Dumas_method_of_molecular_weight_determination
Dumas method of molecular weight determination
Physico-chemical characterization method based on the ideal gas equation
The Dumas method of molecular weight determination was historically a procedure used to determine the molecular weight of an unknown volatile substance.[1][2]
The method was designed by the French chemist Jean Baptiste André Dumas, after whom the procedure is now named. Dumas used the method to determine the vapour densities of elements (mercury, phosphorus, sulfur) and inorganic compounds.[3]
Today, modern methods such as mass spectrometry and elemental analysis are used to determine the molecular weight of a substance.