Correction to “Investigation of molecular interaction, performance of green solvent in esterification of ethanol and acetic acid at 298.15 K and at 1 atm”

Abstract

Ramalingam A, Banerjee T, Santhi VM, Mishra DK, Reji DJPM, Nagaraj S. Investigation of molecular interaction, performance of green solvent in esterification of ethanol and acetic acid at 298.15 K and at 1 atm. Asia-Pac J Chem Eng. 2023; 18(2):e2875. doi:10.1002/apj.2875

Errors included in the original article may be due to the purity of individual components and experimental error, including sample bottle cleaning and the syringe used for density measurements. In addition, the apparent molar volume was calculated using a mathematical expression.

In Section 4.1, Para 1, Line 7: The following correction has been done.

“lesser than 0.02%” instead of “lesser than 0.23%”.

In Section 4.1, Equation (1): The equation was corrected as:

“ ${\rho }_{\text{mixture}}=a\left(T\right)+b$” instead of “ ${\rho }_{\text{mixture}}=a+b\left(T\right)+c{\left(T\right)}^2$.

In Section 4.2, Para 2: The following correction has been done.

“[EMIM][EtSO₄] > [EMIM][HSO₄] > EtAc > [ChCl][Gly] > [ChCl][AA] > EtOH > HAc > water”.

Use the above lines, instead of:

[EMIM][EtSO₄] < [EMIM][HSO4] < EtAc < [ChCl][Gly] < [ChCl][AA] < EtOH < HAc < water.

In Section 4.2, Para 3, Line 3: the following line has been corrected as:

“It can be observed that the $V^E$ values are positive for the binary mixtures of EtOH with EtAc, DES₁ {[ChCl][2AA]}, and DES₂ [ChCl][2Gly] over the entire composition range at all the studied temperatures”.

Use the above lines, instead of:

“It can be observed that the $V^E$ values are positive for the binary mixtures of EtOH with EtAc, [EMIM][HSO₄], [EMIM][EtSO₄], [ChCl][AA], and [ChCl][Gly] over the entire composition range at all the studied temperatures”.

In Section 4.2, Para 4, Line 7: The following line has been corrected as:

“The maximum of excess molar volume is 3.6466 cm³ mol⁻¹ at x₁ = 0.5014 for EtOH + [ChCl][2Gly], 1.2227 cm³ mol⁻¹ at x₁ = 0.5010 for EtOH+ [Ch-Cl][2AA], and EtOH + EtAc is 0.1102 cm³ mol⁻¹ at x₁ = 0.5013, respectively, at 293.15 K. The $V^E$ values follow the order: [Ch-Cl][Gly] > [Ch-Cl][HAc] > EtAc with ethanol”.

Use the above lines, instead of:

“The maximum of excess molar volume is 15.450 cm³/mol at x₁ = 0.5 for EtOH + [EMIM][EtSO₄], 14.483 cm³ mole⁻¹ at x₁ = 0.6 for EtOH+ [EMIM][HSO₄], 5.714 cm³ mole⁻¹ at x₁ = 0.4 for EtOH + [Ch-Cl][Gly], 1.785 cm³ mole⁻¹ at x₁ = 0.4 for EtOH + [Ch-Cl][HAc], and EtOH + EtAc is 1.512 cm³ mole⁻¹ at x₁ = 0.4, respectively. The $V^E$ values follow the order: [EMIM][EtSO₄] > [EMIM][HSO₄] > [Ch-Cl][Gly] > [Ch-Cl][HAc] > EtAc.”

In Section 4.2, Para 5, Line 1: The following line has been corrected as:

“EtOH + AA, EtOH + water, EtAc + AA, EtOH + [EMIM][EtSO₄], and EtOH + [EMIM][HSO₄] exhibit negative deviations from ideality over the whole composition range at all the studied temperatures. The minimum of $V^E$ shift from the mole fraction range, x₁ = 0.5003 (−1.1830 cm³ mol⁻¹) for EtOH + water, x₁ = 0.4021 (−1.4196 cm³ mol⁻¹) for EtAc + AA, −0.6036 cm³ mol⁻¹ at x₁ = 0.7011 for EtOH + [EMIM][EtSO₄], −1.588 cm³ mol⁻¹ at x₁ = 0.4022 for EtOH + [EMIM][HSO₄], and x₁ = 0.5017 (−0.5035 cm³ mol⁻¹) for EtOH + AA, respectively. Here, the $V^E$ values of the binary micture of EtOH + water are more negative when compared to the mixture of EtOH + AA and EtAc + AA”.

Use the above lines, instead of;

“EtOH + HAc, EtOH + water and EtAc + HAc exhibit negative deviations from ideality over the whole composition range at all the studied temperatures. The minimum of $V^E$ shift from the mole fraction range 0.5 (−3.485 cm³ mole⁻¹) for EtOH + water, EtAc + HAc (−1.763 cm³ mole⁻¹) and 0.3 (−0.489 cm³ mole⁻¹) for EtOH + HAc, respectively. Here, the $V^E$ values of the binary micture of EtOH + water are more negative when compared to the mixture of EtOH + HAc and EtAc + HAc”.

Figures 2, 3, and 4 have been revised. The following figures should be used in place of the original Figures 2, 3, and 4.

Table 4 has been revised. The following table should be used in place of the original Table 4.

Table 5 has been revised for EtOH + EtAc, ethanol (1) + [EMIM][EtSO₄] (2), and ethanol + water mixtures of RK fitting values. The following table should be used in place of the original Table 5.

Table 6 has been revised. The following table should be used in place of the original Table 6.

Table S1 has been revised. The following table should be used in place of the original Table S1.

Table S1: The density correlation parameters a, b, and R² for all the studied systems.

Table S4 has been revised. The following table should be used in place of the original Table S4.

Table S4: Excess molar volume of ethanol(1)+water(2), ethanol (1) +acetic acid (2), ethyl Acetate (1) + Acetic Acid (2), ethanol (1) +ethyl acetate (2), ethanol (1) + DES-1(AA) (2), ethanol (1) + DES-2(Gly), ethanol (1) + [EMIM][EtSO₄] (2) and ethanol (1) + [EMIM][HSO₄] (2) over the entire mole fractions and at different temperatures.

Table S5 has been revised. The following table should be used in place of the original Table S5.

Table S5: The partial molar volume (cm³/mole), excess partial molar volume (cm³/mole) and apparent molar volume (cm³/mole) of individual compounds at different temperatures and 1 atm.

Standard uncertainty: u (T) = 0.01 K, u(p)=0.01MPa, u (ρ) = 0.0001 g cm⁻³ and for $\overline{V_i}$, ${\overline{V}}_i^E,V_{\varnothing i}$, = 0.002 cm³ mole⁻¹ (0.95 level of confidence).