Try to google the stuff with the name of the software followed by the keyword ‘free download’ and click the search button. Find the related site of the software and click the download link. Follow the instruction to install it on your PC. Enjoy searching!! Hunting softwares itself is a fun thing.

The Chemical Kinetics Simulator (CKS) provides a rapid, interactive method to simulate chemical reaction mechanisms. It only requires basic information: the reaction mechanism and kinetics, initial concentrations, reactions conditions and several simulator setup parameters. Once a simulation is complete, you may select the types of data plots to display. The choices are concentration, temperature, pressure, and volume vs time or concentration, pressure, and volume vs temperature. (Freeware)

ChemEng Economics Calculator was mainly created to do the basic estimation of the Net Present Value of a chemical plant. This easy-to-use software also includes calculators such as estimation of total plant cost – overall basis, exponential estimation, updating estimates, and estimating total plant cost from individual cost sections. (Demo)

Est$Pro was developed to serve a specific purpose, rapid conceptual cost estimating of process plants and equipment. It will estimate process equipment prices and also estimate the cost of purchasing and installing bulk materials that user defines. (Demo)

Basic Acid Titration and Equilibria – BATE is a program for pH calculations in mixtures of acids and bases, weak and strong, with or without ionic strength. BATE is able to calculate pH of any mixture of acid and base faster then you will be copying the results from the screen. Whether you need to prepare a solution, or examples for lecture, or you want to check your homework – BATE is as handy as possible (Demo)

ACDLabs 10.0 contains of three programs i.e ChemsSketch, 3D viewer, and ChemBasic. ACD/ChemSketch is the powerful all-purpose chemical drawing and graphics package from ACD/Labs developed to help chemists quickly and easily draw molecules, reactions, and schematic diagrams, calculate chemical properties, and design professional reports and presentations. ACD/3D Viewer is a fast yet accurate 3D modeling and visualization program. It is fully integrated with ACD/ChemSketch, allowing you to draw 2D structures and quickly obtain their 3D representations in a striking 16 color display. ChemBasic is a simple, convenient and functionally rich programming language for the presentation and manipulation of molecular structure, related objects and all the content of ACD/Labs’ current and future programs. ChemBasic is founded on, and fully integrated with, ACD/Labs existing functionality. At the same time, ChemBasic has all the things a programming language should have: numeric and string variables, arrays, flow control and conditional operators, input/output procedures, etc. (Freeware for educational purpose only)

ChemLab comes with a range of pre-designed lab experiments for general chemistry at the high school and college level. Users can expand upon the original lab set using ChemLab’s LabWizard development tools, thus allowing for curriculum specific lab simulation development by educators. These user designed simulations combine both text based instructions and the simulation into a single distributable file. (Shareware)

Discounted Cash Flow Analysis Calculator is a capital budgeting and investment analysis tools which simultaneously evaluates 14 cash flow series comparing 5 different discount rates (or costs of capital) per series. For each series (or capital budgeting project) Discounted Cash Flow Analysis Calculator provides the following results: Initial Investment, Smallest Cash Flow, Largest Cash Flow, Cash Flow Range, Average Cash Flow, Number of Cash Flows, Undiscounted Sum of Cash Flows, Internal Rate of Return (IRR) and Undiscounted Payback Period. (Demo)

PackCol performs hydraulic design for new packed columns or rating calculations for existing columns and towers. The design basis can be approach to flood, maximum capacity or pressure drop. Includes a database of packing types, but custom data can be used. The Eckert and Robbins correlations are included to cover the full flow rate range. Results can be printed in tabular form, and plotted as a Generalised Pressure Drop Correlation diagram or as an Operating Diagram. Detailed manual and tutorial included in Word v6 format. (Demo)

Enjoy the software. Remember, piracy is a crime. Never try to find cracks to illegally get the fully functional version of the software. If you find the software helpful, consider buying the license. If you cannot afford it, please use sharewares and freewares only. We all agree on using inexpensive ways to be smart, but it has to be legal, as well.