516  Specific  Gravities  of  Ammonia  Solutions.  {Am'oS^'^vm' 
A  NEW  DETEEMINATION  OF  THE  SPECIFIC  GRAVI- 
TIES OF  SOLUTIONS  OF  AMMONIA. 
By  G.  Lunge  and  T.  Wiernik.1 
Grlineberg  (Jour.  Soc.  Chem.  Ind.,  1889,390)  lately  published  a  new 
table  of  the  specific  gravities  of  solutions  of  ammonia  which  table 
appears  to  agree  very  closely  with  that  published  years  ago  by 
Wachsmuth.  The  tables  of  both  investigators  are,  however,  based 
on  determinations  performed  at  different  temperatures,  and  if  the 
necessary  connections  are  introduced  into  Wachsmuth's  tables,  who 
took  12°C.  as  the  normal  temperature,  it  will  be  found  that  the  agree- 
ment with  Grlineberg,  although  still  good  is  no  longer  very  close. 
Lunge  and  Wiernik  now  made  a  large  number  of  experiments,  in 
which  the  specific  gravities  and  actual  percentages  of  ammonia  in 
ammoniacal  liquors  were  determined  with  the  greatest  possible  care. 
From  these  determinations  a  table  was  calculated,  which  agrees  very 
well  with  Wachsmuth's  corrected  for  a  temperature  of  15°C,  whereas 
Griineberg's  figures  are  a  little  too  low,  as  will  be  seen  by  the  com- 
parison of  the  tables. 
Specific 
Gravity. 
Carius 
14°C. 
Griineberg 
15°G 
Smith 
14°C. 
Wachsrnuth 
Corrected 
for  15°0. 
Lunge  and 
Wiernik 
15°C. 
0-880 
35-50 
35-42 
35-60 
0-885 
35-65 
33-50 
33-64 
33  67 
0-890 
33-35 
31-40 
31-86 
31-73 
0  895 
31-10 
29-50 
30'4 
30-08 
30-03 
0-900 
29-00 
27-70 
28-34 
28-33 
0-905 
27-10 
26-00 
26-64 
26-64 
0910 
25-20 
24-40 
24-4 
25-02 
24  99 
0-915 
23-40 
22  85 
23  40 
23-35 
0-920 
21-65 
21-30 
21-80 
21-75 
0  925 
20-00 
1980 
20-3 
20-26 
20-18 
0-930 
18-40 
18-35 
18-74 
18-64 
0-935 
1690 
16-90 
17  20 
17.12 
0  940 
15-45 
15-45 
15-6 
1569 
15-63 
0945 
14-05 
14-00 
14-22 
14-17 
0-950 
1265 
1260 
12-7 
1280 
12-74 
0-955 
11-25 
H'20 
11-35 
11  32 
0-960 
9  90 
9'80 
9-8 
9-98 
9-91 
0-965 
8-55 
8  40 
8-62 
8-59 
0-970 
7-25 
7-05 
7-2 
7-27 
7-31 
0  975 
600 
575 
5-97 
6-05 
0  980 
4-75 
4  50 
4-6 
4  71 
4-80 
0  985 
3-55 
3-30 
3-48 
355 
0-990 
2-35 
2-15 
2-3 
2-26 
2-31 
0-995 
1-08 
1-05 
117 
114 
1-000 
000 
o-oo 
0  00 
000 
1Zeits.f.  angew.  Chem.,  1889,  181-183.  Reprint  from  Jour.  Soc.  Chem.  Industry. 
