## 3 Results
### Density and Viscosity
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Component** & **T/(K)** & \(\rho\)/(g\(\cdot\)cm\({}^{-3}\)) & & \(\eta\)/(mPa\(\cdot\)s) & \\ \cline{3-6}  & & **This Work** & **Lit. Value** & **This Work** & **Lit. Value** \\ \hline  & & & 1.11705 [22] & & \\  & 293.15 & 1.1185 & 1.116583 [23] & 33.270 & - \\  & 298.15 & 1.1148 & 1.11351 [25] & 26.865 & 27.15 [26] \\  & & & 1.1128 [9] & & 27.5 [28] \\  & & & 1.11260 [1] & & 17.00 [9] \\ DEG & 303.15 & 1.1108 & 1.1098 [26] & 21.280 & 21.7 [28] \\  & & & 1.10948 [27] & 21.754 [26] \\  & & & 1.1093 [9] & & 12.4 [9] \\  & 308.15 & 1.1064 & 1.1056 [26] & 17.291 & 17.26 [26] \\  & & & 1.10629 [22] & & 16.9 [28] \\  & & & 1.1052 [9] & & 10.4 [9] \\  & 313.15 & 1.1024 & 1.1023 [28] & 14.117 & 14.2 [28] \\  & & & 1.102274 [23] & & 8.19 [9] \\  & & & 1.0998 [9] & & \\ \hline  & 293.15 & 1.0409 & 1.0406 [29] & & 102.7 [31] \\  & & & 1.03966 [30] & 100.614 & 100.72 [29] \\  & & & 1.0406 [1] & & \\  & & & 1.03556 [31] & & 74.81 [35] \\  & 298.15 & 1.0363 & 1.037863 [32] & 74.927 & \\  & & & 1.0331 [29] & & 57.57 [36] \\ MDEA & 303.15 & 1.0326 & 1.03213 [30] & 57.582 & 57.615 [30] \\  & & & 1.033017 [1] & & \\  & & & 1.02834 [31] & & 44.21 [37] \\  & 308.15 & 1.0288 & 1.0303 [33] & 45.129 & 44.62 [29] \\  & & & 1.0255 [29] & & 34.78 [36] \\  & 313.15 & 1.0250 & 1.0250 [34] & 34.833 & 35.00 [37] \\  & & & 1.025401 [1] & & 34.89 [29] \\ \hline \hline \end{tabular} Standard uncertainties: \(u(p)=0.002\) MPa, Expanded uncertainties: \(Ut(\eta)=5\%\) and \(U(\rho)=0.0015\) g\(\cdot\)cm\({}^{-3}\)(0.95 of confidence).  
\end{table} 
Table 2: _Cont._ \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & & & **T/(K)** & \\ \hline \(x_{1}\) & **293.15** & **298.15** & **303.15** & **308.15** & **313.15** \\ \hline DEG (1) + DMSO (2) & & & & \\ \(0.1062\) & 1.1038 & 1.0988 & 1.0939 & 1.0889 & 1.0840 \\ \(0.2007\) & 1.1068 & 1.1019 & 1.0970 & 1.0921 & 1.0873 \\ \(0.3034\) & 1.1095 & 1.1049 & 1.1000 & 1.0951 & 1.0904 \\ \(0.4110\) & 1.1117 & 1.1072 & 1.1026 & 1.0978 & 1.0932 \\ \(0.5108\) & 1.1133 & 1.1090 & 1.1045 & 1.0998 & 1.0953 \\ \(0.5972\) & 1.1144 & 1.1102 & 1.1058 & 1.1012 & 1.0968 \\ \(0.6955\) & 1.1155 & 1.1114 & 1.1071 & 1.1025 & 1.0982 \\ \(0.8096\) & 1.1168 & 1.1128 & 1.1086 & 1.1041 & 1.0998 \\ \(0.8819\) & 1.1174 & 1.1135 & 1.1094 & 1.1049 & 1.1007 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Density values \(\rho\)/(g\(\cdot\)cm\({}^{-3}\)) as a functions of mole fraction in the temperature range from 293.15 to 313.15 K and at atmospheric pressure. The densities of binary solutions were represented as a function on composition by the following [PERSON] [38] (Equation (3)) and [PERSON] [39] (Equation (4)) equations, and with composition and temperature using the [PERSON] et al. [40] (Equation (5)) and [PERSON] [41] (Equation (6)) equations:  
\[\rho=\rho_{2}+(\rho_{1}-\rho_{2})x_{1}\bigg{(}\frac{1+m_{1}(1-x_{1})}{1+m_{2}(1 -x_{1})}\bigg{)} \tag{3}\]  
\[\rho=\rho_{2}+(\rho_{1}-\rho_{2})x_{1}^{A+Bx_{1}+Cx_{1}^{2}} \tag{4}\]  
\[\rho=x_{1}\rho_{1}+x_{2}\rho_{2}+x_{1}x_{2}\bigg{[} \begin{array}{c}P_{1}+P_{2} T+P_{3}T^{2}+\big{(}P_{4}+P_{5}T+P_{6}T^{2}\big{)}(x_{1}-x_{2})+\\ \big{(}P_{7}+P_{8}T+P_{9}T^{2}\big{)}(x_{1}-x_{2})^{2}\end{array} \bigg{]} \tag{5}\]  
\[\rho=\sum_{i=0}^{2}A_{i}x^{i} \tag{6}\]