218 TT. G. Wormley on the Chemical Reactions of Strychnia. 
The precipitate is very soluble in acetic acid, and if obtained 
from dilute solutions, it is, also, soluble in a drop of potash, giv- 
ing a red liqui ; but when produced from strong solutions, the 
precipitate will not all dissolve in a drop of potash solution. 
8. Bichlorid of Platinum. 
1,5, an immediate yellow amorphous precipitate which 
— granular. 
=, an amorphous precipitate in a few moments, which 
une granular. 
x the results are very good in a few minutes. 
x, if the solution be rubbed, small granules begin to 
pial afew minutes, and soon the result is satisfactory. 
9. Terchlorid of Gold. 
1. ys, gives a bright yellow amorphous precipitate, which 
soon becomes partly a most of the granules float upon 
the surface of the drop. A portion of the precipitate collects into 
little — flak 
= suum gives much the same reaction as No. 1, not so abun- 
ae: 
Poo 9 pg 
- Ba. 84 
age $2 
3. r3,b00, gives an almost oe d rigiane 
THTTD) gives very satisfactory re 
at this wich of ailetion the precipitate is still per- 
ceptible, but fot satisfacto 
the solution contains more than 5,';5 ~ its weight, the s eoas pies 
precipitate from ;,,; or more dilute solutions, will readily dis- 
solve, without much change of color, upon the addition of a drop 
or two of potash solution; if then the mixture be boiled it will 
give a fine purple color, with sometimes a purple precipitate. 
When the precipitate is from a stronger solution than above 
it does not readily dissolve in a solution of potash, aD 
when the mixture is boiled it behaves as above 
10. Chromate of Potash. 
tie eres. an immediate mass of yellow crystals, soluble in 
30 “irop strong acetic acid. 
2. sess, crystals n to form in a few seconds, but they are 
Ras very abundant Pott standing 15 minutes, 
s. sist) snes Sraee microscope, a few prisms may be observed 
in 8 minutes, but no indication to the eye, after standing 20 
minutes, 
5 
aaa 
