SDS Volume

Volume 78. Acetonitrile Binary Systems, p 1005

Source Publication

Szydlowski, J.; Szykula, M.; Fluid Phase Equilib. 154, 79 (1999).

Conditions:

Room Temp: 253 - 279 $\pu{K}$

Compiler:

V.P. Sazonov

Methodology:

The synthetic method was used with a simplified version of the apparatus described in work [1]. Temperature was changed at the rate < 0.01 K/min - there was no visible influence of the rate on the transition temperature up to the rate 0.1 K/min. Due to the very weak turbidity a long capillary cell was employed. A 5-mW Polythec HeNe laser was used as a probe for detecting the phase separation.

Sample Information:
  1. Byk-Malinckrodt; AR; carefully purified by the column distillation; purity of the collected fractions at least 99.95 mass%.
  2. From Institute of Atomic Energy, Isotope Distribution Center; 99.92% D; twice distilled.
Measurement Errors:

Ambient temperature: ±5 mK

Methodology Citation

1 Szydlowski, J.; Rebelo, L. P.; Van Hook, W. A.; Rev. Sci. Instrum. 63, 1717 (1992).

System Components:
  1. Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
  2. Water-d2, $\ce{ D2O }$; [7789-20-0] NIST WebBook
Experimental Data

UCST was reported at 278.534 ± 0.005 K at x1c = 0.362 ± 0.002 (100 w1 = 53.8, compiler).

$T$ (°C) $T$ ($\pu{K}$) $x_{1}$ w1
-19.733253.417 - -
-11.449261.701 - -
-6.624266.526 0.152 26.9
-2.804270.346 - -
-1.393271.757 0.177 30.6
0.211273.361 - -
1.348274.498 0.201 34.0
1.838274.988 - -
2.953276.103 - -
3.209276.359 0.226 37.4
3.661276.811 - -
4.209277.359 - -
4.277277.427 0.250 40.6
4.786277.936 - -
4.906278.056 0.276 43.9
5.005278.155 - -
5.241278.391 - -
5.313278.463 0.302 47.0
5.340278.490 - -
5.354278.504 0.326 49.8
5.384278.534 0.350 52.5
5.385278.535 - -
-19.733253.417 0.800 89.1
-11.449261.701 0.745 85.7
-6.624266.526 0.702 82.8
-2.804270.346 0.653 79.4
-1.393271.757 - -
0.211273.361 0.601 75.5
1.348274.498 - -
1.838274.988 0.575 73.5
2.953276.103 0.547 71.2
3.209276.359 - -
3.661276.811 0.524 69.3
4.209277.359 0.503 67.5
4.277277.427 - -
4.786277.936 0.473 64.8
4.906278.056 - -
5.005278.155 0.450 62.6
5.241278.391 0.424 60.1
5.313278.463 - -
5.340278.490 0.400 57.7
5.354278.504 - -
5.384278.534 - -
5.385278.535 0.375 55.2

Download Data   link to XML output link to JSON output link to JSON-LD output