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Home > Products >  Hydrogen sulfide (H2S)

Hydrogen sulfide (H2S) CAS NO.7783-06-4

  • Min.Order: 1 Kilogram
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  • ProName: Hydrogen sulfide (H2S)
  • CasNo: 7783-06-4
  • Molecular Formula: H2S
  • Appearance: colourless gas with strong odour of ro...
  • Application: Used in organic synthesis Used for Pe...
  • DeliveryTime: 15 days after order confirmed
  • PackAge: 1kg/bag, 1kg/drum or 25kg/drum or as p...
  • Port: Shanghai, Ningbo, Tianjin, etc
  • ProductionCapacity: 1 Metric Ton/Month
  • Purity: 99%
  • Storage: Stored in cool, dry and ventilation pl...
  • Transportation: by courier door to door or by sea
  • LimitNum: 1 Kilogram

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HYDROGEN SULFIDE Chemical Properties
mp  −85 °C(lit.)
bp  −60 °C(lit.)
vapor density  1.19 (15 °C, vs air)
vapor pressure  252 psi ( 21 °C)
Merck  13,4823
Stability: Stable. Highly flammable. May form explosive mixture with air. Note wide explosive limits. Incompatible with strong oxidizing agents, many metals. May react violently with metal oxides, copper, fluorine, sodium, ethanal.
CAS DataBase Reference 7783-06-4(CAS DataBase Reference)
 
Safety Information
Hazard Codes  F+,T+,N
Risk Statements  12-26-50
Safety Statements  9-16-36-38-45-61
RIDADR  UN 1053 2.3
WGK Germany  2
RTECS  MX1225000
HazardClass  2.3
MSDS Information
Provider Language
SigmaAldrich English
 
HYDROGEN SULFIDE Usage And Synthesis
Chemical Properties colourless gas with strong odour of rotten eggs (odour threshold ca 0.2 ppt)
Air & Water Reactions Highly flammable; a flame can very easily flash back to the source of leak. Soluble in water to a maximum of 0.4% by mass at room temperature .
Reactivity Profile HYDROGEN SULFIDE reacts as an acid and as a reducing agent. Explodes on contact with oxygen difluoride, bromine pentafluoride, chlorine trifluoride, dichlorine oxide, silver fulminate. May ignite and explode when exposed to powdered copper in oxygen [Mertz, V. et al., Ber., 1880, 13, p. 722]. May react similarly with other powdered metals. Ignites on contact with metal oxides and peroxides (barium peroxide, chromium trioxide, copper oxide, lead dioxide, manganese dioxide, nickel oxide, silver oxide, silver dioxide, thallium trioxide, sodium peroxide, mercury oxide, calcium oxide) [Mellor, 1947, vol. 10, p. 129, 141]. Ignites with silver bromate, lead(II) hypochlorite, copper chromate, nitric acid, lead(IV) oxide and rust. May ignite if passed through rusty iron pipes [Mee, A. J., School Sci. Rev., 1940, 22(85), p. 95]. Reacts exothermically with bases. The heat of the reaction with soda lime, sodium hydroxide, potassium hydroxide, barium hydroxide may lead to ignition or explosion of the unreacted portion in the presence of air / oxygen [Mellor, 1947, vol. 10, p. 140].
Health Hazard Exposure to very high concentrations causes immediate death. Also death or permanent injury may occur after very short exposure to small quantities. It acts directly upon the nervous system resulting in paralysis of respiratory centers.
Fire Hazard Compound is heavier than air and may travel a considerable distance to source of ignition and flash back. HYDROGEN SULFIDE forms explosive mixtures with air over a wide range. Also reacts explosively with bromine pentafluoride, chlorine trifluoride, nitrogen triiodide, nitrogen trichloride, oxygen difluoride, and phenyl diazonium chloride. When heated to decomposition, HYDROGEN SULFIDE emits highly toxic fumes of oxides of sulfur. Incompatible with many materials including strong oxidizers, metals, strong nitric acid, bromine pentafluoride, chlorine trifluoride, nitrogen triiodide, nitrogen trichloride, oxygen difluoride and phenyl diazonium chloride. Avoid physical damage to containers; sources of ignition; storage near nitric acid, strong oxidizing materials, and corrosive liquids or gases.

 

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