Chemical Properties of Sulfur dioxide (CAS 7446-09-5)

Sulfur dioxide

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InChI
InChI=1S/O2S/c1-3-2
InChI Key
RAHZWNYVWXNFOC-UHFFFAOYSA-N
Formula
O2S
SMILES
O=S=O
Molecular Weight1
64.06
CAS
7446-09-5
Other Names
  • Fermenicide liquid
  • Fermenicide powder
  • Fermenticide liquid
  • SO2
  • SULFUROUS ACID ANHYDRIDE
  • SULFUROUS ANHYDRIDE
  • Schwefeldioxyd
  • Siarki dwutlenek
  • Sulfur dioxide (SO2)
  • Sulfur oxide
  • Sulfur oxide (SO2)
  • Sulfur superoxide
  • Sulfurous oxide
  • Sulphur dioxide
  • UN 1079
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Physical Properties

Property Value Unit Source
ω 0.2560 KDB
PAff 672.30 kJ/mol NIST
BasG [607.00; 643.30] kJ/mol Show Hide
BasG 643.30 kJ/mol NIST
BasG 622.00 kJ/mol NIST
BasG 607.00 kJ/mol NIST
μ 1.60 debye KDB
EA [1.00; 1.14] eV Show Hide
EA 1.11 ± 0.01 eV NIST
EA 1.10 ± 0.04 eV NIST
EA 1.10 ± 0.10 eV NIST
EA 1.10 ± 0.20 eV NIST
EA 1.05 eV NIST
EA 1.00 ± 0.10 eV NIST
EA 1.00 ± 0.05 eV NIST
EA 1.06 ± 0.10 eV NIST
EA 1.14 ± 0.15 eV NIST
Δf -300.40 kJ/mol KDB
Rg 1.6740 KDB
Δfgas [-297.10; -296.81] kJ/mol Show Hide
Δfgas -297.10 kJ/mol KDB
Δfgas -296.81 ± 0.20 kJ/mol NIST
Δfus 10.50 kJ/mol Joback Calculated Property
Δvap 33.94 kJ/mol Joback Calculated Property
IE [12.30; 12.54] eV Show Hide
IE 12.35 ± 0.00 eV NIST
IE 12.50 ± 0.10 eV NIST
IE 12.35 ± 0.00 eV NIST
IE 12.50 ± 0.30 eV NIST
IE 12.40 ± 0.20 eV NIST
IE 12.30 eV NIST
IE 12.31 eV NIST
IE 12.30 ± 0.01 eV NIST
IE 12.32 ± 0.01 eV NIST
IE 12.34 eV NIST
IE 12.34 ± 0.02 eV NIST
IE 12.50 eV NIST
IE 12.54 eV NIST
IE 12.50 eV NIST
log10WS 0.46 Crippen Calculated Property
logPoct/wat -0.670 Crippen Calculated Property
McVol 34.650 ml/mol McGowan Calculated Property
NFPA Health 2 KDB
Pc 7884.00 kPa KDB
Ptriple [1.67; 1.67] kPa Show Hide
Ptriple 1.67 kPa KDB
Ptriple 1.67 ± 0.01 kPa NIST
I [856.00; 882.00]   Show Hide
I 856.00 NIST
I 882.00 NIST
I 856.00 NIST
gas,1 bar 248.22 ± 0.05 J/mol×K NIST
Tboil 263.10 K KDB
Tc [430.34; 430.80] K Show Hide
Tc 430.80 K KDB
Tc 430.34 ± 0.40 K NIST
Tfus [197.60; 200.75] K Show Hide
Tfus 197.60 K KDB
Tfus 200.75 ± 0.50 K NIST
Ttriple [197.64; 197.68] K Show Hide
Ttriple 197.68 K KDB
Ttriple 197.64 ± 0.05 K NIST
Vc 0.122 m3/kmol KDB
Zc 0.2685310 KDB
Zra 0.27 KDB

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [37.64; 49.58] J/mol×K [245.78; 395.50] Show Hide
Cp,gas 37.64 J/mol×K 245.78 Joback Calculated Property
Cp,gas 40.24 J/mol×K 270.73 Joback Calculated Property
Cp,gas 42.58 J/mol×K 295.69 Joback Calculated Property
Cp,gas 44.67 J/mol×K 320.64 Joback Calculated Property
Cp,gas 46.52 J/mol×K 345.59 Joback Calculated Property
Cp,gas 48.16 J/mol×K 370.55 Joback Calculated Property
Cp,gas 49.58 J/mol×K 395.50 Joback Calculated Property
ΔvapH [24.90; 24.90] kJ/mol [231.50; 263.00] Show Hide
ΔvapH 24.90 kJ/mol 231.50 NIST
ΔvapH 24.90 kJ/mol 263.00 NIST
Pvap [1469.00; 5978.00] kPa [343.15; 413.15] Show Hide
Pvap 1479.00 kPa 343.15 Thermod...
Pvap 1469.00 kPa 343.15 Thermod...
Pvap 2883.00 kPa 373.15 Thermod...
Pvap 5836.00 kPa 413.15 Thermod...
Pvap 5978.00 kPa 413.15 Thermod...
ρl 1455.00 kg/m3 263.00 KDB

Correlations

Property Value Unit Temperature (K) Source
Pvap [1.62; 7832.71] kPa [197.67; 430.75] The Yaw... Show Hide
Equationln(Pvp) = A + B/(T + C)
Coefficient A1.48701e+01
Coefficient B-2.33358e+03
Coefficient C-3.55000e+01
Temperature range, min.197.67
Temperature range, max.430.75
Pvap 1.62 kPa 197.67 Calculated Property
Pvap 11.73 kPa 223.57 Calculated Property
Pvap 52.66 kPa 249.47 Calculated Property
Pvap 170.94 kPa 275.36 Calculated Property
Pvap 441.15 kPa 301.26 Calculated Property
Pvap 962.05 kPa 327.16 Calculated Property
Pvap 1847.48 kPa 353.06 Calculated Property
Pvap 3215.33 kPa 378.95 Calculated Property
Pvap 5177.56 kPa 404.85 Calculated Property
Pvap 7832.71 kPa 430.75 Calculated Property

Similar Compounds

SULFUR TRIOXIDE. Sulfur monoxide. Disulfur monoxide. Sulfuryl fluoride. Carbon monophosphide. bromine chloride. Magnesium monofluoride. silicon monoxide. DAl. Dicarbon. Aluminum hydride. Sulfuryl chloride fluoride. Thionyl fluoride. Thionyl chloride. Silica, vitreous.

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Mixtures

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Sources

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