ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ

ᱣᱤᱠᱤᱯᱤᱰᱤᱭᱟ ᱠᱷᱚᱱ
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ᱦᱟᱭᱤᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ (Hydrogen sulfide)
Skeletal formula of hydrogen sulfide with two dimensions
Ball-and-stick model of hydrogen sulfide
Spacefill model of hydrogen sulfide
Names
ᱥᱤᱥᱴᱟᱢᱮᱴᱤᱠ IUPAC ᱧᱩᱛᱩᱢ
Hydrogen sulfide[᱑]
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
3D model (JSmol)
3DMet B01206
3535004
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.029.070
EC Number 231-977-3
303
KEGG
MeSH Hydrogen+sulfide
PubChem <abbr title="<nowiki>Compound ID</nowiki>">CID
RTECS number MX1225000
UNII
UN number 1053
CompTox Dashboard (<abbr title="<nowiki>U.S. Environmental Protection Agency</nowiki>">EPA)
Properties
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)
4 g dm−3 (at 20 °C)
Vapor pressure 1740 kPa (at 21 °C)
Acidity (pKa) 7.0[᱒][᱓]
Conjugate acid Sulfonium
Conjugate base Bisulfide
−25.5·10−6 cm3/mol
1.000644 (0 °C)[᱔]
Structure
C2v
Bent
0.97 D
Thermochemistry
1.003 J K−1 g−1
206 J mol−1 K−1[᱕]
−21 kJ mol−1[᱕]
Hazards
Main hazards Flammable and highly toxic
Extremely Flammable F+ Very Toxic T+ Dangerous for the Environment (Nature) N
R-phrases (outdated) R12, R26, R50
S-phrases (outdated) (S1/2), S9, S16, S36, S38, S45, S61
NFPA 704
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., propaneHealth code 4: Very short exposure could cause death or major residual injury. E.g., VX gasReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
<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) [᱖]
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)[᱗]
LCLo (lowest published)
  • 600 ppm (human, 30 min)
  • 800 ppm (human, 5 min)[᱗]
US health exposure limits (NIOSH):
PEL (Permissible)
C 20 ppm; 50 ppm [10-minute maximum peak][᱘]
REL (Recommended)
C 10 ppm (15 mg/m3) [10-minute][᱘]
IDLH (Immediate danger)
100 ppm[᱘]
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).
☒N verify (what is ☑Y☒N ?)
Infobox<span typeof="mw:Entity"> </span>references

ᱦᱟᱭᱰᱨᱚᱡᱟᱱ ᱥᱟᱞᱯᱷᱟᱭᱤᱰ ᱢᱤᱫ ᱨᱟᱥᱟᱭᱱᱤᱠ ᱭᱚᱣᱜᱤᱠ ᱥᱟᱶ ᱯᱷᱚᱨᱢᱩᱞᱟ H
2
S
ᱠᱟᱱᱟ᱾ H
2
S
ᱫᱚ ᱵᱷᱚᱞᱠᱟᱱᱤᱠ ᱜᱮᱥ, ᱱᱮᱪᱩᱨᱟᱞ ᱜᱮᱥ ᱟᱨ ᱫᱟᱜ ᱨᱮᱱᱟᱜ ᱯᱷᱮᱰᱟᱛ ᱠᱷᱚᱱ ᱧᱟᱢᱚᱜᱼᱟ ᱾ [᱙] ᱢᱟᱹᱱᱢᱤᱭᱟᱜ ᱦᱚᱲᱦᱢᱚ ᱦᱚᱸ ᱱᱟᱥᱮ ᱩᱰᱤᱡ H
2
S
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 ᱥᱤᱞᱤ (Carl Wilhelm Scheele) ᱱᱚᱶᱟ ᱠᱮᱢᱤᱠᱟᱞ ᱠᱚᱢᱯᱚᱡᱤᱥᱚᱱ ᱫᱚᱭ ᱧᱟᱢ ᱚᱰᱚᱠ ᱞᱮᱫ ᱛᱟᱦᱮᱸᱫ ᱑᱗᱗᱗ ᱥᱟᱞᱮ ᱨᱮ ᱾

ᱜᱩᱱ[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]

ᱥᱤᱨᱡᱟᱹᱣ[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]

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[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]

ᱱᱚᱸᱰᱮ ᱦᱚᱸ ᱧᱮᱞᱢᱮ[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]

ᱥᱟᱹᱠᱷᱭᱟᱹᱛ[ᱥᱟᱯᱲᱟᱣ | ᱯᱷᱮᱰᱟᱛ ᱥᱟᱯᱲᱟᱣ]

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