S2

Click on the icon info to get details.

Species data

Common Formula	S2
Stoichiometric Formula	S2
Name	Molecular sulphur
Mass	63.94414 a.m.u
Charge	0
CAS	23550-45-0
Inchi	InChI=1S/S2/c1-2
InchiKey	MAHNFPMIPQKPPI-UHFFFAOYSA-N
State	Ground State

Search all reactions with S2

KIDA S2

ISM Abundance

log₁₀ Abundance	Reference	Source Name	Source Type	Link

Polarizability

Evaluation	Definition	Value (Å³)	Method	Origin	Reference
	total	4.791	Calculations	Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE

Definition: total Value (Å³): 4.791 Method: Calculations Origin: Database : NIST COMPUTATIONAL CHEMISTRY COMPARISON AND BENCHMARK DATABASE Reference:

Dipole moment

Evaluation	Value (D)	Method	Origin	Reference
	0	N/A	Bibliography	Woon, D. E. et al. ;2009;Astrophysical Journal Supplement Series ;185,273-288

Value (D): 0 Method: N/A Origin: Bibliography Reference: Woon, D. E. et al. ;2009;Astrophysical Journal Supplement Series ;185,273-288

Enthalpy of formation

Evaluation	T (K)	Value (kJ.mol^-1)	Method	Origin	Reference
	0	128.292 ±0.3	Reviews and Evaluations	Database : Burcat
	298	128.6 ±0.3	Reviews and Evaluations	Database : Burcat
	298	128.6 ±0.3	Measurements	Database : CCCBDB (http://cccbdb.nist.gov/)
	0	128.29 ±0.3	Measurements	Database : CCCBDB (http://cccbdb.nist.gov/)

T (K): 0 Value (kJ.mol^-1) : 128.292 ±0.3 Method: Reviews and Evaluations Origin: Other database Reference:
T (K): 298 Value (kJ.mol^-1) : 128.6 ±0.3 Method: Reviews and Evaluations Origin: Other database Reference:
T (K): 298 Value (kJ.mol^-1) : 128.6 ±0.3 Method: Measurements Origin: Other database Reference:
T (K): 0 Value (kJ.mol^-1) : 128.29 ±0.3 Method: Measurements Origin: Other database Reference:

Desorption energy

Evaluation	E_mean (K)	E_min (K)	E_max (K)	Pre-exponential factor (s^-1)	Order factor	Method	Origin	Reference	Type of surface	Description
	2200	0	0	0.00E+0	1	Estimation	Database : OSU		H2O	This binding energy was listed in the original OSU gas-grain code from Eric Herbst group in 2006. Energy of S+S The pre-exponential factor is not given. It can be computed using the formula given in Hasegawa et al. (1992).

E_mean (K): 2200 E _min (K): 0 E _max (K): 0 Pre-exponential factor (s^-1): 0.00E+0 Method: Estimation Origin: Other database Reference: Type of surface: H2O Description: This binding energy was listed in the original OSU gas-grain code from Eric Herbst group in 2006. Energy of S+S The pre-exponential factor is not given. It can be computed using the formula given in Hasegawa et al. (1992). Evaluation:

Diffusion energy

No data