244 VI. METALS.— Sub-salts. 



QUICKSTLVER. 



Mineral turbith, Queens yellow ^ Turpethum yninerale, 

 Mercurius emeticus jiavus, Hydrargyrus vitriolatus, Oxidum hy- 

 drargyri sulphuricum, Suhsulphas hydrargyri Jlavus. Corrode 

 quicksilver by boiling it in about an equal weight of oil of vitriol 

 to dryness; the white mass'Js then flung into a large quantity of 

 boiling water, it immediately changes to a yellow powder, to be 

 well washed and dried ; emetic in doses of gr. ij — viij ; useful in 

 inveterate gonorrhoea; as a preservative against hydrophobia; 

 alterative, gr. j — ij, in leprosy and obstinate glandular obstruc- 

 tions ; as an errhine, diffused among other powders ; and a fine 

 yellow pigment. Contains 27 peroxide of quik and 5 sulph. 

 acid ; equiv. S2, 



Sweet sublimate, Calomel Protochloride of mercury^ Mercurius 

 dulcis suhlimatus, Calomelas, Hydrargyri submurias, Murias pro- 

 toxydi hydrargyria Submurias hydrargyri suhlimatum. Grind 40lb. 

 of corrosive sublimate with 301b. of quicksilver, sublime the grey 

 powder; powder and wash the sublimate with boiling water. 

 Sold for calomel and panacea mercurialis. 



Calomel, Mercurius dulcis sexies sublimatus^ Calomelas. Re- 

 peat the sublimation six times. 



Panacea mercurialis. Repeat the sublimation nine times, 

 that the Mercurius dulcis may be rendered still milder. 



Sweet precipitate, Protochloride of mercury, Mercurius 

 didcis prcBcijntatus, Hydrargyrus muriatus mitis, Submurias hy^ 

 drargyri prcecipitatum, S. hydrargyri proicipitatus. Dissolve 

 quicksilver in nitric acid by boiling, observing to have more 

 quicksilver than the acid will take up, pour off the solution into 

 a boiling brine, composed of common salt equal to half the weight 

 of the quicksilver, dissolved in water in the proportion of about 

 half an oz. of salt to a pint : the precipitate thus produced is io 

 be well washed and dried. 



Flowers of calomel. Distil calomel in a low retort, having 

 a very short and wide neck, so disposed in the furnace that the 

 neck of the retort, being too hot for the calomel to settle there, it 

 may be driven over into a large receiver half filled with hot water, 

 and kept so as to steam : the sublimate is in the form of a fine 

 white powder. — Dose, as alteratives, gr. j — ij nocte maneque ; if 

 they do not pass through the bowels, they aflect the mouth, which 

 may be avoided by joining purgatives with them ; as cathartics, 

 gr. V to viij or x ; but calomel was formerly, and still by some 

 persons, given in doses of 3J ; contains quik 25, with chlorine 4*5; 

 equiv. 29*5. ■ 



