S. D. Hayes on a New Lead-Sailt. 227 
Prismatic crystals; nitrate of potash oryetallices at the same - 
time, and if the NO* has been passed through the lead oxyd 
mixture too long, nitrate of lead is formed. 
The yellow salt was easily separated and recrystallized. The 
were determined as sulphates, with the following results: _ 
I. 07462 grms. pure salt gave 0:4200 grms. sulphate of lead, 
and 0:0097 grms. lead =0'3195 grms. oxyd of lead, and 0°2472 
gms. sulphate of potash =0°1335 grms. potash. : 
I. “459 erms. ae 0°6387 rake oxyd of lead, and 02593 
h 
ee the -- oxyd, being used in the combustion tube with a 
€ Ox 
re small apparatus, then transferred to the eudiometer, where 
it Was measured. i 
By 01926 grms. salt gave 45°6277 cubic centimeters, nitrogen, 
oo perature 60° C.; pressure 277-5 millimetres =16°30¢. c., at 
6. and 760 mm. pressure =0°2048 grms. 
* Ann. Ch. und Pharm., xcvi, 228 
} 
