133 
Lit  Ilium  Citrate. 
Am.  Jour.  Pharm. 
March,  1819. 
. 
y 
0 
in 
tn 
tn 
- 
0 
li 
cS 
o 
2 
O 
a;  £ 
•  0 
M  uj 
O 
*m 
v  U 
Per  Cent,  of  Moisture  I,c 
at  115°  C.  to  120°  C. 
s 
Number. 
Physical  Appearanc 
Microscopical  Appe; 
1  Soluble  in  Water  a 
Per  Cent,  of  Moistui 
at  ioo°  C,  in  6  hoi 
Per  Cent,  of  Moistui 
at  no°  C,  in  6  hoi 
Per  Cent,  of  Moistui 
at  115°  C,  in  8  hoi 
Per  Cent,  of  Moistui 
at  140°  C,  in  8  hoi 
Per  Cent   of  Ijthii 
Citrate, 
I 
Crystals. 
Crystals. 
i  in  2-42 
IO'OO 
16-51 
16-51 
21-13 
98-68 
2 
Crystal 
powder. 
Crystals. 
i  in  2-43 
0-00 
0-40 
8-34 
8'34 
13-10 
98-73 
3 
Powder. 
Crystals 
and 
amorphous. 
i  in  2-43 
o-io 
0-50 
7"23 
10-93 
12-00 
98-94. 
4 
Powder. 
Crystals 
and 
amorphous. 
i  in  2-47 
19-90 
20'00 
22-13 
22-40 
24-90 
99"05 
5 
Crystal 
powder. 
Crystals 
and 
amorphous. 
i  in  2-48 
16-93 
I9"50 
21-22 
23-20 
25'50 
98-56 
6 
Crystal 
powder. 
Crystals. 
1  in  2*42 
O"20 
1  'So 
5'i4 
570  . 
12-49 
98*60. 
7 
Crystal 
powder. 
Crystals 
and 
amorphous. 
1  in  2-38 
o-6o 
5-00 
5-10 
5*30 
12-36 
98-81 
8 
•  ■ 
Crystals. 
Crystals. 
1  in  2-44. 
i7'5° 
20'00 
22-50 
23-40 
25-57 
98-79 
1  This  is  the  anhydrous  chemical. 
There  seems  to  be  some  difference  of  opinion  as  to  whether  or 
not  the  article  is  deliquescent.  Before  a  judgment  can  be  passed, 
it  must,  first  of  all,  be  decided  whether  the  hydrous  or  the  anhy- 
drous product  is  meant.  The  1898  Br.P.  says  the  hydrous  salt  is 
deliquescent.  The  writer  has  exposed  powdered  lithium  citrate, 
containing  the  full  quota  (25-5  per  cent.)  of  water  of  crystallization 
to  an  atmosphere  saturated  with  moisture  (raining  more  or  less  all 
the  time)  for  three  days,  and  there  was  not  a  sign  of  deliquescence. 
He  has  also  seen  a  container  of  a  similar  article  exposed  for  months 
and  the  only  sign  of  deliquescence  was  a  slight  lumpiness,  which 
could  hardly  be  attributed  to  any  such  cause. 
On  exposing  the  samples,  dried  to  a  constant  weight  at  1400  C, 
to  a  saturated  atmosphere,  as  above,  six  deliquesced  very  rapidly 
and  the  other  two  only  slowly.  Enough,  however,  to  call  them 
deliquescent  in  a  moist  atmosphere.  The  conclusion  would  be  that 
the  hydrous  product  is  not  deliquescent,  while  the  perfectly  dry 
article  is  more  or  less  deliquescent.    It  should  be  noted,  however,. 
