School of EPS: Current Staff & Students

EPS Current Students and Staff

CHN Calculator with Solvent Correction

Heriot-Watt University
EPS - Chemistry

Solvent Correction CHN calculator
Version 1.30
Copyright ©2000 Gareth Evans

The purpose of this calculator is to determine possible solvent content in a sample that has been submitted for analysis that falls outside the acceptable error of +/-0.3%. The calculator will only work if a single solvent or impurity is present in your sample.


DO NOT ALTER THE INFORMATION BELOW UNLESS YOU HAVE SELECTED 'OTHER' AS YOUR SOLVENT/IMPURITY
Please select solvent -
Copyright © 2000
Gareth Evans
Name of Solvent / Impurity
No. Carbons per mole No. Hydrogens per mole No. Nitrogens per mole Total Mass of solvent/impurity (g/mol)


Enter the maximum number of moles of solvent/impurity per mole of compound suspected (use as small a value as possible to start with, and increase if no matches are found) -

Enter the formula of the compound you have (without solvent)
C
H
N




      
Theoretical
%C %H %N
F.W. =

Enter the values you have obtained from your CHN analysis - NOT the theoretical value
%C found %H found %N found

Enter the error margin that you would like to calculate for (+/- 0.3% is acceptable error) -

Select how much the calculator should increase possible solvent/impurity amount by between each calculation (The smaller the amount, the more positive matches you will find, but the calculator will slow down considerably as a result).

 


%CHN Solvent Calculator Instructions

Link to Heriot-Watt Elemental Analysis Home Page


Please contact  Dr Brian Hutton   for further information.