24 P. T. CLEVE, 



Analysis: material dried at 100°. 



0,3040 gr. gave 0,1830 gr. metallic platinum and O,23oo gr. sulphate of barium 

 = 0,0316 gr. sulphur. 



The formula requires: 



Calculated Found 



Platinum 197,88 59, ost 59,87 



Sulphur 32,oo 9,70 10,39 



Nitrogen 28,oo 



Hydrogen ,- 8,oo 



Oxygen 64,oo 



329,88 



14. Chlorosulphite R { o.so.o.h ^ s obtained by the action of sulphurous acid 

 on the boiling solution of the chloride. The eolourless solution yields the compound 

 by evaporation and crystallisation in the form of white balls composed of small need- 

 les. The chlorosulphite is easily soluble in vvater without decomposition. With nitro- 

 muratic acid it yields yellow prisms (probably a chloro-sulphate of platinammine) and 

 bright yellow octahedral crystals (the chloride of platinammine). 



Analysis: the chlorosulphite dried at 100°. 



a. 0,3020 gr. gave 0,2050 gr. metallic platinum. 



b. 0,5180 gr. gave 0,3coo gr. sulphate of barium = 0,0494 gr. sulphur. 



c. 0,4'.30 gr. gave 0,?'»7o gr. platinum and 0,1780 gr. chloride of silver —0,0440 gr. 

 chlorine. 



The formula requires: 



Calculated. Found. 



a b- c 



Platinum 197,88 — 56,.so 56,63 55,76 



Sulphur 32,oo — 9,18 — 9,46 



Chlorine 35,46 — 10,18 — 9,93 



Nitrogen 28,00 



Hydrogen 7,00 



Oxygen 48,oo 



348,34 



i Cl 



15. Chlorosulphite of ammonium R| S() NH fH0 By the action of the sul- 



phite of ammonia on the chloride of platosamminc Mr Peyrone ') obtained a com- 

 pound, crystallising in eolourless rhombical scales, for which he gives the equivalent- 

 formula Pt N 2 H 7 3 2 SO» + Pt NH :1 Cl + 2 HO, which probably by a misprint contains 

 one equiv. of oxygen too much. It seems most likcly that the atomic formula of 

 this compounds is the one written above. I did not prepare this compound. 



) Peyrone Ami. Ch. u. Pharm. 61 1847 p. L80. 



