Chemical Bonding
jVisualizer is a graphical tool to visualize and analyse first-order coppling patterns found in NMR-spectroscopy; additional you can type in chemical shifts from an experiment to calculate coupling constants
Platforms: Windows, Mac, Linux
License: Freeware | Size: 167.77 KB | Download (57): jVisualizer Download |
Calculate the sonic velocity of a specified gas flowing in a pipe. Sonic velocity is also known as speed of sound. This is mainly the sound velocity of the internal substance in a pipe. This calculator is mainly targets process and chemical engineers whom may find it useful for quick check...
Platforms: Windows, Windows 8
License: Freeware | Size: 764.63 KB | Download (57): Gas Sonic Velocity Calculator Download |
The DynaFit application was developed to perform nonlinear least-squares regression of chemical kinetic, enzyme kinetic, or ligand-receptor binding data. The experimental data can be either initial reaction velocities in dependence on the concentration of varied species (e.g., inhibitor...
Platforms: Windows
License: Freeware | Size: 5.8 MB | Download (56): DynaFit Download |
Two tanks in are disposed in series. The level of tank 2 must be controlled despite a sine wave disturbance in the flow F3. This is achieved by changing the flow rate F0 of liquid to tank 1. The tanks areas are A1 and A2. Flow equations depends on constants K1 and K2. A proportional control with...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (56): Level control of two tanks in series Download |
The GUI application allows the user to enter the parameters of the Antoine equation and then plot vapour pressure of any chemical component versus temperature.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (55): Vapour Pression versus Temperature using Antoine Equation and GUI Download |
Listen to the UK’s only 90s radio station playing the best tracks of the decade whether it’s Oasis or Blur, Primal Scream or The Chemical Brothers. Enjoy the decade of Brit Pop, Trip Hop, Grunge and Indie by downloading Absolute Radio 90s now.
Whether you prefer Radiohead or Portishead, Guns...
Platforms: Mac
License: Freeware | Size: 409.6 KB | Download (55): Absolute Radio 90s Player Download |
Open Babel is a chemical toolbox designed to speak the many languages of chemical data. It's an open, collaborative project allowing anyone to search, convert, analyze, or store data from molecular modeling, chemistry, solid-state materials, biochemistry, or related areas. * Ready-to-use...
Platforms: Windows, Mac, *nix, C/C++, BSD
License: Freeware | Download (53): Open Babel Download |
FlatMol
a molecule drawing tool for the educator or student
Simple and flat, chemical structures made with this program are designed to be compatible with a paper surface rather than to compete with 3D models.
Tips:
Platforms: Mac
License: Shareware | Cost: $4.99 USD | Size: 5.2 MB | Download (53): FlatMol Download |
A pH Calculator, a Virtual Titrator, a Real Titration Data Analyzer, a Distribution Diagram Generator - that's CurTiPot, the all-in-one freeware to learn, teach and work with chemical equilibrium of acids, bases, salts and buffers at home, classroom, interactive "dry lab", routine or research...
Platforms: Windows
License: Freeware | Size: 784 KB | Download (52): CurTiPot Acid-Base pH and Titration Download |
This is a nonlinear system of differential and algebriac equations, that describe the dynamics of a continuous bioreactor. The bioreactor simulates the production of ethanol through yeast fermentation. The model is described in:Z. K. Nagy, Model Based Control of a Fermentation Bioreactor using...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Yeast Fermentation Bioreactor for Ethanol Production Download |
The programs compute the bifurcation diagram for the cubic map and a realistic population dynamics model. The value of parameter r, when the cycle of period three appears, is indicated. As expected, for higher values of r, we observe chaotic behaviour. Both models are given in the problems?...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Bifurcation Diagram for the cubic map and a realistic model for population dynamics Download |
We use a batch column with four theoretical plates to separate a binary mixture of water and methanol at 1 bar. Temperature and concentration profiles versus time are obtained for a reflux ratio equal to 10. In addition, the total moles in the still and distillate are plotted versus time. This...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Separation of a water-methanol mixture using a four stage batch distillation column Download |
CDL provides a generic C++ framework to write algorithms for the calculation of molecular descriptors. CDL provides efficient substructure search, fingerprints and pharmacophore algorithms, and many more for the calculation molecular descriptors.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 721.5 KB | Download (51): Chemical Descriptors Library (CDL) Download |
The two programs computes residue curve maps for the methyl acetate and isopropyl acetate chemistries at atmospheric pressure. These calculations involve solving a complex system of differential algebraic equations (DAEs). This can be readily achieved using the built-in function of MatLab,...
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (51): Residue Curve Map for Homogeneous Reactive Quaternary Mixtures Download |
gOpenMol is a tool for the visualization and analysis of molecular structures and their chemical properties. The program uses Tcl/Tk scripting engine and can thus be easily extended without modifying the kernel code. gOpenMol can also be extended by writing extensions using sharable objects...
Platforms: *nix
License: Freeware | Size: 28.24 MB | Download (51): gOpenMol Download |
The Chemical Structures Project is a set of 3D structures of molecules in CML format. Each file contains also some physical properties, which can be access using a web browser or a CML file reader.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 41.65 MB | Download (50): Chemical Structures Download |
ChemSpider Search is a useful Safari extension for viewing chemical structure images without leaving the current site.
Right-click on any compound name, drug name or chemical formula and choose "Search in ChemSpider" to see an image of the chemical structure. Then just click the "View" button to...
Platforms: Windows
License: Freeware | Download (50): ChemSpider Search Download |
DWSIM is a Chemical Process Simulator for Windows, Linux and Mac. Built for the Microsoft .NET 2.0 and Mono Platforms and featuring a rich Graphical User Interface (GUI), DWSIM allows chemical engineering students and chemical engineers to better understand the behavior of their chemical systems...
Platforms: *nix
License: Freeware | Size: 17.27 MB | Download (50): DWSIM Mono Edition Download |
AMBIT offers chemoinformatics functionality via REST web services and desktop applications. Chemical compounds and data storage in MySQL database; substructure, similarity and other queries, descriptor calculation and predictive models building.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 50 MB | Download (49): Ambit - chemical structures database Download |
ChemDigiT is a chemical calculator. No approximations made. All calculated variables show their exact values. The algorithm used for calculations is based on a full set of equations describing acid/base and salt dissociation equlibrium solved with Newton Raphson method. pH calculation...
Platforms: Windows
License: Freeware | Size: 2.36 MB | Download (49): ChemDigiT Download |