Abstract
IN continuation of an investigation of thiosulphato-cobalt complexes,1 it has been found possible to isolate two very interesting isomeric modifications of thiosulphato-penta-cyano cobaltic acid H4 [(CN)5.Co.S2O3]; the difference between which lies in the constitution of the thiosulphate radical. The two acids differ in their chemical behaviour and form two corresponding series of crystalline isomeric salts. Both the complex acids hydrolyse in warm water, liberating two different varieties of free thiosulphuric acid. One of the latter decomposes as usual into sulphur dioxide and sulphur, whereas the other gives rise to sulphuretted hydrogen and sulphuric acid. This furnishes a positive and direct evidence of the existence of two isomeric forms of thiosulphuric acid, and has indeed led to their isolation in solution. The two different ways in which the constitution of thiosulphuric acid has been represented in many text-books correspond, therefore, in reality to these two isomeric forms. In fact, Piccard and Thomas2 obtained an indication of the synthesis of thiosulphuric acid from sulphur trioxide and hydrogen sulphide.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
