Quantitative  Methods. 
Am.  Jour.  Pharm 
April,  1911. 
Below,  in  tabular  form  are  given  the  results  obtained  by  different 
members  of  the  Committee  in  using  these  methods. 
Analysis 
OF  Mercurous 
Chloride. 
Method  No.  i. 
Method  No. 
Chemist 
Per  cent. 
Per  cent. 
Mr. 
T 
L,. 
A 
A. 
99.91 
Mr. 
B. 
L. 
  98.94' 
99-33 
99-25 
99-35 
99-23 
99.19 
Mr. 
L. 
D. 
 100.46  ^ 
99.84 
99.71 
100.04 
100.01 
99.62 
100.04 
99.84 
100.18 
Special  Method* 
Per  cent. 
99.62  ' 
99-79 
Mr.  F.  O.  Taylor. 
Comments, 
'  Method  is  entirely  satisfactory  if  closely  adhered  to. 
^  Method  worked  well,  although  some  time  was  consumed  in  effecting 
solution  in  iodine. 
^  The  factors  seemed  too  large  to  permit  of  sufficient  accuracy  when 
working  upon  samples  of  close  to  100  per  cent,  purity. 
*  (Mr.  Taylor's  results  are  unfortunately  unavailable,  but  his  comments 
are  at  hand.)  The  chief  difficulty  with  this  method  is  the  dissolving  of 
the  mercury  by  the  iodine  solution,  which  is  very  often  extremely  slow. 
Aside  from  this,  the  method  seems  very  good. 
^  Samples  were  dissolved  in  sodium  sulphide  solution  and  electrolized 
three  quarters  of  an  hour  with  0.5  ampere,  4-5  volts.,  using  mercury  cathode 
and  rotating  anode,  (See  Jour,  Ind,  and  Eng.  Chem.,  vol.  2.  page  481.) 
Results  very  satisfactory. 
Analysis  of  Mercuric  Iodide. 
Chemist. 
Mr.  L.  A.  Brown. 
Mr.  B.  L.  Murray. 
Method 
Method 
Method 
No.  2. 
No,  3. 
No  4- 
Per  cent. 
Per  cent. 
Per  cent. 
95-74" 
99-67" 
100.39 
79-17" 
98.68 
98.57" 
86.36 
99-38 
99.38 
81.50 
98-52 
86.04 
62.01 
80,82 
Method 
No.  5. 
Per  cent, 
Method 
No.  6. 
Per  cent. 
