HSC Chemistry

Outotec's Chemical Reaction and Equilibrium Software HSC Chemistry is the world's favorite thermochemical software with a versatile flowsheet simulation module. HSC is designed for various kinds of chemical reactions and equilibria calculations as well as process simulation.


HSC software makes conventional thermodynamic calculations fast and easy to carry out with personal computers. Therefore HSC has a wide range of applications in scientific education, industry and research. Thermochemical calculations are useful, for example, when developing new chemical processes and improving old ones. HSC Chemistry is also a useful tool for universities and schools in chemical practicals and studies.

Traditionally, thermodynamic calculations based on experimental or assessed data have utilized stability functions in various thermodynamic data books and papers in scientific journals. The difficult searching stage and complicated calculations, as well as inconsistencies arising from different selections of standard and reference states, have made this calculation procedure quite time-consuming.

HSC Chemistry offers powerful calculation methods for studying the effects of different variables on the chemical system at equilibrium. For example, if the user gives the raw materials, amounts and other conditions of almost any chemical process, the program will give the amounts of the product as a result. HSC also makes heat and material balance calculations of different processes much more easily than any manual method. The Eh-pH-diagrams option also offers a very fast way of studying the dissolution and corrosion behavior of different materials.

Of course, HSC cannot solve all chemical problems, because it does not take into account the kinetics (rates) of the chemical reactions and non-ideality of solutions. However, in many cases it is a very inexpensive and useful tool which helps to find the optimal reaction conditions and yields for experimental investigations without expensive trial-and-error chemistry.

About the software

The name of the program is based on the feature that calculation modules automatically utilize the same extensive thermochemical database which contains enthalpy (H) , entropy (S) and heat capacity (C) data for more than 25 000 chemical compounds. This database is equivalent to more than twenty thick data books.

Outotec HSC 8 main meanu

The current HSC version 7.0 contains 22 calculation modules:

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

HSC contains also:

1. H, S and Cp Thermochemical Database 
2. Water Steam/Fluid Database
3. Heat Conduction Database
4. Heat Convection Database
5. Surface Radiation Database
6. Gas Radiation Calculator
7. Particle Radiation Calculator
8. Elements Database
9. Measure Units Database
10. Minerals Database with 3581 minerals
11. Aqueous Solution Density Database
12. The Pitzer parameter database

The price of HSC Chemistry does not include technical or chemical support or training due to limited support resources and the low price of the software. Free support may be available from hsc(at)outotec.com for example for installation.

Technical support

HSC users may also receive technical support for certain chemical issues. The price and delivery time of the support depends on the case. Please specify the following:

  • Chemical problem,
  • The chemical species and phases, 
  • The HSC module which you have used.

Outotec will send you a quotation on this basis.


HSC Training courses help you to get more out of your HSC software.

Public HSC training courses are available annually in different countries depending on demand and HSC user feedback. All participants must bring their own laptop. The latest HSC version with temporary license for 14 days will be installed in these laptops if needed.

On-Site HSC training courses may be arranged for companies and universities. These private courses make it easier to focus on such confidential issues and process examples that are important for your organization. Course content may focus on hydro, pyro, or mineral processing applications depending on your requirements and lecturer expertise.

We are grateful for all comments, feedback, chemical examples and bug reports (by email, fax, etc.) to hsc(at)outotec.com, because these will help the future development work of the software.

HSC on site training
HSC On-Site Training for Advanced Mineral Processing Applications

For public training courses available, check the HSC User Forum!

Operating system:

Windows 2000, XP, Vista or Windows 7 (32- and 64 bit)
Note: Excel Addins may not work within 64-bit Excel.
Note: HSC Cell module do not work on 64-bit Windows.

Disk space: about 500 MB


The system requirements for HSC are very typical of all Windows programs. Computers that are able to run the required operating system can run HSC Chemistry.

Hard disk and HSC-operation speed may be increased with Windows System tools (Scandskw.exe and Defrag.exe) and especially with Diskeeper®-software.

HSC installation

You can order HSC Chemistry 7 easily by email. Please select your choice from the below list. You may also order from your local reseller. See contact information from the List of Resellers.

We deliver your HSC package by courier service. The HSC manuals are available in the installation CD.  Printed HSC manuals are also available at the price of 90 euro.

The price of HSC is extremely low compared to many other simulation software packages, especially considering that HSC Chemistry contains 22 calculation modules and 12 databases, and also that there is no annual charge for the HSC license.

Type of licence User type Price and order form
Company license For commercial customers HSC7 order form for companies
 Academic license For universities and schools HSC7 order form for universities
Company/University Site license Entitles licensee to install HSC to all the computers within the same Company, Site, University or Department. However, the activation is available up to the given number of computers. This number may easily be increased later on, if necessary. Company/University Licensee may run HSC 14 days without activation. A "Site" is defined as the physical address (single location) of the licensee. HSC7 order form

Payment and Wire Transfer Information

You may pay by credit card, cheque or using wire transfer. An invoice or receipt of your payment will be sent together with the software package.

Terms of payment 30 days NET

Please pay to:

Outotec (Finland) Oy, VAT FI15386292
Bank: Nordea Bank Finland Plc
Account: 157130-16999
IBAN: FI82 1571 3000 0169 99

Outotec (Finland) Oy
Information Center
P.O. Box 69
FIN - 28101 PORI
Fax: +358 - 20 - 529 211
Tel: +358 - 20 - 529 3203
E-mail: hsc(at)outotec.com

COPYRIGHT HSC Chemistry and all documentation are copyright protected with all rights reserved by Outotec (Finland) Oy. All parts of this software are licensed only to the legal end-user, the registered licensee, and can be used for his/her own internal use. Outotec makes no warranties, express or implied, in this User's Guide or in other parts of HSC Chemistry. Defective HSC CDs will, however, be replaced. See HSC Licence Agreement for the details.


Licence Agreement for End User of HSC Chemistry®.

By opening the sealed software packages the Licensee agrees to be bound by the terms of this Agreement. By returning the software packages unopened together with accompanying items to Outotec (Finland) Oy, Pori the Licensee refuses to accept the terms of this Agreement and will receive a full refund of the purchase price paid by the Licensor for HSC Chemistry, excluding shipping.

The Licence

The Licensor grants the Licensee a non-exclusive license to use a copy of HSC Chemistry 7 (hereinafter referred to as “HSC Chemistry”) on the number of computers granted by this license. The number of terminals that have access to HSC Chemistry in a network, simultaneously or at different times, must be limited to the same number. The computers which have access to HSC Chemistry must be fixed, i.e. the HSC license is NOT a floating license. A non-exclusive license is also granted with the enclosed printed documentation.   The Licensee is not permitted to install HSC on a larger number of computers than specified in this license. However, a separate "Company/University License" is available for a different fee. This license entitles the licensee to install HSC on all the computers within the same Company, Site, University, or Department. Activation is available up to the given number of computers. This number may easily be increased later on, if required. A Company/University Licensee may run HSC for 14 days without activation. A "Site" is defined as the physical address (single location) of the licensee.   The Licensee shall use HSC Chemistry for internal business or research purposes only. The Licensee shall not permit any third party to use the licensed materials. However, the Licensee may distribute the calculation results and applications created using the licensed materials to third parties.  


The Licensee is only allowed to make one backup copy of the original HSC Chemistry CD for archival and security purposes. All other copying of the licensed material, partly or in its entirety, is forbidden unless prior written consent is given by the Licensor. For your convenience, HSC Chemistry is not copy-protected, but registration is required. However, all parts of this software are licensed only to you, the registered licensee, and may be used for your own internal use.

Registration and Activation

Registration will ensure that the Licensee receives information on any updates as soon as they become available. Registration is needed after installation. Registration can be made using the HSC Registration/Activation dialog and sending this information by email or fax to the Licensor.

Use of HSC Chemistry Modules and Databases Separately

The Licensee may use separate parts of HSC Chemistry (calculation module, database, etc.) alone in different computers or terminals. However, the Licensee must have an HSC Chemistry license for each of such computers or terminals that have any programs or databases taken from HSC Chemistry.

Transfer of the License

The Licensee may transfer this License to a third party only if written approval of the terms of this License, signed by duly authorized representatives of the third party, is delivered in advance to the Licensor. On transfer of the License all rights of the Licensee based on this Agreement cease.

HSC Upgrades

The HSC upgrade replaces the old HSC license. The Licensee may use the old HSC version only on the same computer or terminal where the new HSC is located. It is not permitted to install the old HSC license onto another computer.


The Licensor warrants to the Licensee that the HSC CD will be free from defects in material under normal use. The Licensor will replace a defective CD if requested by the Licensee within a period of thirty (30) days from delivery. This warranty is in lieu of all other warranties, express or implied, which might otherwise arise with respect to HSC Chemistry. This warranty applies to the CD only and does not cover the software programs or database which are included with HSC Chemistry. All such software programs, database and application examples are provided “as is” and without warranty of any kind. The HSC Chemistry results have been compared with manual calculations and with other calculation programs, all giving similar results. However, the Licensor does not guarantee the performance of the program or results that may be obtained by using HSC Chemistry. Despite careful preparation, the program, HSC database and original data may contain errors and “bugs.” Sometimes, HSC data extrapolation to higher temperatures can also lead to significant errors. The Licensee shall inform the Licensor of any bugs and errors discovered.


Notwithstanding anything else contained in this Agreement, the Licensor shall not be liable to the Licensee for loss of profits or contracts or other indirect or consequential loss or damage arising from whatever reason. Under no circumstances shall the Licensor be liable for any damages in excess of the purchase price. The Licensor does not take responsibility for incorrect usage of HSC Chemistry.

Technical Support

The price of HSC Chemistry does not include technical or chemical support or consulting due to limited support resources and the low price of the software. Support may be given for certain technical problems with the software (for example, installation). However, the Licensor would be very grateful for all comments, feedback, and bug reports (email, faxes, etc), because these will help the future development work of the software.

Applicable Law and Arbitration

This Agreement shall be governed by and construed in accordance with Finnish Law. Disputes arising from this Agreement are to be settled in arbitration by a sole arbitrator. The arbitrator shall be appointed by the Board of Arbitration of the Central Chamber of Commerce of Finland and the rules of the said board are to be observed in the arbitration procedure.


The copyright and other intellectual property rights of whatever nature in HSC Chemistry and this documentation are and shall remain the property of the Licensor. MS Windows & MS Excel are registered trademarks of Microsoft Corporation, Lotus 123 is a registered trademark of Lotus Development Corporation, IBM PC & XT & AT & PS/2 are registered trademarks of International Business Machines Corporation. Actuate® Formula One®, Copyright © 1993-2001 Actuate Corporation, All Rights Reserved. HSC Chemistry®: Copyright 1974, 1981, 1987, 1988, 1989, 1992, 1993, 1994, 1997, 1999, 2002, 2006, 2007, 2009 Outotec (Finland) Oy, All Rights Reserved.


Aquion Pty Ltd. www.aquion.com.au/ 

LabAssist Pty Ltd
Phone: +612 9944 0608, Email: peter@labassist.com.au


Metalquim Limitada http://www.metalquim.cl/


Outotec (Finland) Oy http://www.outotec.com/hsc


ChemCAD http://www.chemcad.fr/


Digital Data Management Corporation http://www.ddmcorp.com/


SoftBooks http://www.softbooks.com.pl/


Achema Pte Ltd http://achema.sg/

South Africa

Chempute Software cc http://www.chempute.com/

United States

ChemSW, Inc. http://www.chemsw.com/


Chemistry Software Ltd http://www.chemistry-software.com/

HSC Chemistry has been applied by users to an extremely wide range of problems.

HSC licence holders by country

HSC Chemistry Literature References

The databases are extremely important parts of the HSC software. They make it possible to carry out many types of thermochemical, heat transfer and simulation calculations easily. The HSC 7 contains 12 databases. The largest and most important one is the H, S and Cp database with more than 25 000 species. However, the other databases may also contain vital information depending on your application.

Browse the pages on the left hand side menu to get more detailed information of the HSC database family.

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.

 HSC calculation module

Please fill up this Registration Form in order to ensure your entry on the HSC Chemistry Licensee Register. In this way you will automatically receive information on HSC upgrades.

Read more

HSC brochure

HSC user forum

What's new in HSC?

What's New in HSC7?
What's New in HSC7.1?
What's New in HSC8?

Contact information


Outotec (Finland) Oy
Information Center
P.O. Box 69
FIN - 28101 PORI
Fax: +358 - 20 - 529 211
Tel: +358 - 20 - 529 3203