fti!STOKATIVE AGBKTS. 35 



Acidum Phosphoricum Dilutum, strengtli ^. H., 

 fl. 3 i.-ij. ; D., t\\, x.-xx. 



These dilute acids should be given well diluted. 



Sulphuric Acid, acidum sulphuricum, oil of vitriol 

 — HjSO^ — is produced by the burning of sulphur and 

 the oxidation and hydration of the resulting sulphur- 

 ous acid gas by means of nitrous and aqueous vapors. 

 It is a thick, oily-looking, colorless, odorless liquid, of 

 an intensely acid taste and strong acid reaction. 

 Specific gravity, 1.843. It absorbs moisture from 

 the air, and when mixed with water it evolves 

 heat. 



Muriatic Acid, acidum hydrochloricum, spirit of 

 salt — HCl. A clear, colorless, intensely sour liquid, 

 having a strong acid reaction, and specific gravity 

 1.16. It emits white, pungent fumes of the gas 

 which forms about thirty-two per cent, by weight 

 of the solution. Obtained mostly as a by-product in 

 the manufacture of sodium carbonate from common 

 salt. 



Nitric Acid, acidum nitricum, aqua fortis, HNO,. 

 A clear, colorless, corrosive, Intensely sour liquid, 

 which emits pungent, suffocating, nitrous fumes, 

 and oxidizes, corrodes, and dissolves most organic 

 substances. It has great affinity for water and 

 evolves heat when mixed with this. Nitric acid 

 is prepared from sodium or potassium nitrate, sul- 

 phuric acid, and water. It contains about sev- 

 enty per cent, of true nitric acid, and has the specific 

 gravity 1.42. 



Nitro- Hydrochloric Acid, acidum nitromuriaticum, 



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