SDS Volume (5215)

Volume 78. Acetonitrile Binary Systems, p None

Original Measurements

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

Variables:

Room Temp: 260 - 272 $\pu{K}$

Prepared by:

V.P. Sazonov

Method/Apparatus/Procedure:

The synthetic method was used with a simplified version of the apparatus described in [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.

Source and Purity of Materials:
  1. Byk-Malinckrodt; AR; carefully purified by the column distillation; purity of the collected fractions at least 99.95 mass%.
  2. Millipore Mili-Q; quality.
Estimated Errors:

Ambient temperature: ±5 mK

References

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

Components:
  1. Acetonitrile, $\ce{ C2H3N }$; [75-05-8] NIST WebBook
  2. Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Mutual solubility of acetonitrile (1) and water (2)
$T$ (°C) $T$ ($\pu{K}$) $x_{1}$ w1
-13.181259.969 - -
-10.007263.143 0.170 31.8
-9.225263.925 - -
-5.763267.387 0.201 36.4
-5.763267.387 - -
-3.785269.365 - -
-2.631270.519 0.250 43.2
-2.226270.924 - -
-1.919271.231 0.274 46.2
-1.717271.433 - -
-1.539271.611 0.301 49.5
-1.418271.732 - -
-1.384271.766 0.326 52.4
-1.372271.778 - -
-1.348271.802 0.349 55.0
-1.338271.812 - -
-1.338271.812 0.365 56.7
-13.181259.969 0.700 84.2
-10.007263.143 - -
-9.225263.925 0.650 80.9
-5.763267.387 - -
-5.763267.387 0.595 77.0
-3.785269.365 0.550 73.6
-2.631270.519 - -
-2.226270.924 0.498 69.3
-1.919271.231 - -
-1.717271.433 0.460 66.0
-1.539271.611 - -
-1.418271.732 0.428 63.0
-1.384271.766 - -
-1.372271.778 0.402 60.5
-1.348271.802 - -
-1.338271.812 0.375 57.7
-1.338271.812 0.365 UCST

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