HSC Chemistry®
Overview of HSC Chemistry® 6.1. For details about what's new in HSC Chemistry® 7 click here. 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 20 000 chemical compounds. This database is equivalent to more than twenty thick data books. HSC contains also other databases. The HSC 6.1 contains 21 calculation modules and 11 databases. The name of the program is based on the fact that calculation modules automatically utilize the same extensive thermochemical database which contains enthalpy (H), entropy (S) and heat capacity (Cp) data for more than 20 000 chemical compounds. This database is equivalent to more than twenty thick data books. Chemistry is the Heart of the Process: Chemical or biological processes, power plants, airplanes, vegetables and the human body will not work if the chemistry does not work Thermodynamic calculations may be used to estimate the course of chemical processes Even the finest fluid dynamic models (CFD) are totally useless, unless the process thermodynamics are under control. The objective of HSC is to make conventional thermodynamic calculations fast and easy to carry out using 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. Computations are completely menu-driven, with on-line help immediately available by pressing the Help button. The help dialog provides brief instructions, examples, and theoretical considerations to aid in the interpretation of results, which are presented as tables, pictures and diagrams. As an HSC user, you can test an idea easily on the computer, before getting involved in any expensive and timeconsuming laboratory or industrial-scale experiments. The results of HSC will show, for example, the effect of temperature or raw material amount on the compositions of products and by-products. HSC Chemistry helps to avoid expensive trial-and-error chemistry, allowing the chemist or engineer to set up optimal reaction conditions for his experimental investigations. The payback time for the HSC is extremely short, as even one needless laboratory experiment can cost more than a whole HSC package. HSC Chemistry software enables the user to simulate chemical reactions and processes on a thermochemical basis. This method does not take into account all the necessary factors, such as rates of reactions, heat and mass transfer issues, etc. However, in many cases a pure thermochemical approach may easily give useful and versatile information for developing new chemical processes and improving existing ones. Perfect simulation for all processes means that any chemical process can be designed completely on computer without any experimental work. This goal is, however, far in the future, because there is no complete general theory or basic data available which would successfully combine thermodynamics, non-ideality of solutions as well as dynamics (kinetics) for all processes. Nearly perfect simulation may be achieved for a single individual process step by measuring experimentally all the necessary parameters for solution models, kinetic models, as well as for flow and heat transfer models. However, this needs several months or years of work to be able to simulate one single process step. Quite often a fast mainframe computer is needed. With HSC Chemistry it is possible to calculate chemical equilibria between pure substances and the ideal and also, to some extent, non-ideal solutions. For these calculations only enthalpy (H), entropy (S) and heat capacity (Cp) data for all prevailing compounds or pure substances is needed. In many cases these calculation results may simulate the real chemical reactions and processes at sufficient accuracy for practical applications. An important advantage is also that specification of the chemical system, data retrieval and final calculations may be carried out on normal Intel Pentium personal computers within a few minutes. Of course, experimental work is needed to verify the results, because HSC does not take kinetic phenomena into account. However, HSC helps to avoid expensive trial-and-error chemistry, because it quickly and easily gives some kind indication of the effects of process parameters on the reaction products and process conditions. Usually, thermochemical calculations at least show what is physically possible and what is impossible, which is highly valuable information when making plans for experimental investigations.
Chemistry is the Heart of the Process:
System Requirements for HSC 6.1
System Requirements for HSC 7
$ 1,083.75
$ 1,457.75
The price of HSC is extremely low compared to many other simulation software packages, especially considering that HSC Chemistry contains 21/22 calculation modules and 11/12 databases, and also that there is no annual charge for the HSC license.
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