Difference between revisions of "Arsenic trisulfide"
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A bright yellow, crystalline powder that occurs naturally as the mineral [[orpiment|orpiment]]. Orpiment is often found with lead and silver ores along with [[realgar|realgar]] (arsenic disulfide). It was once widely used as a pigment because of its bright rich color. However, it is extremely toxic which has limited its use and availability. Arsenic trisulfide was also used to dehair and tan leathers, to kill rodents, and to print calico textiles. It is still used in fireworks and in the manufacture of infrared transmitting glass. | A bright yellow, crystalline powder that occurs naturally as the mineral [[orpiment|orpiment]]. Orpiment is often found with lead and silver ores along with [[realgar|realgar]] (arsenic disulfide). It was once widely used as a pigment because of its bright rich color. However, it is extremely toxic which has limited its use and availability. Arsenic trisulfide was also used to dehair and tan leathers, to kill rodents, and to print calico textiles. It is still used in fireworks and in the manufacture of infrared transmitting glass. | ||
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[[File:orpiment C100x.jpg|thumb|orpiment]] | [[File:orpiment C100x.jpg|thumb|orpiment]] | ||
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[[[SliderGallery rightalign|OrpimentUCL.jpg~Raman|Orpimentitaly1.jpg~Raman|PIG334.jpg~XRD|f334sem.jpg~SEM|f334edsbw.jpg~EDS|arsenic trisulfide.jpg~Chemical structure]]] | [[[SliderGallery rightalign|OrpimentUCL.jpg~Raman|Orpimentitaly1.jpg~Raman|PIG334.jpg~XRD|f334sem.jpg~SEM|f334edsbw.jpg~EDS|arsenic trisulfide.jpg~Chemical structure]]] | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Soluble in nitric acid and alkali sulfide solutions. Insoluble in water and hydrochloric acid. | + | * Soluble in nitric acid and alkali sulfide solutions. Insoluble in water and hydrochloric acid. |
| − | + | * Small, often elongated particles (4-20 microns); | |
| − | Small, often elongated particles (4-20 microns); Strong yellow particles with high birefringence and straight extinction | + | * Strong yellow particles with high birefringence and straight extinction |
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | 300 | + | | 300 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 3.43 | + | | 3.43 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
| Line 39: | Line 38: | ||
|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | 707 | + | | 707 C |
|} | |} | ||
| − | == | + | == Risks == |
| − | Highly toxic by ingestion and inhalation. Skin contact causes irritation. Carcinogen and mutagen. | + | * Highly toxic by ingestion and inhalation. |
| + | * Skin contact causes irritation. | ||
| + | * Carcinogen and mutagen. | ||
| + | * Fisher Scientific: [https://fscimage.fishersci.com/msds/84980.htm MSDS] | ||
| − | + | ==Resources and Citations== | |
| − | + | * [http://webexhibits.org/pigments/indiv/technical/orpiment.html Pigments through the ages] | |
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* Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, ''Pigment Compendium'', Elsevier Butterworth-Heinemann, Oxford, 2004 | * Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, ''Pigment Compendium'', Elsevier Butterworth-Heinemann, Oxford, 2004 | ||
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Arsenic_trisulfide (accessed Aug. 30, 2005) |
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 69 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 69 | ||
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* Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985 | * Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985 | ||
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[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 10:16, 30 April 2022
Description
A bright yellow, crystalline powder that occurs naturally as the mineral Orpiment. Orpiment is often found with lead and silver ores along with Realgar (arsenic disulfide). It was once widely used as a pigment because of its bright rich color. However, it is extremely toxic which has limited its use and availability. Arsenic trisulfide was also used to dehair and tan leathers, to kill rodents, and to print calico textiles. It is still used in fireworks and in the manufacture of infrared transmitting glass.
Synonyms and Related Terms
arsenic (III) sulfide; Pigment Yellow 39; CI 77085, 77086; orpiment (mineral); arsenic sulphide (Br.); Operment (Deut.); Rauschgelb (Deut.); Konigsgelb (Deut.); jaune royal (Fr.); trisulfure d'arsenic (Fr.); oropimente (Esp.); orpimento (It.); trisolfuro d'arsenico (It.); kio (Jap.); sekio (Jap.); ouropigmento (Port.); yellow arsenic sulfide; king's yellow; arsenic yellow; jaune royal; king's gold; arsenous sulfide; arsenic tersulfide; arsenious sulfide; auripigment
Physical and Chemical Properties
- Soluble in nitric acid and alkali sulfide solutions. Insoluble in water and hydrochloric acid.
- Small, often elongated particles (4-20 microns);
- Strong yellow particles with high birefringence and straight extinction
| Composition | As2S3 |
|---|---|
| CAS | 1303-33-9 |
| Melting Point | 300 C |
| Density | 3.43 g/ml |
| Molecular Weight | mol. wt. = 246.04 |
| Refractive Index | 2.40; 2.81; 3.02 |
| Boiling Point | 707 C |
Risks
- Highly toxic by ingestion and inhalation.
- Skin contact causes irritation.
- Carcinogen and mutagen.
- Fisher Scientific: MSDS
Resources and Citations
- Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004
- Wikipedia: http://en.wikipedia.org/wiki/Arsenic_trisulfide (accessed Aug. 30, 2005)
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 69
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 846
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985