NEW METAL NICKELINE. 261 



five quarts of fkimmed milk, and (hortly afterwards one 

 quart of vinegar. He then proceeded with the fecond eva- 

 poration in the boiler. 



This fugar by refining may be made to anfwer all the ufes Subfequent re- 

 of that of the Weft Indies, and may be rendered equally fi;iing as ufuaU 

 white by the ufual procefs. 



IX. 



On Nickeline (Niccolanum), a Metal in many Re/peels refem- 

 bling Nickel, lately dif covered by Dr, J. B. Richter.* 



1 HAVE long fince conjectured in analyfing the cobalt ores Sufpicion of a 



of Saxony, that they contained, befides cobalt, arfenic, cop- j^™ 1H 



per, nickel, and iron, another metal which refembled nickel 



in many fits properties, but the means which I have hitherto 



employed to feparate it did not before afford me any fatisfac- 



tory remits. 



I was chiefly furprifed that nickel, after being purified by Remarkable 



the liquid procefs from cobalt, iron, and arfenic, and after f ? a » tha t nickel 



i i • i i. • r n cleared of iron 



that reduced without the addition of a combuftible body, and arfenic and 



never formed a mafs, but was always found difperfed in (mall fufcd > is almoft 



particles in a hard heavy mafs, which had the appearance of final! globules 



the remains from vitrified copper, 



This hard matter had no metallic luftre, neither was it at- through a hard, 

 traded by the magnet : Its colour was of a blackith grey on h r e e av ^^ acklfll " 

 the furface, with a fmall degree of brightness ; and in powder 

 it was brown, greyifli, and greenifh. 



Some weeks ago I endeavoured to reduce per fe almoft half Experiment with 

 a pound of oxide of nickel, which I had purified as well as a ,ar S e quantity 

 poffible by the liquid procefs, for the greateft part of a year, nickel, 

 at a confiderable expence : as this oxide was not of a lively 

 green, I thought this was caufed by the •« extractive matter" 

 which might be in the potafh employed for the precipitation 

 of the fulphate of nickel from the ammoniacal preparation : it 

 is true that this triple combination had not that beautiful 

 grafs-green colour which it commonly had ; but I thought this 



* Annates de Chimie, LXIV\ 



might 



