Boiling Points of 250+ Common Substances
Interactive Database & Temperature Converter
Follow us on Twitter
Questions? Contact us at contact@myengineeringtools.com
⚠️ ENGINEERING NOTICE & EDUCATIONAL DISCLAIMER: This interactive tool is for preliminary estimation and educational purposes. Values are based on standard atmospheric pressure (1 atm / 101.325 kPa).
Quick Lookup & Unit Converter
Celsius: 100.00 °C
Fahrenheit: 212.00 °F
Kelvin: 373.15 K
Rankine: 671.67 °R
Process Engineering Rules of Thumb
- Pressure Dependency: Boiling points change significantly with pressure. For water, the BP drops to approx. 69°C at the top of Mt. Everest (0.3 atm).
- Azeotropes: Be cautious with mixtures; many common liquids (like ethanol-water) form azeotropes where the boiling point of the mixture is lower than either pure component.
- Safety Margin: In plant design, ensure process temperatures are maintained at least 10-20°C below the boiling point to prevent cavitation in pumps or unintended flashing.
Estimation at Different Pressures
To estimate the boiling point at pressures other than 1 atm, the Antoine Equation is commonly used:
\[ \log_{10} P = A - \frac{B}{C + T} \]Where \( P \) is vapor pressure, \( T \) is temperature, and \( A, B, C \) are substance-specific constants.
| Substance | Description | Boiling Point (°C) |
|---|---|---|
| Acacetonitrile | Boiling point of Acacetonitrile | 81.6 |
| Acetaldehyde CH3CHO | Boiling point of Acetaldehyde | 20.8 |
| Acetic acid anhydride | (CH3COO)2O | 139 |
| Acetone CH3COCH3 | Boiling point of Acetone | 56.08 |
| Acetylene | Boiling point of Acetylene | -84 |
| Acrolein | Boiling point of Acrolein | 52.3 |
| Acrylonitrile | Boiling point of Acrylonitrile | 77.2 |
| Actinium | Boiling point of Actinium | 3198 |
| Alcohol - allyl | Boiling point of Alcohol - allyl | 97.2 |
| Alcohol - butyl-n | Boiling point of Alcohol - butyl-n | 117 |
| Alcohol - ethyl (ethanol) | C2H5OH | 79 |
| Alcohol - Isobutyl | Boiling point of Alcohol - Isobutyl | 107.8 |
| Alcohol - methyl (methanol) | CH3OH | 64.7 |
| Ammonia | Boiling point of Ammonia | -35.5 |
| Aniline | Boiling point of Aniline | 184.1 |
| Argon | Boiling point of Argon | -185.8 |
| Benzene | C6H6 | 80.4 |
| Bromine | Boiling point of Bromine | 58.8 |
| Butadiene | 1,2-Butadiene | 10.9 |
| Butane | n-Butane | -0.5 |
| Carbon Dioxide | CO2 (sublimates) | -78.5 |
| Carbon Tetrachloride | CCl4 | 76.7 |
| Chlorine | Boiling point of Chlorine | -34.4 |
| Chloroform | Trichloromethane | 61.2 |
| Cyclohexane | Boiling point of Cyclohexane | 80.7 |
| Ethane | C2H6 | -88 |
| Ether (Diethyl) | Boiling point of Ether | 34.6 |
| Ethylene Glycol | Antifreeze component | 197 |
| Formaldehyde | Boiling point of Formaldehyde | -19.1 |
| Gasoline | Boiling range | 38 - 204 |
| Glycerin | Boiling point of Glycerin | 290 |
| Helium | Boiling point of Helium | -269 |
| Hydrogen | Boiling point of Hydrogen | -253 |
| Hydrogen Sulfide | H2S | -60 |
| Iodine | Boiling point of Iodine | 184.3 |
| Mercury | Boiling point of Mercury | 356.9 |
| Methane | CH4 | -161.5 |
| Nitrogen | Boiling point of Nitrogen | -196 |
| Oxygen | Boiling point of Oxygen | -183 |
| Phenol | Carbolic acid | 182 |
| Propane | Boiling point of Propane | -42.04 |
| Sulfuric Acid | H2SO4 | 330 |
| Toluene | Boiling point of Toluene | 110.6 |
| Water | Pure H2O | 100 |
| Xenon | Boiling point of Xenon | -108.1 |
Note: For compounds not listed in the "Select" menu, use the Search bar to find the value and enter it into the "Custom Entry" field of the calculator.
Top 5 Most Popular Tools
1. Compressor Power
2. Pump Power
3. Pipe Pressure Drop
4. Fluid Velocity
5. Churchill Correlation
1. Compressor Power
2. Pump Power
3. Pipe Pressure Drop
4. Fluid Velocity
5. Churchill Correlation