Melting Points and Heat of Fusion

Substance	Melting point K	Melting point °C	Heat of fusion (10³ J/kg)
Helium	3.5	-269.65	5.23
Hydrogen	13.84	-259.31	58.6
Nitrogen	63.18	-209.97	25.5
Oxygen	54.36	-218.79	13.8
Ethyl alcohol	159	-114	104.2
Mercury	234	-39	11.8
Water	273.15	0.00	334
Sulfur	392	119	38.1
Lead	600.5	327.3	24.5
Antimony	903.65	630.50	165
Silver	1233.95	960.80	88.3
Gold	1336.15	1063.00	64.5
Copper	1356	1083	134

*From Young, Hugh D., University Physics, 7th Ed. Table 15-4.

Discussion of heat of fusion

Index

Tables

Reference
Young
Ch 15.

HyperPhysics***** Thermodynamics

Boiling Points and Heat of Vaporization

Substance	Boiling point K	Boiling point °C	Heat of vaporization (10³ J/kg)
Helium	4.216	-268.93	20.9
Hydrogen	20.26	-252.89	452
Nitrogen	77.34	-195.81	201
Oxygen	90.18	-182.97	213
Ethyl alcohol	351	78	854
Mercury	630	357	272
Water	373.15	100.00	2256
Sulfur	717.75	444.60	326
Lead	2023	1750	871
Antimony	1713	1440	561
Silver	2466	2193	2336
Gold	2933	2660	1578
Copper	2840	2567	5069

*From Young, Hugh D., University Physics, 7th Ed. Table 15-4.

More data from Engineering Toolbox

Discussion of heat of vaporization

Index

Tables

Reference
Young
Ch 15.

HyperPhysics***** Thermodynamics

Temperature Standard Points

Substance	State	Temperature K
Hydrogen	Triple point	13.81
Hydrogen	Boiling point	20.28
Neon	Boiling point	27.102
Oxygen	Triple point	54.361
Argon	Triple point	83.798
Oxygen	Boiling point	90.188
Water	Triple point	273.16
Water	Boiling point	373.125
Tin	Melting point	505.074
Zinc	Melting point	692.664
Silver	Melting point	1235.08
Gold	Melting point	1337.58

Primary fixed points in the international temperature scale.

From Halliday and Resnick

Discussion of standard temperatures

Index

Tables

Reference
Halliday & Resnick.

HyperPhysics***** Thermodynamics

Triple Point Data

Substance	Temperature K	Pressure 10⁵Pa
Helium-4 (l-point)	2.17	0.0507
Hydrogen	13.84	0.0704
Deuterium	18.63	0.171
Neon	24.57	0.432
Oxygen	54.36	0.00152
Nitrogen	63.18	0.125
Ammonia	195.40	0.0607
Sulfur dioxide	197.68	0.00167
Carbon dioxide	216.55	5.17
Water	273.16	0.00610

From Young, University Physics, 8th Ed., Table 16-3

Discussion of standard temperatures

Triple-state on PvT surface

Index

Tables

Reference
Halliday & Resnick.

HyperPhysics***** Thermodynamics

Latent Heats of Vaporization

Substance	kJ/Kg	BTU/lb	calories/g
Acetic acid	402	173	96.0
Acetone	518	223	124
Alcohol	896	385	214
Alcohol, ethyl (ethanol)	846	364	202
Alcohol, methyl (methanol alcohol, wood alcohol, wood naphtha or wood spirits)	1100	473	263
Alcohol, propyl	779	335	186
Ammonia	1369	589	327
Aniline	450	193	107.5
Benzene	390	168	93.2
Bromine	193	83	46.1
Carbon bisulphide	372	160	89
Carbon dioxide	574	247	137
Carbon disulphide	351	151	83.9
Carbon tetrachloride	194	83	46
Chlorine	293	126	70
Chloroform	247	106	59
Decane	263	113	62.8
Dodecane	256	110	61.2
Ether	377	162	90
Ethylene glycol	800	344	191
Trichlorofluoromethane refrigerant R-11	180	77	43
Dichlorodifluoromethane refrigerant R-12	165	71	39.4
Chlorodifluoromethane refrigerant R-22	232	100	55.4
Glycerine	974	419	233
Helium	21	9	5
Heptane	318	137	76
Hexane	365	157	87.2
Hydrogen	461	198	110
Iodine	164	71	39
Kerosene	251	108	60
Mercury	295	127	70.5
Methyl chloride	406	174.6	97
Nitrogen	199	86	47.5
Octane	298	128	71
Oxygen	214	92	51
Propane	428	184	102
Propylene	342	147	81.7
Propylene glycol	914	393	218
Sulphur	1510	650	360.7
Sulfur dioxide	381	164	91
Toluene	351	151	83.9
Turpentine	293	126	70
Water	2257	970.4	539

Data from The Engineering Toolbox

The latent heat of evaporation is based on fluid boiling point temperature at atmospheric pressure.

HyperPhysics***** Thermodynamics