Smith. | 70 (June 15, 
crystals. The acid is sublimable with partial decomposition. A drop of 
ferric chloride added to its aqueous solution imparts to the latter a beautiful 
violet coloration. 
The acid is very probably Parachlormetachlor-ortho-oxyhenzoic acid 
and may be graphically represented as follows : 
COOH 
OH 
AG 
ch 
A combustion was made of the barium salt. 
Carbon and Hydrogen Determination. 0.2092 Grm. barium salt dried at 
180°C for several hours were burned with coarse and fine lead chromate, 
and gave 0.241 Grm. CO,=—.065 Grm. carbon=30.9%C. Farther .012 
71m. H,0=—0.57% H. 
SALTS. 
DICHLORSALICYLATE OF BARIUM. 
(C, H, Cl, OH COO), Ba+33 H,O. 
This salt was produced by boiling the free acid with an excess of barium 
carbonate. Boiling water dissolves it very readily. In cold water it is 
insoluble. From an aqueous solution it crystallizes in large, almost color- 
less needles, which are usually combined to aggregated masses. 
Water Estimation. 
0.6026 Grm. air-dried salt lost upon being heated for three hours at 180° C 
.0623 Grm. H, O=10.34% H, O. 
The calculated percentage of water for 3} molecules equals 10.29%. 
Calculated. Found. 
(C,H, Cl, OH COO), Babb soni 
+33 H, O == 63=——0F29\%e 10.34 
614—100.00 &%. 
Barium Estimation. 
I. 0.5403 Grm. anhydrous salt were placed in a platinum crucible, a few 
drops of sulphuric acid then added, and this then evaporated to dryness. 
0.2227 Grm. barium sulphate were obtained, corresponding to 0.13809 Grm. 
barium=24.16% Ba. 
II. 0.6075 Grm. anhydrous salt gave 0.2550 Grm. barium sulphate, 
equaling 0.1499 Grm. barium—24.67% Ba. 
Calculated %. Found %. 
C,,=168—30.60 30.90 
eo 9 OT 
OF 96—=18. 60 
Cl ,=142—25.86 
Ba=131=24.95 24.16 and 24.67 
