M-Xylene (data page)

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Template:Short description Template:Use dmy dates This page provides supplementary chemical data on m-Xylene.

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its directions.

Structure and properties

Template:Chembox header | Structure and properties
Index of refraction, nD 1.49722 at 20 °C
Abbe number ?
Dielectric constant,[1] εr 2.374 ε0 at 20 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?
Surface tension[2] 31.15 dyn/cm at 0 °C
28.90 dyn/cm at 20 °C
20.46 dyn/cm at 100 °C
Viscosity[3] 0.8059 mPa·s at 0 °C
0.6200 mPa·s at 20 °C
0.4970 mPa·s at 40 °C
0.3455 mPa·s at 80 °C
0.2418 mPa·s at 130 °C
Solubility[4] 0.203 g/L at 0 °C
0.161 g/L at 25 °C
0.22 g/L at 40 °C

Thermodynamic properties

Template:Chembox header | Phase behavior
Triple point 219.6 K (–53.5 °C), ? Pa
Critical point 618 K (345 °C), ? Pa
Std enthalpy change
of fusion, ΔfusHo 		11.57 kJ/mol
Std entropy change
of fusion, ΔfusSo 		51.36 J/(mol·K) at –47.88 °C
Std enthalpy change
of vaporization, ΔvapHo 		35.66 kJ/mol at 139.2 °C
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Template:Chembox header | Solid properties
Std enthalpy change
of formation, ΔfHosolid 		? kJ/mol
Standard molar entropy,
Sosolid 		? J/(mol K)
Heat capacity, cp ? J/(mol K)
Template:Chembox header | Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		–25.4 kJ/mol
Standard molar entropy,
Soliquid 		253.80 J/(mol K)
Enthalpy of combustion, ΔcHo –4549 kJ/mol
Heat capacity, cp 184.5 J/(mol K) at 25 °C
Template:Chembox header | Gas properties
Std enthalpy change
of formation, ΔfHogas 		17.2 kJ/mol
Standard molar entropy,
Sogas 		358.2 J/(mol K)
Heat capacity, cp 125.8 J/(mol K)
van der Waals' constants[5] a = 3076 L2 kPa/mol2
b = 0.1772 liter per mole

Vapor pressure of liquid

Template:Chembox header | P in mm Hg 1 10 40 100 400 760
Template:Chembox header | T in °C –6.9 28.3 55.3 76.8 116.7 139.1

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

log10 of m-Xylene vapor pressure. Uses formula: logePmmHg=loge(760101.325)−9.106679loge(T+273.15)−7556.611T+273.15+76.86698+5.403634×10−6(T+273.15)2 obtained from CHERIC[6]

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Distillation data

See also:

Vapor-liquid Equilibrium
for m-Xylene/Carbon tetrachloride[7]
P = 760 mm Hg
BP
Temp.
°C 		% by mole carbon tetrachloride
liquid vapor
137.0 1.8 5.8
131.9 6.5 21.9
126.8 11.4 35.6
122.0 16.4 46.5
118.1 20.8 55.2
113.9 25.8 62.6
110.2 30.6 68.7
106.4 35.7 73.9
102.8 41.2 78.8
102.3 41.9 79.6
98.1 48.8 84.3
94.1 56.2 88.0
90.6 63.5 91.1
87.5 70.4 93.5
84.6 77.5 95.5
82.1 84.3 97.1
79.7 91.1 98.4
77.5 97.7 99.6
   
Vapor-liquid Equilibrium
for m-Xylene/Toluene[7]
P = 760 mm Hg
BP
Temp.
°C 		% by mole toluene
liquid vapor
133.20 11.1 35.8
129.87 18.6 46.2
119.68 52.3 71.8
118.56 56.1 74.1
117.91 59.3 76.0
117.37 62.5 77.9
116.32 67.7 80.2
116.36 68.8 81.6
115.97 69.8 82.2
115.30 73.6 84.4
   
Vapor-liquid Equilibrium
for m-Xylene/Benzene[7]
P = 760 mm Hg
BP
Temp.
°C 		% by mole benzene
liquid vapor
124.80 10.2 44.7
118.94 17.5 59.8
115.40 21.4 65.5
112.30 28.4 73.2
106.35 34.0 78.0
102.08 42.7 83.3
99.15 49.4 86.5
96.70 59.5 90.3
90.89 68.1 93.0
 
Vapor-liquid Equilibrium
for m-Xylene/Aniline[7]
P = 745 mm Hg
BP
Temp.
°C 		% by mole m-xylene
liquid vapor
167 10.0 45.5
160 19.5 58.0
153 34.0 71.5
146 53.0 83.0
143 71.5 89.0
141 82.0 93.0

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Spectral data

Template:Chembox header | UV-Vis
λmax ? nm
Extinction coefficient, ε ?
Template:Chembox header | IR
Major absorption bands ? cm−1
Template:Chembox header | NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
Template:Chembox header | MS
Masses of
main fragments 		 

Template:Chemical data page general note

References

Template:Reflist Template:Cite journal

  1. ↑ CRC Handbook of Chemistry and Physics, 44th ed. pp 2611–2620
  2. ↑ Lange's Handbook of Chemistry, 10th ed. pp 1661–1663
  3. ↑ Lange's Handbook of Chemistry, 10th ed. pp 1669–1674
  4. ↑ CRC Handbook of Chemistry and Physics, 85th ed. p 8-111
  5. ↑ Lange's Handbook of Chemistry, 10th ed, pp 1522–1524
  6. ↑ Template:Cite web
  7. ↑ 7.0 7.1 7.2 7.3 Template:Cite web
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