Propane Butane Mixture - Evaporation Pressure

Evaporation pressure of propane butane mixture vs. temperature. This tool provides vapor pressure data for mixtures of propane (C3H8) and butane (C4H10) at different temperatures and composition ratios.

Calculator

Inputs

Temperature (°F)

Propane Content (%)

Results

Vapor Pressure (Gauge)-- psig

Temperature (°F)	100% Propane	70% Propane / 30% Butane	50% Propane / 50% Butane	30% Propane / 70% Butane	100% Butane
-44	0	0	0	0	0
-30	6.8	0	0	0	0
-20	11.5	4.7	0	0	0
-10	17.5	9	3.5	0	0
0	24.5	15	7.6	2.3	0
10	34	20.5	12.3	5.9	0
20	42	28	17.8	10.2	0
30	53	36.5	24.5	15.4	0
40	65	46	32.4	21.5	3.1
50	78	56	41	28.5	6.9
60	93	68	50	36.5	11.5
70	110	82	61	45	17
80	128	96	74	54	23
90	150	114	88	66	30
100	177	134	104	79	38
110	204	158	122	93	47