106 *^N LARD, AND COMPOUNDS MADE WITH IT. 



bion on a water bath a portion of the lard was separated, 



and poured off; and by straining the rest through tine linen 



the greater part was obtained. It was of a gray colour, aud 



a very strong, acrid, bitter taste ; stood more readily on 



cooling; and blackened silver. If sulphuretted lard be 



boiled, decanted, and cooled quickly, part of the sulphur 



precipitates: but if it be cooled slowly it crystallizes in line 



needles. 



This com- If this mixture be distilled in a coated glass retort, to 



pound ^^*^j^^^_ which a receiver is adapted communicating with a mercurial 



etted and car- trough, a large quantity of gas is obtained, which appears 



buretted hidro- 1.^ |jg j^ mixture of a £>reat deal of sulphuretted hidroj>en, 



gen&carbcmc . , ,., , ,. , , • i ivx 



^cid: some carburetted nidrogen, and a little carbonic acid. ISo 



sulphurous acid gas was found, as many chemists assert. 



lard mixed As soon as the gusses cease to come over, thick, white va- 



w.th sulphur pours rise, that condense with difficulty, and a yellow mat- 

 subhmesj * . . - , "... 



ter sublimes into the neck of the retort, which is lard mixed 



with a litiie sulphur. The liquor in the receiver is milky, 



and on cooling ailbrds small crystals in white scales, which 



a bulky coal are Bulphur in a state of extreme division. A very bulky, 



remains i^hining, iiidiiscent coal i*eiiui".ns in the retort. 



Sulphuretted Sulphuretted hidrogen gas, passed through melted lard, 



hidrogen not p,.(^fiu(.es no chan;2re, and does not dissolve in it. 



dissolved in it. '^^ , 



Dissolves a lit- Half an ounce of lard being melted on a water bath, two 



tie phosphorus, grains of well purified and very transparent phosphorus were 

 added, and kept a quarter of an hour at the same tempera- 

 ture ; care being taken not to shake it too much, that the 

 air might not acidify the phosphorus. When cold, some of 

 the phosphorus was found undissolved. The lard Iiad ac- 

 quired a slight smell of garlic, and a disagreeable taste : it 

 reddened infusion of litmus: it formed a very copious black 

 precipitate with nitrate of silver, and a less abundant black 

 precipitate with neutral nitrate of mercury at a minimum. 

 An ounce of lard, brought to boil gently, was found to 

 dissolve five grains of phosphorus; but part was precipitated 

 by cooling. The lard was repeatedly washed with boihng 

 water, which it rendered acrid; but it still retained some 

 of the phosjUiorus in actual solution, without its being acid- 

 , ined. 



The 



