Critical temperature Cavett method

Input(s)

$T_{b}$: Boiling Point Temperature $\left({ }^{\circ} \mathrm{F}\right)$

API: API Gravity (API)

Output(s)

$T_{c}$: Critical Temperature $\left({ }^{\circ} \mathrm{F}\right)$

Formula(s)

$$ \begin{aligned} \mathrm{T}_{\mathrm{c}}= & 768.071+1.7134 * \mathrm{~T}_{\mathrm{b}}-\left(0.0010834 * \mathrm{~T}_{\mathrm{b}}^{2}\right)+\left(0.0000003889 * \mathrm{~T}_{\mathrm{b}}^{3}\right)-\left(0.00089213 * \mathrm{~T}_{\mathrm{b}} * \mathrm{API}\right) \\ & +\left(0.00000053095 * \mathrm{~T}_{\mathrm{b}}^{2} * \mathrm{API}\right)+\left(0.000000032712 * \mathrm{~T}_{\mathrm{b}}^{2} * \mathrm{API}^{2}\right) \end{aligned} $$

Reference(s)

Wikipedia.org.