Naphthalene as a reference substance for vapour pressure measurements looked upon from an unconventional point of view

Incoherent broad-band cavity-enhanced absorption spectroscopy

“…5.1. It consists of a wellpumped static vacuum cell a , which was filled with gaseous naphthalene at its room temperature vapour pressure (P Nap ∼ 0.1 mbar) [vanderLinde98] and buffered with either helium or argon. The stagnation pressures P He for helium and P Ar for argon were typically between ∼ 5 and 135 mbar and between ∼ 5 and 30 mbar, respectively.…”

Liquid–vapour equilibria of the methyl esters of alkanoic acids: vapour pressures as a function of temperature and standard thermodynamic function changes

“…For a (pre-)screening of the data sets, to judge precision and mutual consistency, we make use of the 'arc method', which was proposed recently [3,4]. The arc method corresponds to a representation of data, in which the usual plot of ln p versus 1/T is replaced by a plot of ln f versus 1/T.…”

The (solid+vapor) equilibrium. A view from the arc

“…In addition, agreement with the class 1 data is shown by the data by Fowler et al [14], de Kruif [21] and Colomina et al [20]. In a recent investigation [10], all of the data available for crystalline naphthalene have been used to arrive at a recommended expression, in terms of Eq. (7) (1 mol (1 .…”

“…In Fig. 1(b) the same set of data is represented by the ln f versus 1/T , or 'arc' representation (Oonk et al [9]; van der Linde et al [10]), where ln f is defined as…”

“…The effect is that vapor pressure data, in the ln f versus 1/T representation, are giving rise to an arc with a maximum. The value of DC 8 p ,m is reflected by the dimensions of the arc as [10] …”