A^/nne;5ofm}        Solution  of  Chlorinated  Soda.  263 
1  c.c.  Labarra que  required       5    c.c.  —  Thio,  equalling  0*017685   gms.  CI. 
10 
5  c.c.         "  "  25*1  c.c.  —  Thio,  equalling  0*0887787     "  " 
10 
Average,    10  c.c.  Labarraque  contained  0*1772 
"       970  c.c.  (1000  gms.)  Labarraque  contained  .  17*1887 
5  c.c.  hypochlorite  sol.  req.     60*3  c.c.  —  Thio,  equalling  0*21328 
10 
450  c.c.  "  "    contained  I9'i953 
Whole  lime  residue  required   363    c.c  —   Thio,  equalling  1*2839 
10 
CONCLUSIONS. 
The  lime  contained   21*2250  gms.  CI. 
11    hypochlorite  solution  contained   I9'I953     "  " 
"    Labarraque  contained   17*1887     "  " 
f<    lime  residue       "   1*2839     "  " 
Experiment  E. — Method  U.S. P.,  1890;  1,000  grammes.  Used 
75  grammes  containing  28*1  per  cent.  CI  =  21  075  grammes  CI. 
Obtained  432  c.c.  hypochlorite  solution,  1,000  grammes  (969  c.c.) 
Labarraque,  71  grammes  wet  lime  residue. 
N 
1  c.c.  Labarraque  required     5*2  c.c.  —  Thio,  equalling  o'oi83924  gms.  CI. 
10 
5   "  "  "         26*1    "   —Thio,        "         0*0923157  " 
10 
Average  — 10  c.c.  Labarraque  contained   0*184277      "  " 
969  c.c.  (1,000  grammes)  Labarraque  contained,       17*8564      "  " 
1  c.c.  hypochlorite  sol.  required  12*2  c.c.  —  Thio,  equalling   0*0431514      "  " 
10 
5   "  "         "      61-5   "  ^Thio,        "        0*2175255  " 
10 
Average — 10  c.c.  hypochlorite  sol.  contained   0*43328      "  " 
432  "  "  "  "    18*7176      "  " 
2  gms.  lime  residue  required     13 *4  c.c.  —  Thio,  equalling     0*473958      "  " 
10 
71  "       "        "      contained   1*6825  "  " 
CONCLUSIONS  . 
The  lime  contained   21*075  "  " 
"   hypochlorite  sol.  contained   18*7176  "  " 
"   Labarraque                "   17*8564  "  " 
"   lime  residue              "          .  .   16825  "  " 
Thinking  that  a  possible  source  of  chlorine  loss  in  the  foregoing 
experiments  might  be  found  in  the  calcium  carbonate  precipitate 
from  which  the  finished  Labarraque  is  filtered,  two  samples  of  this 
were  assayed : 
Whole  precipitate  from  Experiment  C  contained  but  ....  0*032807  gms.  CI. 
"  "  M  "        E      "  "  . .  .    0*10477    "  " 
