Harpoon Over Leftwards Harpoon, is primarily used in chemistry to denote a reversible reaction or chemical equilibrium. In Unicode, it belongs to the arrows block and visually consists of two stacked half-arrows pointing in opposite directions. Beyond science textbooks, you might spot it in technical documentation to illustrate bidirectional processes or a state of physical balance.

How to Type

Windows
Alt+8652
macOS
Control+Command+Space then search "equilibrium" or "harpoon"
Linux
Ctrl+Shift+U then 21CC
HTML
⇌ or ⇌

In Programming

In LaTeX and markdown math blocks, this symbol is generated using `\rightleftharpoons` to typeset chemical equilibrium equations. It is generally used for visual display purposes rather than as a functional operator in programming languages.

Tags

arrow bidirectional process chemical equilibrium arrow chemistry notation double harpoon equilibrium equilibrium sign harpoon harpoon arrows math reversible reaction symbol right left rightwards harpoon over leftwards harpoon unicode chemistry

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