178 



101. SODIUM STANNATB. Na 2 Sn 3 , 3H 2 0. 



a. Crystals. 



102. SULPHATE. Na 2 S 4 , 10H 2 0. (Glauber's Salt, Sal Mirabile.) 



a. Native. 



b. Pure, in crystals. 



c. Ditto, effloresced. 



Note. For fig. of crystal, see Per. Mat. Med., vol. i., p. 579 ; Phillips, 

 Transl. Pharm., 1851, p. 365. 



103. SULPHITE. Na 2 S0 3 , 7H 2 O. 



a. Crystals. 



104. BISULPHITE. Na H S 3 . 



a. Crystals. 



105. SULPHOCARBOLATE. Na C 6 H 5 S 4 . (Sulphophenate of Sodium.) 



a. Crystals. 



106. SULPHOVINATE. Na C 2 H 5 S 4 . (Sulphoethylate of Sodium.'), 



a. Powder. 



107. TARTRATE. Na 2 C 4 H 4 6 , 2H 2 0. 



a. Crystals. 



108. BITARTRATE. Na H C 4 H 4 6 , H 2 0. (Acid Tartrate of Sodium.) 



a. Crystals. 



109. POTASSIO-TARTRATE. K Na C 4 F 4 6 , 4H 2 O. (Eoclielle Salt, 



Seignette Salt.) 



a. Crystals. 1st crystallization. 



b. Ditto. 2nd ditto. 



c. Ditto. 3rd ditto. 



d. Ditto. 4th ditto. 



Note. The majority of these crystals are only half crystals of the 

 typical form. Some tolerably perfect crystals will be found in the case 

 containing glass models of crystals (Case 9). For fig. of crystals, see Per. 

 Mat. Med., vol. i., p. 598; Phillips, Transl. Pharm., 1851, p. 364. The 

 above specimens a, b, illustrate the manufacture of Kochelle salt from 

 argol. 



110. TUNGSTATE. Na 2W 4 . 



a. Impure. 



b. Pure, in crystals. 



Note. These specimens consist of the normal salt. 



111. VALERIANATE. Na C K H Ov 



O J fi 



a. In white crystalline pieces. 



AMMONIUM. N H 4 . 



112. ACETATE. NH 4 C 2 H 3 2 . 



a. Crystals. 



