From sodium phosphate are made sodii phosphas effervescens and sodii hypophosphis (see Phosphorus).
(4) Soda tartarata (Rochelle salt), a tartrate of sodium and potassium, from which is made pelvis sodae tartaratae effervescens, known as Seidlitz powder.
(5) Sodii citro-tartras effervescens, a mixture of sugar, sodium bicarbonate, citric and tartaric acids.
The preparations of lithium used in medicine are: Lithii Carbonis, dose 2 to 5 grs.; Lithii Citras, dose 5 to io grs.; and Lithii Citras effervescens, a mixture of citric acid, lithium citrate, tartaric acid and sodium bicarbonate, dose 60 to 120 grs.