282 VII. EARTHS AND ALKALIES.— 



White sal ammoniac. By adding oil of vitriol to bone 

 spirit, crystallizing the product, mixing it with common salt, and 

 subliming. In this process the residuum, by solution in water 

 and crystalHzation, yields Glauber's salt. 



2. By adding ground gypsum to bone spirit, straining, pour- 

 ing the liquor upon common salt, and subliming. 



S. By mixing the bittern of sea-water with putrid urine or bone 

 spirit: diuretic, stimulant, and tonic : used internally, in doses of 

 5 to 20 grains, frequently repeated against agues ; also added to 

 Peruvian bark to increase its febrifuge power ; externally stimu- 

 lant, 5J to water 3viij, as a lotion in gangrene, indolent tumours, 

 and chilblains. Used to give pungency to snufF, in dyeing to 

 brighten certain colours, and by other artists for various purposes. 



Flowers of sal ammoniac, Flores sails ammoniaci. Grey 

 sal ammoniac brpke into pieces, and sublimed either from an 

 earthen body into aludels, or from a wide-necked retort into a 

 large receiver : this mode of obtaining sal ammoniac in fine pow- 

 der was adopted on account of its toughness and the difficulty of 

 pounding it. 



Benzoate of ammonia. By saturating subcarbonate of 

 ammonia-water with benzoic acid ; in crystals. 



Succinate of ammonia. By saturating subcarbonate of 

 ammonia-water with succinic acid ; in cr^^stals. Both are used in 

 analyses to separate iron from manganese. 



Oxalate of ammonia. By saturating liquid oxalic acid with 

 ammonia -water, evaporating, and crystallizing. 



Oxalate of ammonia-water. By dissolving oxalate of ammonia 

 in ten times its weight of water. Used to ascertain the presence 

 of lime in waters. 



Sulphate of ammonia, Sal secretus Glauheri. By adding 

 dilute sulphuric acid either to sal ammoniac or ammoniacal liquor, 

 evaporating and crystallizing ; diuretic, aperitive. 



Spiritus Mindereri, Aqua ammonice acetates. Liquor ammo* 

 nice acetatis, Aq. acetatis ammonice. Subcarb. of ammonia 2 oz., 

 distilled vinegar q. s. (about lb. iij) as long as any effervescence 

 is produced, or rather more: diaphoretic 5ss; externally as a 

 collyrium in ophthalmia. 



Hydrosulphate of ammonia, Hydrosulphuret of ammonia^ 

 Ammonia hepatizata, Hydrosulpliureium ammonice, Ammonium 

 hydrosulphuratum. Pass the gas from artificial sulphuret of 

 iron 3iv, while dissolving in muriatic acid 3viij previously diluted 

 with 2t pints of water, into a bottle containing pure ammonia- 

 water 3iv. Dose git. V, gradually augmented : used in diabetes* 



