Dufraisse; Chaux Bulletin de la Societe Chimique de France, 1926 , vol. <4> 39, p. 905,912, 914 Full Text Show Details Wood; Comley Journal of the Society of Chemical Industry, London, 1923 , vol. 42, p. 342 T Chem. Zentralbl., 1924 , vol. 95, # I p. 418