300 
MESSRS. THOMAS MARTIN LOWRY AND PERCY CORLETT AUSTIN 
Table X. — Molecular Rotatory Power of Tartrates. 
Salt. 
Percentage of 
water. 
P. 
Obs. 
Calc. 
Na 2 H 4 C 4 0, ; .2H,0 ... 
15-66 
15-65 
22-05 
15-70 
22- 54 
23- 02 
34-04 
34-32 
34-99 
K 2 HA0 6 .iH 2 0 ... 
3-94 
lost 
at 150° 
3-83 
32-00 
3-54 
lost 
at 120° 
32- 68 
33- 60 
35-44 
37-12 
NaKHAO t ;.4H.O ... 
25-53 
25-53 
44-50 
44-63 
44- 68 
45- 01 
(NHOoHAOo 
27-60 
30-38 
32-00 
32- 10 
33- 79 
KSb0H 4 C 4 0 6 .|H 2 0... 
5-53 
5-32 
d. 
C. 
a 5461- 
[M] d . 
1-1379 
25-09 
44-75 
1-1411 
25-72 
45-78 
58-45 58-35 
1•1443 
26-34 
46-79 
(Thomsen) 
1-2207 
41-55 
71-09 
1-2228 
41-97 
71-80 
56-10 56-36 
1-2278 
42-96 
73-50 
(Thomsen) 
1-2263 
39-24 
78-76 
1-2318 
40-255 
80-86 
67-20 
1-2395 
41-647 
83-81 
67-96 
1-2542 
44-45 
89-48 
1-2678 
47-06 
95-07 
1-2523 
55-73 
85-47 
1-2533 
55-93 
85-88 
61-72 
1-2536 
56-01 
86-01 
1-2557 
56-52 
86-69 
1-1333 
31-28 
77-87 
1-1466 
34-83 
87-16 
1-1548 
36-95 
92-50 
1-1550 
37-075 
92-81 
65-43 
1-1637 
39-32 
99-03 
1-0382 
5-74 
59-61 
1-0368 
5-516 
57-20 
573-7 
P = grammes of salt in 100 gr. of solution. 
d = density. 
0 — grammes of salt in 100 c.c. of solution. 
Values obtained by interpolation are shown in italics. 
