of nickel. 



Analysis of the Braunau Meteorite, 173 



ivdric solution contains iron and a small cmantitv 



The ratio of the portion soluble in chlorohydric acid to the in- 

 soluble is in 100 = 97 : 3. 



(I had not above 0*073 grm. at my disposal fortius examina- 

 tion, of which 0-002 remained undissolved.) 



The constituents of this substance are consequently 



Sulnhur ( m 1^0-= 78-9 simple sulphuret of iron. 



Nickel. ' 



Chromium. 

 Carbon. 



/ 



From the 0073 grm. employed, the amount of peroxyd of iron 

 thrown down from the chlorohydric solution was 083, conse- 

 quently equal to 0-057 of metallic iron. This, in order to form 

 smiple-sulphuret of iron would require 0-033 sulphur ; the sulphu- 

 ret of iron would therefore alone amount to 0*090, that is to say, 

 more than the weight of the body employed. A minute portion 

 of the iron must therefore be combined with nickel, carbon and 

 chrome in the body under examination. I was not able to detect 

 the presence of phosphorus therein. 



2. The metallic scales, or spangles. — Easy a matter as it is to 

 obtain the first substance in a state of purity, namely, by separa- 

 ting it from the principal mass by mechanical means, it is one of 

 equal difficulty to obtain this body free from those substances 

 which, like these scales themselves, are left as a residue after the 

 action of chlorohydric acid upon the mass, namely, carbon, silica, 

 &c. The quantity of this substance obtained is moreover ex- 

 tremely limited, scarcely indeed exceeding one per cent, of the 

 niass even when taking into account the powder with which it is 

 separated in common. 



Chlorohydric acid exerts no action whatever upon this sub- 

 stance, and nitric acid attacks it but very slightly; in nitro-muri- 

 atic acid however, it is readily soluble by the application of heat, 

 leaving merely a slight residue of silica. 



This solution when completely evaporated to dryness, leaves a 

 residue, on the surface of which there is a formation of shining 

 reddish-yellow scales easily detached from the glass ; the inferior 

 portion consists of a yellowish white mass adhering thereto. Both 

 are completely insoluble in water, yet the white mass, provided it 

 has been dried by a gentle heat, passes with the water through the 

 filter ; when a strong heat on the other hand has been employed 

 to dry it, the white mass remains upon the filter, as do also the 

 yellow scales. Both portions of the residue are readily soluble 

 w ith a yellow color in chlorohydric acid, their behavior being 

 that of basic phosphate of the peroxyd of iron. 



