The reaction of urea and oxalic acid in aqueous solution is studied by the isomolar series method for density, viscosity, electrical conductivity, freezing-point depression of the solutions, and the apparent volume of the resulting ...

... oxalic acid through a piece of blad- der . I found that the filtrating power of rain- water , at the temperature of +21 cent . being denoted by 24 , the filtrating power of a watery solution of oxalic acid of no greater density than ...

... oxalic acid through a piece of blad- der . I found that the filtrating power of rain- water , at the temperature of + 21 cent . being denoted by 24 , the filtrating power of a watery solution of oxalic acid of no greater density than ...

One is towards larger and larger biological macromolecules and the other is towards the fine details of the electronic structure of small molecules. Both advances required the development of more sophisticated methodologies.