Potassiumbichromate: KoCr,0,. 
| Maximum Pressure H | 
Surface- 
tension 7 in 
Molecular 
Specific |  Surface- 
| in min, mer- 
Temperature 
in ®.C 
Molecular weight: 294,2. Radius of the Capillary tube: 0.04315 cm. at 18° C. 
Depth: 0.1 mm. 
Above 540° C. a decomposition sets in, while gas is developed. After cor- 
rections the specific gravity at 240° C. is: 2.271; at 462°.1 C.: 2.242; at 
4979.4. C.: 2,217. Generally at £ C.: Ago = 2,285 —0.000695 (t— 400). 
The tempereture-coefficient of » has a mean value of about 0.86 Erg per 
degree, at least between 480° and 535° C. 
whe a 
| Thallous Nitrate: 7/NO3. 
| » | gravity d,. | energy « in 
cury of in Dynes Erg per cm? a | Erg per cm?2. | 
| 0° C. | 
|. : Ek ú L | | 
HOE: 3 PAN BES vie 100 BAD: pike 1401 Lf kaate | se 
454 | 4.825 6433 139.4 2.248 | 3593 
480 4.792 6389 138.4 2.229 3588 
504 | 4.743 6323 137.0 2213 | 3568 
535 4.672 6229 | 135.0 | 2.191 | 3540 
= ; At je N 
| 
v Maximum Pressure H 
= Surface- Molecular 
3 UO a d 
| 3 ° in mm. m | nand te | e ae in 
Wi . mer-, ! n win | 
| = | lth i's Erg per cm?, 4° | / 
| 5 = pale | in Dynes sp | Erg per cm?. 
|: = SS ; = = SS = oo = TT a ee ee en 
| 210° 4.071 | 5428 in ae Hoh 4.899 1681.9 
245 3.996 | 5328 115.2 | 4.838 1665.7 
265s | 3.946 | 5261 113.8 4.806 1652.8 
285 | 3.884 5178 112.0 4.768 ) 1635.2 
812 ANAS “23 806 5075 109.8 4.721 1613.8 
339 | 3.723 4963 107.4 | 4.674 | 1589.0 
364 3.645 4860 | 105.2 4.630 1566.4 
389 BDD 4754 | 102.8 | 4.586 | 1540.4 
430 3.445 | 4592 99.5 | 4.515 1506.5 
Molecular weight: 266.01. Radius of the Capillary tube: 0.04315 cm. at 15° C. 
Depth: 0.1 mm. 
The salt melts at 206° C. to a clear colourless liquid. The specific gravity 
at 214° C. was: 4.892; at 254’ C.: 4.824; at 290°? C : 4.74. Att’ C.: dyo= 
= 4,917—0.00175 (t - 200). 
The temperature-coefficient of » is about 0.81 Erg per degree, as a mean 
value. 
