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🌡️ 2D Phase Diagram — Pressure vs Temperature (2D)

Interactive 2D pressure-temperature phase diagram for water, CO2, nitrogen and ethanol. Real Clausius-Clapeyron melting curve and Antoine-equation sublimation/vaporisation curves, triple point, critical point, and a draggable state point.

Chemistry & Materials2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

An interactive 2D pressure-temperature phase diagram for water, carbon dioxide, nitrogen and ethanol. Drag the state point or use the sliders to see the real melting, sublimation and vaporisation curves, the triple point, the critical point, and which phase (solid, liquid, gas or supercritical fluid) is stable at any condition.

phase diagramthermodynamicschemistrytriple pointcritical pointclausius-clapeyron

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install