Phase Diagram Calculator
Explore phase states for supported pure substances using sourced critical points, triple points, and vapor-pressure correlations.
V2 · Transparent calculation method
V2 uses reference constants for supported pure substances. It no longer predicts critical or triple points from SMILES.
Current verified dataset: water (H2O). Additional substances require sourced reference data.Phase Diagram Results
| Current Phase | |
|---|---|
| Critical Point | |
| Triple Point | |
| Saturation pressure at input temperature | |
| Reference and model | |
| Method version | phase-diagram-2.0 |
Method, source and limitations
Method version: phase-water-2.0- Calculation method
- Reference constants and an Antoine vapor-pressure correlation for supported pure substances.
- Data source
- Published reference constants identified in the result; current verified substance is water.
- Assumptions and limitations
- Educational pure-substance model only; not a universal mixture or process phase simulator.
- Verification example
- For water, enter temperature and pressure to compare with the modeled saturation boundary.
Educational Model · Last validated: 2026-07-28
Result guidance
How does this tool calculate the result?
Reference constants and an Antoine vapor-pressure correlation for supported pure substances.
How should I interpret the result?
Educational pure-substance model only; not a universal mixture or process phase simulator.
How can I verify the result?
For water, enter temperature and pressure to compare with the modeled saturation boundary.