Phosphate of Soda. — Sulphate of Soda, &c. gS 



solute purity. It consists in pouring upon ortfe ^aft et 

 Prussian blue half a part of sulphuric acid, diluted with atti 

 equal quanlity of tt/o/t-r, and subsequent distillation. Th« 

 prussic at)d passes over in the alcohol--'. Its odour greatly 

 reseinble^i tne water of the Lauro-cerasus. It is a deadly 

 poison lo animals. 



PHOSPHATE OF SODA. 



M. Funcke, a German apothecary, gives the following* 

 as a more ceconomical, expeditious,' and easy process for 

 preparing this substance than any in common use: 



Saturate the excess of lime contained in calcined boneft 

 with dilute sulphuric acid, and dissolve the remaining phos- 

 phate of lime in nitric acid. To this solution add^a like- 

 quantity of sulphate of soda, and then recover the nitric 

 acid by distillation. 71ic phosphate of soda is then to be 

 separated from the sulphate of lime by affusion with water 

 and crystallization in the usual manner. 



SULPHATE OF SODA. 



The same chemist has published a new method of pre- 

 paring sulphate of soda from sulphate of lime. It consists 

 m n;aking into a paste, with a sufficient quantitv of water, 

 eight parts of burnt gypsum (sulpliate of lime), five of clay, 

 and five of common salt. This mixture is burnt in a kilu 

 or oven, and then ground to powder, ditlused in a sufficient 

 quantity of water, which, alter being strained and eva- 

 porated, is suffered to ciystallizc. 



POTASH. 



The ashes of vegetables in general contain only froru 

 18 to 20 per cent.; those of buck-v\ heat, accoruma; to 

 some experuuents of Vauquclm, about 33 of liiis alkali. 



GALVANISM. 



Profossor Tromsdorff has announced that metals may be 

 deflagrated by means of the Galvanic fluid, in hydrogen, 

 anmiouia, nitrogen, nitrous and carbonic acid gases. 



TITANIUM. 



Prolcssor Lampadius has succeeded in reducing to the. 

 nietallic state, by means of charcoal only, tlie oxide of 



• We have copied this from Mr. Nicholson's valuable Journal, but 

 there IS sonic inaccuracy in it. If water only was cmpiovcci there could 

 bi: no alcohol ptoducid; if the iatar was enip'.oycd in 'piace of water 

 then cither itii^ht pass into the receiver. 



titanium 



