Vanadametry

Summary We have found that sodium vanadate oxidises hydroxylamine quantitatively and rapidly to nitrous oxide, even at the room temperature, if the reaction is carried out in 5–6 N hydrochloric acid medium using copper sulphate as catalyst.One of the authors, K.Bhaskara Rao, desires to thank the Ministry of Education, Government of India, for the award of a ResearchScholarship, and the authorities of the Andhra University for providing the research facilities.See also Z. analyt. Chem.156, 180 (1957).