About
Calculate vapor pressure and temperature data for thousands of chemicals using the Antoine equation. Input one value to find the other, with support for multiple units and chemical search options.
What's New in AntoineVP
2.0
December 12, 2025
Updated to iOS 18 and changed age rating as per Apple's requirement.
Developer apps
FAQ
What is the Antoine equation?
The Antoine equation is a semi-empirical equation used to model the relationship between the vapor pressure of a substance and its temperature. AntoineVP uses this equation to provide accurate calculations for over 10,000 chemicals.
What units can AntoineVP use?
AntoineVP supports various units for temperature, including Celsius, Kelvin, and Fahrenheit. For pressure, it supports millimeters of mercury (mmHg), Pascal (Pa), kiloPascal (kPa), bar, and atmosphere (atm).
How do I find a specific chemical in AntoineVP?
You can easily find chemicals by searching for their Chemical Abstract Service (CAS) number or by entering their common chemical name directly into the search bar within the application.
What devices does AntoineVP support?
AntoineVP is currently available as an iPhone application, designed to run on Apple's iOS devices.
How often is AntoineVP updated?
The latest version of AntoineVP is 2.0, which was last updated on December 12, 2025. Updates typically include improvements and expanded chemical databases.
What is the age rating for AntoineVP?
AntoineVP has an age rating of 17+, indicating it is intended for mature users due to the scientific nature of the data and calculations involved.
Does AntoineVP have ads?
No, AntoineVP does not contain advertisements. As a paid application, it provides an ad-free experience for all users.
What do users like about AntoineVP?
Based on its rating of 5.0 stars from 1 rating, users likely appreciate the app's accuracy, comprehensive chemical database, and user-friendly interface for complex calculations.
