Environmental Engineering Reference
In-Depth Information
TABLE 2.4
Properties of 1,4-Dioxane
Property
Value
Notes
Molecular weight
88.106 Da
Daltons
Density
1.028 g/cm
3
~8.6 lb/gallons at 20°C
Composition
C 54.53%; H 9.15%; O 36.32%
Boiling point
101.2°C
Range in citations: 101.1-101.3°C
Heat of vaporization
98.6 cal/g
Freezing point
11.85°C
Heat of fusion
33.8 cal/g
Specii c heat
36.01 cal/(mol K)
0.420 cal/g at 20°C
Vapor pressure
5.08 kPa at 25°C
38.09 mm Hg at 25°C
15.8 kPa at 50°C
29 mm Hg at 20°C
42.2 kPa at 75°C
97.2 kPa at 100°C
200 kPa at 125°C
Antoine vapor coefi cients
A
: 7.94016
P
0.13332210
[
A
−(
B
/(
C
+
T
))]
P
is vapor pressure (kPa) and
T
is temperature (°C); used
for determining estimates of vapor pressure at different
temperatures
=
B
: 1906.23
C
: 275.577
Vapor density
3.06
Air = 1; other citations: 3 and 3.3
Evaporation rate
2.42
Relative to butyl acetate = 1
Viscosity at 20°C
0.012 poise
Surface tension (pure liquid)
32.8 mN/m
36.9 dyne/cm at 25°C; 40 dyne/cm at 20°C
Refractive index (at 20°C)
1.4224
Auto-ignition temperature
180°C
Flash point
12°C
Closed cup method
Lower explosive limit
2%
Upper explosive limit
22%
Dielectric constant
2.209
Molar volume
85.8 cm
3
/mol at 25°C
Kinetic diameter
5.3 Å
Dipole
0.4 D
D
=
debyes; 1 D
=
1 × 10
-18
esu cm; esu
=
electrostatic units
of molecular charge; cm
intramolecular distance between
positive and negative charge in the molecule in centimeters
=
Polarity
16.4
Water = 100
Hildebrand solubility
parameter (δ)
10.13 cal
1/2
cm
-3/2
or 10 MPa
δ/MPa
1/2
= 2.0455 × δ/cal
1/2
cm
-3/2
Solubility
Miscible
Ultraviolet light absorption
maximum
180 nm
Acid dissociation constant
p
K
a
= -2.92
Sources:
Knovel, 2006,
Yaws' Handbook of Antoine Coefi cients for Vapor Pressure—Electronic Edition
.
http://www.knovel.
com
(accessed June 2006); Lide, D.R., 2007, In: D.R. Lide (ed.), CRC
Handbook of Chemistry and Physics, Internet
Version
2007, 87th Edition. Boca Raton, FL: Taylor & Francis; Mackay, D., Shiu, W.-Y., and Ma, K.-C., 1993,
Illustrated Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals: Volume III.
Volatile Organic Chemicals
. Boca Raton, FL: Lewis Publishers (Taylor & Francis); Merck and Company, Inc., 1983,
The Merck Index
. Rahway, NJ: Merck and Company, Inc.; Monneyron, P.E., Manero, M.-H., and Foussard, J.-N.,
2003,
Environmental Science and Technology
37(11): 2410-2414; Smallwood, I.M., 1996, Handbook of Organic
Solvent Properties. London: Arnold; Surprenant, K.S., 2005, In: W. Gerhartz, Y.S. Yamamoto, F.T. Campbell, et al.,
(Eds). Ullmann's Encyclopedia of Industrial Chemistry. Weinheim, Germany: Wiley Interscience; and Vinson, C.G.
and Martin, J.J., 1963, Journal of Chemical and Engineering Data (1): 74-75.
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