ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ

ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ (Hydrogen sulfide)
Ball-and-stick model of hydrogen sulfide	Spacefill model of hydrogen sulfide
Names
	ᱥᱤᱥᱴᱟᱢᱮᱴᱤᱠ IUPAC ᱧᱩᱛᱩᱢ Hydrogen sulfide
	Other names Dihydrogen monosulfide; Dihydrogen sulfide; Sewer gas; Sulfane; Sulfurated hydrogen; Sulfureted hydrogen; Sulfuretted hydrogen; Sulfur hydride; Hydrosulfuric acid; Hydrothionic acid; Thiohydroxic acid; Sulfhydric acid;
Identifiers
CAS Number	7783-06-4 ;
3D model (JSmol)	Interactive image;
3DMet	B01206 Archived ᱒᱐᱑᱙-᱐᱔-᱐᱗ at the Wayback Machine.
Beilstein Reference	3535004
ChEBI	CHEBI:16136 ;
ChEMBL	ChEMBL1200739 ;
ChemSpider	391 ;
ECHA InfoCard	100.029.070
EC Number	231-977-3
Gmelin Reference	303
KEGG	C00283 ;
MeSH	Hydrogen+sulfide
PubChem <abbr title="<nowiki>Compound ID</nowiki>">CID	402;
RTECS number	MX1225000
UNII	YY9FVM7NSN Archived ᱒᱐᱑᱖-᱐᱓-᱐᱕ at the Wayback Machine. ;
UN number	1053
CompTox Dashboard (<abbr title="<nowiki>U.S. Environmental Protection Agency</nowiki>">EPA)	DTXSID4024149 Archived ᱒᱐᱒᱒-᱐᱓-᱐᱙ at the Wayback Machine. ;
	InChI InChI=1S/H2S/h1H2 Key: RWSOTUBLDIXVET-UHFFFAOYSA-N ; InChI=1/H2S/h1H2 Key: RWSOTUBLDIXVET-UHFFFAOYAJ;
	SMILES [H]S[H];
Properties
Chemical formula	H2S
Molar mass	34.08 g·mol−1
Appearance	Colorless gas
Odor	Pungent, like that of rotten eggs
Density	1.363 g dm−3
Melting point	−82 °C (−116 °F; 191 K)
Boiling point	−60 °C (−76 °F; 213 K)
Solubility in water	4 g dm−3 (at 20 °C)
Vapor pressure	1740 kPa (at 21 °C)
Acidity (pKa)	7.0
Conjugate acid	Sulfonium
Conjugate base	Bisulfide
Magnetic susceptibility (χ)	−25.5·10−6 cm3/mol
Refractive index (nD)	1.000644 (0 °C)
Structure
Point group	C2v
Molecular shape	Bent
Dipole moment	0.97 D
Thermochemistry
Heat capacity (C)	1.003 J K−1 g−1
Std molar; ; entropy (So298)	206 J mol−1 K−1
Std enthalpy of; ; formation (ΔfH⦵298)	−21 kJ mol−1
Hazards
Main hazards	Flammable and highly toxic
EU classification (DSD) (outdated)	F+ T+ N
R-phrases (outdated)	R12, R26, R50
S-phrases (outdated)	(S1/2), S9, S16, S36, S38, S45, S61
NFPA 704	<span style="color:black;" title="Flammability code 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g., propane">4</span> <span style="color:black;" title="Health code 4: Very short exposure could cause death or major residual injury. E.g., VX gas">4</span> <span style="color:black;" title="Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen">0</span>
Flash point	−82.4 °C (−116.3 °F; 190.8 K)
Autoignition<br><br>temperature	232 °C (450 °F; 505 K)
Explosive limits	4.3–46%
	Lethal dose or concentration (LD, LC):
LC50 (median concentration)	713 ppm (rat, 1 hr); 673 ppm (mouse, 1 hr); 634 ppm (mouse, 1 hr); 444 ppm (rat, 4 hr);
LCLo (lowest published)	600 ppm (human, 30 min); 800 ppm (human, 5 min);
	US health exposure limits (NIOSH):
PEL (Permissible)	C 20 ppm; 50 ppm [10-minute maximum peak]
REL (Recommended)	C 10 ppm (15 mg/m3) [10-minute]
IDLH (Immediate danger)	100 ppm
Related compounds
Related hydrogen chalcogenides	Water; Hydrogen selenide; Hydrogen telluride; Hydrogen polonide; Hydrogen disulfide; Sulfanyl;
Related compounds	Phosphine
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	verify (what is ?)
	Infobox<span typeof="mw:Entity"> </span>references

ᱦᱟᱭᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ ᱢᱤᱫ ᱨᱟᱥᱟᱭᱱᱤᱠ ᱭᱚᱣᱜᱤᱠ ᱥᱟᱶ ᱯᱷᱚᱨᱢᱩᱞᱟ H
₂S ᱠᱟᱱᱟ᱾ H
₂S ᱫᱚ ᱵᱷᱚᱞᱠᱟᱱᱤᱠ ᱜᱮᱥ, ᱱᱮᱪᱩᱨᱟᱞ ᱜᱮᱥ ᱟᱨ ᱫᱟᱜ ᱨᱮᱱᱟᱜ ᱯᱷᱮᱰᱟᱛ ᱠᱷᱚᱱ ᱧᱟᱢᱚᱜᱼᱟ ᱾ ^[᱙] ᱢᱟᱹᱱᱢᱤᱭᱟᱜ ᱦᱚᱲᱢᱚ ᱦᱚᱸ ᱱᱟᱥᱮ ᱩᱰᱤᱡ H
₂S ᱮ ᱛᱮᱭᱟᱨᱮᱫᱼᱟ ᱟᱨ ᱥᱤᱜᱽᱱᱟᱞᱤᱝ ᱢᱚᱞᱤᱠᱩᱞ (signaling molecule) ᱞᱮᱠᱟᱛᱮ ᱵᱮᱵᱷᱟᱨᱮᱫᱼᱟ ᱾^[᱑᱐]

ᱱᱚᱶᱟ ᱫᱚ ᱵᱮᱨᱚᱝ ᱪᱟᱞᱠᱚᱡᱮᱱ ᱦᱟᱭᱰᱨᱟᱭᱤᱰ (chalcogen hydride) ᱜᱮᱥ ᱥᱟᱶᱛᱮ ᱥᱮᱭᱟ ᱥᱤᱢᱵᱤᱞᱤ ᱞᱮᱠᱟ ᱥᱚ ᱣᱟᱱᱟ ᱾ ᱱᱚᱶᱟ ᱫᱚ ᱟᱹᱰᱤ ᱵᱤᱥ ᱜᱮᱭᱟ, ᱠᱨᱚᱡᱤᱵᱽ ᱟᱨ ᱞᱟᱜᱮ ᱟᱛᱟᱨᱚᱜᱼᱟ ᱾^[᱑᱑]

ᱥᱩᱭᱰᱤᱥ ᱨᱤᱱᱤᱡ ᱥᱟᱬᱮᱥᱤᱭᱟᱹ ᱠᱟᱨᱞ ᱣᱤᱞᱦᱮᱞᱢ ᱥᱮᱞᱮ (Carl Wilhelm Scheele) ᱱᱚᱶᱟ ᱠᱮᱢᱤᱠᱟᱞ ᱠᱚᱢᱯᱚᱡᱤᱥᱚᱱ ᱫᱚᱭ ᱧᱟᱢ ᱚᱰᱚᱠ ᱞᱮᱫ ᱛᱟᱦᱮᱸᱫ ᱑᱗᱗᱗ ᱥᱟᱞᱮ ᱨᱮ ᱾

ᱜᱩᱱ

ᱥᱤᱨᱡᱟᱹᱣ

FeS + 2 HCl → FeCl₂ + H₂S

ᱱᱤᱴᱨᱮᱴ ᱢᱮᱥᱟ: ᱠᱟᱞᱥᱤᱭᱚᱢ ᱱᱟᱭᱴᱨᱮ ᱫᱚ ᱞᱤᱸᱡᱤᱱ ᱫᱟᱜ ᱨᱮ ᱦᱟᱭᱰᱨᱚᱜᱮᱱ ᱥᱚᱞᱯᱷᱟᱭᱤᱰ ᱛᱮᱭᱟᱨᱚᱜ ᱠᱷᱚᱱ ᱵᱟᱧᱪᱟᱣ ᱞᱟᱹᱜᱤᱫ ᱵᱮᱵᱷᱟᱨ ᱜᱟᱱᱚᱜᱼᱟ ᱾

ᱯᱷᱩᱭᱤᱞ ᱜᱮᱥ ᱠᱷᱚᱱ ᱚᱪᱚᱜ

ᱱᱚᱸᱰᱮ ᱦᱚᱸ ᱧᱮᱞᱢᱮ

ᱥᱟᱹᱠᱷᱭᱟᱹᱛ

↑ "Hydrogen Sulfide - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information.
↑ Perrin, D.D. (1982). Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution (2nd ed.). Oxford: Pergamon Press.
↑ Bruckenstein, S.; Kolthoff, I.M., in Kolthoff, I.M.; Elving, P.J. Treatise on Analytical Chemistry, Vol. 1, pt. 1; Wiley, NY, 1959, pp. 432–433.
↑ Patnaik, Pradyot (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 978-0-07-049439-8.
1 2 Zumdahl, Steven S. (2009). Chemical Principles (6th ed.). Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.
↑ "Hydrogen sulfide" Archived ᱒᱐᱑᱓-᱐᱕-᱓᱐ at the Wayback Machine.. npi.gov.au.
1 2 "Hydrogen sulfide". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
1 2 3 NIOSH Pocket Guide to Chemical Hazards. "#0337". National Institute for Occupational Safety and Health (NIOSH).
↑ "Hydrogen Sulphide In Well Water". Retrieved 4 September 2018.
↑ Bos, E. M; Van Goor, H; Joles, J. A; Whiteman, M; Leuvenink, H. G (2015). "Hydrogen sulfide: Physiological properties and therapeutic potential in ischaemia". British Journal of Pharmacology. 172 (6): 1479–1493. doi:10.1111/bph.12869. PMC 4369258. PMID 25091411.
↑ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. {{cite book}}: Cite has empty unknown parameter: |name-list-format= (help); Invalid |ref=harv (help)

[1] "Hydrogen Sulfide - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information.

[2] Perrin, D.D. (1982). Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution (2nd ed.). Oxford: Pergamon Press.

[3] Bruckenstein, S.; Kolthoff, I.M., in Kolthoff, I.M.; Elving, P.J. Treatise on Analytical Chemistry, Vol. 1, pt. 1; Wiley, NY, 1959, pp. 432–433.

[4] Patnaik, Pradyot (2002). Handbook of Inorganic Chemicals. McGraw-Hill. ISBN 978-0-07-049439-8.

[b1-5] 1 2 Zumdahl, Steven S. (2009). Chemical Principles (6th ed.). Houghton Mifflin Company. p. A23. ISBN 978-0-618-94690-7.

[6] "Hydrogen sulfide" Archived ᱒᱐᱑᱓-᱐᱕-᱓᱐ at the Wayback Machine.. npi.gov.au.

[IDLH-7] 1 2 "Hydrogen sulfide". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[PGCH-8] 1 2 3 NIOSH Pocket Guide to Chemical Hazards. "#0337". National Institute for Occupational Safety and Health (NIOSH).

[9] "Hydrogen Sulphide In Well Water". Retrieved 4 September 2018.

[10] Bos, E. M; Van Goor, H; Joles, J. A; Whiteman, M; Leuvenink, H. G (2015). "Hydrogen sulfide: Physiological properties and therapeutic potential in ischaemia". British Journal of Pharmacology. 172 (6): 1479–1493. doi:10.1111/bph.12869. PMC 4369258. PMID 25091411.

[11] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. {{cite book}}: Cite has empty unknown parameter: |name-list-format= (help); Invalid |ref=harv (help)

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