Chem-casts provides reliable thermophysical data, pure component properties, and engineering calculators for students and professionals. Access vapor pressure, density, Cp, viscosity, temperature-dependent profiles, pressure-dependent profiles, unit converters, mixture tools, articles, and flashcards. The platform is growing into a complete engineering hub with tools for fluid mechanics, heat transfer, materials, HVAC, and mechanical engineering calculations.
Pure Component Thermophysical Properties
Explore accurate thermodynamic and physical properties for thousands of pure components. View critical properties, molecular data, and parameter sets used in engineering calculations.
Property Types Available:
Interactive Property Profiles
Generate temperature-dependent and pressure-dependent profiles for thermodynamic properties with automatically generated plots and data tables.
- Vapor pressure vs temperature
- Density vs temperature
- Cp vs temperature
- Enthalpy vs temperature
- Saturation properties vs pressure
- Viscosity vs temperature
Engineering Tools
Interactive calculators for common chemical engineering tasks.
Mixture Thermodynamic Property Calculator – Instant Thermo Properties for Any Blend
Calculate key thermodynamic properties of mixtures instantly — including density, viscosity, specific heat, thermal conductivity, and more. Accurate results for process design, simulation, chemical engineering, and research.
Constant Pressure Property Profile Calculator
Calculate thermophysical property profiles at constant pressure over temperature. Ideal for heaters, reactors, and heat exchanger studies.
Constant Temperature Property Profile Calculator
Generate thermophysical property profiles at constant temperature over pressure. Useful for compressors, columns, and phase behavior studies.
Pure Component Property Calculator — Density, Cp, Viscosity & More
Enter a chemical name or ID, choose temperature and pressure, and instantly calculate thermophysical properties using a Python thermo library.
Test Your Knowledge
Flip through our flashcards to master key concepts, one card at a time.
Shell and Tube Heat Exchangers
Core principles of shell and tube heat exchanger design, including fluid allocation, TEMA types, fouling, and performance optimization for industrial applications
Separators and Piping Systems
Design rules for separators, pumps, piping, and instrumentation, focusing on flow stability, erosion prevention, and accurate measurement.
Pressure Vessels and Codes
ASME codes, testing protocols, and design rules for pressure vessels, including MAWP, PWHT, and steam-out cases.
Process Safety Analysis-HAZOP LOPA
Techniques for hazard identification and risk mitigation, including HAZOP, LOPA, and overpressure scenarios in process engineering.
From the Knowledge Base
Your cheatsheet for the core principles. Quick guides and fundamentals in chemical engineering.
Latest Articles
What's inside: In-depth analysis and case studies to keep you ahead of the curve.
Why Engineers Use Chem-casts
A comprehensive and reliable resource for professionals and students.
15,000+ Components
Access extensive pure component property data.
Dynamic Profiles
Generate interactive property vs. T/P plots.
Accurate Calculations
Relies on scientific property calculation methods.
Fast Calculators
Quick and easy-to-use tools for daily tasks.
Clean Reference Data
Organized and clean presentation of technical data.
Helpful Articles
In-depth articles and guides for continuous learning.
Flashcards for Revision
Interactive flashcards to help you study and revise.
Free and Open
Accessible to everyone, fostering a learning community.