Difference between revisions of "Hydrogen sulfide"
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== Description == | == Description == | ||
| − | A colorless gas that smells like rotten eggs. Hydrogen sulfide occurs as a component in natural gas, volcanic gas, and sulfur springs. | + | A colorless gas that smells like rotten eggs. Hydrogen sulfide occurs as a component in natural gas, volcanic gas, and sulfur springs. Other sources of the [[pollutant]] include the combustion of sulfur containing coal, and the organic decay of manure. Hydrogen sulfide can also be emitted from some paints, textiles, and vulcanized rubbers. As a component in air pollution, it is responsible for tarnishing silver and blackening lead pigments. Commercially, hydrogen sulfide is used as an antiseptic and a bleach. |
| + | |||
| + | * See [[Pollutant]] record for a comparison table of aerosols and collection risks. | ||
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| Line 7: | Line 9: | ||
sulfureted hydrogen; hydrosulfuric acid; ashepatic air; fetid air of sulfur; sulphydric acid; hydrothionic acid | sulfureted hydrogen; hydrosulfuric acid; ashepatic air; fetid air of sulfur; sulphydric acid; hydrothionic acid | ||
| − | == | + | == Personal Risks == |
| + | |||
| + | * Highly toxic by inhalation. | ||
| + | * Causes irritation to eyes and mucous membranes. | ||
| + | * Flammable, dangerous fire risk. Explosive limits 4.3-46%. | ||
| + | * Airgas: [https://www.airgas.com/msds/001029.pdf SDS] | ||
| + | |||
| + | ==Collection Risks== | ||
| + | * Corrodes or tarnish silver, copper, bronze and lead | ||
| + | * Corrodes daguerreotypes | ||
| + | * Can cause silver mirroring | ||
| + | * Yellowing of paper and fabric | ||
| + | * Lead white darkening | ||
| + | * Red rot in leather | ||
| + | |||
| + | ==Physical and Chemical Properties== | ||
Soluble in water, glycerol, gasoline, kerosene, carbon disulfide. Burns in air with a pale blue flame. | Soluble in water, glycerol, gasoline, kerosene, carbon disulfide. Burns in air with a pale blue flame. | ||
| Line 20: | Line 37: | ||
|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | -83.8 | + | | -83.8 C |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 26: | Line 43: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | -60.2 | + | | -60.2 C |
|} | |} | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | + | * Jean Tétreault, 'Products used in Preventive Conservation' Technical Bulletin #2, CCI, 2017. [https://www.canada.ca/en/conservation-institute/services/conservation-preservation-publications/technical-bulletins/products-used-preventive-conservation.html#a2c1 Link] | |
| + | * Wikipedia: [https://en.wikipedia.org/wiki/Hydrogen_sulfide Hydrogen sulfide] Accessed July 2023 | ||
| − | [[Category:Materials database]] | + | [[Category:Materials database]][[Category: MWG]][[Category: Climate/Environment]] |
Latest revision as of 15:16, 17 July 2023
Description
A colorless gas that smells like rotten eggs. Hydrogen sulfide occurs as a component in natural gas, volcanic gas, and sulfur springs. Other sources of the Pollutant include the combustion of sulfur containing coal, and the organic decay of manure. Hydrogen sulfide can also be emitted from some paints, textiles, and vulcanized rubbers. As a component in air pollution, it is responsible for tarnishing silver and blackening lead pigments. Commercially, hydrogen sulfide is used as an antiseptic and a bleach.
- See Pollutant record for a comparison table of aerosols and collection risks.
Synonyms and Related Terms
sulfureted hydrogen; hydrosulfuric acid; ashepatic air; fetid air of sulfur; sulphydric acid; hydrothionic acid
Personal Risks
- Highly toxic by inhalation.
- Causes irritation to eyes and mucous membranes.
- Flammable, dangerous fire risk. Explosive limits 4.3-46%.
- Airgas: SDS
Collection Risks
- Corrodes or tarnish silver, copper, bronze and lead
- Corrodes daguerreotypes
- Can cause silver mirroring
- Yellowing of paper and fabric
- Lead white darkening
- Red rot in leather
Physical and Chemical Properties
Soluble in water, glycerol, gasoline, kerosene, carbon disulfide. Burns in air with a pale blue flame.
| Composition | H2S |
|---|---|
| CAS | 7783-06-4 |
| Melting Point | -83.8 C |
| Molecular Weight | mol. wt. = 34.08 |
| Boiling Point | -60.2 C |
Physical and Chemical Properties
- Jean Tétreault, 'Products used in Preventive Conservation' Technical Bulletin #2, CCI, 2017. Link
- Wikipedia: Hydrogen sulfide Accessed July 2023