76 Qualitative Tests. 
Iithium.—F use with baric chloride, by which the 
lithium flame is unchanged. 
IN THE WET WAY. 
De NaOH, NH.OH, Na:COs, (NH:)2COs, and Na: 
HPO. form precipitates which closely resemble those 
produced by these reagents with Ba salts. 
Confirm.—By blowpipe tests. 
SULPHOUR, S. 
WITH THE BLOWPIPE. 
On Coal, with Soda and a little Borax.—Thor- 
oughly fuse in the R. F. flame, and either, 
(a) Place on bright silver, moisten, crush, and let 
stand. The silver will become brown or black. Or, 
(b) Heat with dilute HCl (sometimes with pow- 
dered zinc) ; the odor of H:S will be observed. 
In Open Tube.—Suffocating fumes. Some sul- 
phates are unaffected. 
In Closed Tube-—May have sublimate red when 
hot, yellow cold, or sublimate of undecomposed sul- 
phide, or the substance may be unaffected. 
With Soda and Silica (equal parts).—A yellow or 
red bead. 
To Determine whether Sulphide or Sulphate.— 
Fuse with soda on platinum foil. The sulphide only 
will stain silver. 
IN THE WET WAY. 
1. BaCl: gives a white precipitate, BaSOs, when 
added to sulphuric-acid solutions. Practically insolu- 
ble. 
2. On addition of HNO: to sulphides H:S is given 
off. 
TELLURIUM, Te. 
WITH THE BLOWPIPE. ; 
On Coal.—Volatile white coat with red or yellow 
border. If the fumes are caught on porcelain, the re- 
Rep. 
