Ethanol Water Mixture Density

Reference data and engineering information about ethanol water mixture density for fluid mechanics applications.

ethanolwatermixturedensityData Table

Overview

Engineering reference data for Ethanol Water Mixture Density in fluid mechanics.

Key Formulas

Reynolds Number

$Re = \frac{\rho v D}{\mu}$

Ratio of inertial to viscous forces — determines flow regime.

Bernoulli's Equation

$P + \frac{1}{2}\rho v^2 + \rho g h = \text{const}$

Conservation of energy for steady, inviscid, incompressible flow.

Continuity Equation

$A_1 v_1 = A_2 v_2$

Conservation of mass for incompressible flow.

Darcy-Weisbach

$\Delta P = f \frac{L}{D} \frac{\rho v^2}{2}$

Pressure drop due to friction in a pipe.

Variables

Symbol	Description	Unit
$Re$	Reynolds number	—
$\rho$	Fluid density	kg/m³
$v$	Flow velocity	m/s
$D$	Characteristic dimension	m
$\mu$	Dynamic viscosity	Pa·s
$P$	Pressure	Pa
$f$	Darcy friction factor	—

Data Table

11 rows

Density (kg/m³) of ethanol-water mixtures at various temperatures and mass concentrations.
Ethanol Weight(%)	Density @ 10°C(kg/m³)	Density @ 15°C(kg/m³)	Density @ 20°C(kg/m³)	Density @ 25°C(kg/m³)	Density @ 30°C(kg/m³)	Density @ 35°C(kg/m³)	Density @ 40°C(kg/m³)
0	1000	999	998	997	996	994	992
10	984	983	982	980	979	977	975
20	972	971	969	966	964	961	959
30	960	957	954	951	947	944	941
40	942	939	935	931	928	924	920
50	922	918	914	910	906	902	897
60	899	895	891	887	883	878	874
70	876	872	868	863	859	855	850
80	852	848	843	839	835	830	826
90	827	822	818	814	809	805	800
100	798	794	789	785	781	776	772

Source: engineeringtoolbox.com

Usage Notes

The ethanol weight percent (%) represents the mass of ethanol per total mass of the solution (mass ethanol / mass solution).
Density generally decreases with both increasing temperature and increasing ethanol concentration.
This data is essential for process engineering calculations involving mixing, storage, and transportation of ethanol-water solutions.

Interactive Charts

Density Ethanol-Water Mixture

References

Original Source

Source: engineeringtoolbox.com