Propane C3H8 Density Specific Weight Temperature Pressure

Reference data and engineering information about propane c3h8 density specific weight temperature pressure for thermodynamics applications.

propaneC3H8densityspecificData Table

Overview

Engineering reference data for Propane C3H8 Density Specific Weight Temperature Pressure in thermodynamics.

Key Formulas

First Law

$\Delta U = Q - W$

Energy is conserved — heat added minus work done.

Ideal Gas Law

$PV = nRT$

Relates pressure, volume, and temperature of an ideal gas.

Carnot Efficiency

$\eta = 1 - T_C/T_H$

Maximum efficiency between two temperatures.

Variables

Symbol	Description	Unit
$U$	Internal energy	J
$Q$	Heat	J
$W$	Work	J
$P$	Pressure	Pa
$V$	Volume	m³
$T$	Temperature	K

Propane Density and Specific Weight Data

The following table provides comprehensive density and specific weight values for propane across liquid and gas phases at various temperatures and pressures.

28 rows

Propane density and specific weight at saturation conditions (liquid-gas equilibrium)
State	Temperature(K)	Temperature(°C)	Temperature(°F)	Pressure(bara)	Density(kg/m³)	Density(lbm/ft³)	Specific Weight(N/m³)	Specific Weight(lbf/ft³)
Liquid	85.53	-187.68	-305.82	1.7E-09	733.1	45.77	7189	45.8
Liquid	100	-173	-280	2.5E-07	718.2	44.83	7043	44.8
Liquid	130	-143	-226	0.000176	687.7	42.93	6744	42.9
Liquid	160	-113	-172	0.00850	657.2	41.03	6445	41.0
Liquid	190	-83.2	-118	0.1055	626.0	39.08	6139	39.1
Liquid	220	-53.2	-63.7	0.6058	593.5	37.05	5820	37.0
Liquid	250	-23.2	-9.7	2.180	558.4	34.86	5476	34.9
Liquid	280	6.9	44.3	5.817	519.2	32.41	5092	32.4
Liquid	310	36.9	98.3	12.73	473.0	29.53	4638	29.5
Liquid	320	46.9	116	15.99	454.9	28.40	4461	28.4
Liquid	340	66.9	152	24.32	411.9	25.71	4039	25.7
Liquid	355	81.9	179	32.43	366.7	22.89	3596	22.9
Liquid	360	86.9	188	35.55	345.6	21.58	3389	21.6
Liquid	369.83	96.68	206.02	42.48	220.5	13.76	2162	13.8
Gas, saturated	85.53	-187.68	-305.82	1.7E-09	1.10E-08	6.87E-10	1.1E-07	6.9E-10
Gas, saturated	100	-173	-280	2.5E-07	1.34E-06	8.39E-08	1.3E-05	8.4E-08
Gas, saturated	130	-143	-226	0.000176	7.18E-04	4.48E-05	0.0070	4.5E-05
Gas, saturated	160	-113	-172	0.00850	0.02819	0.002	0.276	0.0018
Gas, saturated	190	-83.2	-118	0.1055	0.2964	0.01850	2.91	0.0185
Gas, saturated	220	-53.2	-63.7	0.6058	1.498	0.09352	14.7	0.094
Gas, saturated	250	-23.2	-9.7	2.180	4.936	0.3082	48.4	0.308
Gas, saturated	280	6.9	44.3	5.817	12.57	0.7845	123	0.784
Gas, saturated	310	36.9	98.3	12.73	27.88	1.741	273	1.74
Gas, saturated	320	46.9	116	15.99	35.74	2.231	350	2.23
Gas, saturated	340	66.9	152	24.32	58.92	3.678	578	3.68
Gas, saturated	355	81.9	179	32.43	89.30	5.575	876	5.58
Gas, saturated	360	86.9	188	35.55	105.4	6.580	1034	6.58
Gas, saturated	369.83	96.68	206.02	42.48	220.5	13.76	2162	13.8

Source: engineeringtoolbox.com

Critical Point and Phase Behavior

Property	Value
Critical Temperature	369.83 K (96.68°C / 206.02°F)
Critical Pressure	42.48 bara (616.1 psia)
Critical Density	220.5 kg/m³ (5.000 mol/dm³)
Boiling Point	231 K (-42.2°C / -44°F) at 1 atm

Key Note: The density of liquid propane is nearly constant for all pressures up to 100 bara and 50°C (100°F). For most practical applications, the liquid density at equilibrium pressure (saturation conditions) can be used as a reliable approximation.

Density Unit Conversions

From kg/m³

To Unit	Multiply by
g/l	1
g/cm³	0.001
kg/l	0.001
lb/ft³	0.06243
lb/in³	3.6127 × 10⁻⁵
lb/gal (US liq)	0.008345
lb/gal (UK)	0.010022
oz/ft³	0.99885
oz/in³	0.0005780
slug/ft³	0.0019403
ton(long)/yd³	0.0007525

From lb/ft³

To Unit	Multiply by
kg/m³	16.01845
g/cm³	0.01602
lb/gal (US liq)	0.1349
lb/gal (UK)	0.1605
oz/gal (US liq)	2.1389
oz/gal (UK)	2.5687
lb/yd³	27
lb/in³	0.0005787

For additional propane thermophysical properties at varying conditions, see:

Dynamic and kinematic viscosity
Prandtl number
Specific heat (heat capacity)
Thermal conductivity
Thermal diffusivity