NEW METAL NICKELINE. 



263 



Hot well acquainted with nickel in its perfectly pure ftate 



might take it for that metal, I have called it Nickeline (Nic- Name Nickelm, 



colanum.) 



The nickeline was free from all the metals which are Yound 

 in the cobalt ores, except a little copper. 



The fpecific gravity of caft nickeline, which enters more Specific gravity 

 ••• . ,--..,.. , /• r j -l 8 > 6 * Nitric acid 



readily into fufion than nickel, is 8,55 ; and oi forged nicke- dhTalves it* 



line 8,60. On putting it into nitric acid and heating it, it 



is attacked more quickly than nickel : I remember having 



obferved an equally violent adion of nitric acid on nickel 



reduced by charcoal, which I then confidered as pure, ancj 



which I diflblved in order to precipitate from it by potalh an 



oxide, which I might reduce per fe. 



The folution of the nickeline went on well; being come to 

 the point of faturation, it had a black ifli-green colour, and 

 aflumed a gelatinous confidence. 



I employed my firft care to feparale from it a part of the Separation by 



iron which I thought it contained, and left it to dry a little ac |d. Refidue 



over a fpirit lamp : the mafs became continually of a deeper * black powder. 



green, and in approaching to drynefs it gave out much red 



vapours, and the refidue became of a blackilh grey ; I added 



drilled water to it, which diflblved but little of it, and that 



which was diflblved was an infignificant quantity of nickel. 



I poured muriatic acid on the blackiQi powder well waflied, So,uble . m mu - 

 * ' ' riatic acid, 



which gave a green folution, in difengaging a itrong odour Green folution j 



of oxigenated muriatic acid. which when , 



rW L '.' • r i ' '• ii i • • r i . 'dried gave a red- 



Ihe muriatic iolutipn was, as well as the nitric lolution, of difh mafs that 



a deep blackifli grafs-green colour: being evaporated to dry- turns 6 r e en ty 



nefs, it produced a reddifli mafs, which became green in a 



moill air, and which communicated the green colour to water 



in which it was diflblved. 



This dark-coloured oxide of nickeline was infoluble in nitric Da ^ k ? xJde °* 

 acid, and in fulphuric acid ; but if fugar or alcohol was added, fduble in nitric 

 the folution took place with facility at the boiling point. or lulphuric 



The fulphate of nickeline, being combined with water, is com buftible 

 alfo of a blackifli green ; but it aflumes a pale red colour on matter, 

 bei rig deprived of the water. Jjj*" of nic * 



If carbonate of potafli be added to the preceding folutions Precipitate by 



of kickeline, it occafions a precipitate of blue carbonate of carb ° naI;e of - 



..... potam j 



nickeline, inclining a little (o grey and green, and or a pale 



tint ; Thjs combination is very light and foft, and ditTolves in, 



the 



