HSC Chemistry 7 contains 22 calculation modules which are connected to 12 databases as appropriate. Most calculation modules operate like independent programs which may have data links with each others. All the calculation modules have their own user interface and manual. Quite often HSC users use only a few (1 - 2) of the calculation modules. In this case they do not need to read all the manuals but only the necessary ones.

1. Sim – Process simulation
2. Reactions Equations
3. Heat and Material Balances
4. Heat Loss Calculator
5. Equilibrium Calculations
6. Electrochemical Cell Equilibriums
7. Eh-pH Diagrams – Pourbaix
8. H, S, C and Ellingham Diagrams
9. Tpp Diagrams – Stability diagrams
10. Lpp Diagrams – Stability diagrams
11. Water – Steam tables, etc.
12. H, S, Cp Estimates
13. Conversions – Species to elements
14. Mineralogy Iterations
15. Periodic Chart – Elements
16. Measure Units
17. HSC AddIn Functions
18. Data – Statistical analysis
19. Geo – Mineralogical calculations
20. Map – GPS material stock
21. Fit – Numerical Data fit
22. Aqua