Physical Properties
Property
Value
Unit
Source
Δc H°solid
[-4200.11; -4199.10]
kJ/mol
Δc H°solid
-4200.11 ± 0.67
kJ/mol
NIST
Δc H°solid
-4199.10
kJ/mol
NIST
Δf H°gas
[197.90; 199.00]
kJ/mol
Δf H°gas
199.00 ± 3.00
kJ/mol
NIST
Δf H°gas
197.90
kJ/mol
NIST
Δf H°solid
[123.00; 124.10]
kJ/mol
Δf H°solid
124.10 ± 0.75
kJ/mol
NIST
Δf H°solid
123.00
kJ/mol
NIST
Δsub H°
[74.90; 79.60]
kJ/mol
Δsub H°
79.60 ± 0.40
kJ/mol
NIST
Δsub H°
75.00 ± 3.00
kJ/mol
NIST
Δsub H°
74.90
kJ/mol
NIST
Δsub H°
74.90 ± 2.90
kJ/mol
NIST
IE
[8.26; 8.55]
eV
IE
8.26
eV
NIST
IE
8.55
eV
NIST
IE
8.53
eV
NIST
log 10 WS
0.73
Crippen Calculated Property
log Poct/wat
-1.020
Crippen Calculated Property
McVol
102.740
ml/mol
McGowan Calculated Property
Inp
[206.78; 1220.00]
Inp
1204.00
NIST
Inp
1205.00
NIST
Inp
1220.00
NIST
Inp
1210.00
NIST
Inp
206.78
NIST
I
[2014.00; 2014.00]
I
2014.00
NIST
I
2014.00
NIST
I
2014.00
NIST
S°solid,1 bar
[163.38; 163.38]
J/mol×K
S°solid,1 bar
163.38
J/mol×K
NIST
S°solid,1 bar
163.38
J/mol×K
NIST
Temperature Dependent Properties
Property
Value
Unit
Temperature (K)
Source
Cp,solid
[152.29; 152.29]
J/mol×K
[298.15; 298.15]
Cp,solid
152.29
J/mol×K
298.15
NIST
Cp,solid
152.29
J/mol×K
298.15
NIST
Δsub H
[74.10; 78.80]
kJ/mol
[289.50; 375.50]
Δsub H
74.10 ± 0.80
kJ/mol
289.50
NIST
Δsub H
78.80
kJ/mol
315.00
NIST
Δsub H
77.70 ± 0.40
kJ/mol
358.50
NIST
Δsub H
76.80
kJ/mol
375.50
NIST
Correlations
Property
Value
Unit
Temperature (K)
Source
Pvap
[7.15e-05; 2.87]
kPa
[298.15; 453.15]
KDB Vap...
Equation ln(Pvp) = A + B/T + C*ln(T) + D*T^2 Coefficient A 2.14393e+01 Coefficient B -9.23798e+03 Coefficient C -2.54812e-05 Coefficient D 3.10254e-11 Temperature range, min. 298.15
Temperature range, max. 453.15
Pvap
7.15e-05
kPa
298.15
Calculated Property
Pvap
3.89e-04
kPa
315.37
Calculated Property
Pvap
1.77e-03
kPa
332.59
Calculated Property
Pvap
6.95e-03
kPa
349.82
Calculated Property
Pvap
0.02
kPa
367.04
Calculated Property
Pvap
0.07
kPa
384.26
Calculated Property
Pvap
0.21
kPa
401.48
Calculated Property
Pvap
0.54
kPa
418.71
Calculated Property
Pvap
1.28
kPa
435.93
Calculated Property
Pvap
2.87
kPa
453.15
Calculated Property
Similar Compounds
Find more compounds similar to Methenamine .
Mixtures
Sources
KDB Vapor Pressure Data
Crippen Method
Crippen Method
Thermochemistry of hexamethylenetetramine pentaborate
Solubility of 1,3,5,7-tetra azatricyclo[3.3.1.13,7]decane (HMT) in water from 275.15K to 313.15K
Density, Speed of Sound, Viscosity, and Surface Tension of Hexamethylenetetramine Aqueous Solutions from T = (293.15 to 323.15) K
Densities and Viscosities of Binary Mixtures of Acetic Acid with Acetic Anhydride and Methenamine at Different Temperatures
Solubility of Hexamethylenetetramine in a Pure Water, Methanol, Acetic Acid, and Ethanol + Water Mixture from (299.38 to 340.35) K
Heat Capacities of Binary Mixtures of Acetic Acid with Acetic Anhydride and Methenamine at Different Temperatures
KDB
McGowan Method
NIST Webbook
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