Difference between revisions of "Arsenic trisulfide"

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[[File:orpimentdw.jpg|thumb|Orpiment crystals]]
 
[[File:orpimentdw.jpg|thumb|Orpiment crystals]]
 
== Description ==
 
== Description ==
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[[File:orpiment C100x.jpg|thumb|orpiment]]
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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.
  
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A bright yellow, crystalline powder that occurs naturally as the mineral [http://cameo.mfa.org/materials/fullrecord.asp?name=orpiment orpiment]. Orpiment is often found with lead and silver ores along with [http://cameo.mfa.org/materials/fullrecord.asp?name=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]]
 
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
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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]]]
  
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== Other Properties ==
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== Risks ==
  
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Soluble in nitric acid and alkali sulfide solutions. Insoluble in water and hydrochloric acid.
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* Highly toxic by ingestion and inhalation.  
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* Skin contact causes irritation.
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* Carcinogen and mutagen. 
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* Fisher Scientific: [https://fscimage.fishersci.com/msds/84980.htm MSDS]
  
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Small, often elongated particles (4-20 microns); Strong yellow particles with high birefringence and straight extinction
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==Physical and Chemical Properties==
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* Soluble in nitric acid and alkali sulfide solutions. Insoluble in water and hydrochloric acid.
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* Small, often elongated particles (4-20 microns);  
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* 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
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| 300
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| 300 C
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
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| 3.43
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| 3.43 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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|-
 
|-
 
! scope="row"| Boiling Point
 
! scope="row"| Boiling Point
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| 707
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| 707 C
 
|}
 
|}
  
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== Hazards and Safety ==
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==Resources and Citations==
  
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Highly toxic by ingestion and inhalation. Skin contact causes irritation. Carcinogen and mutagen. 
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* [http://webexhibits.org/pigments/indiv/technical/orpiment.html  Pigments through the ages]
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Fisher Scientific: [https://fscimage.fishersci.com/msds/84980.htm MSDS]
 
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== Additional Information ==
 
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° [http://webexhibits.org/pigments/indiv/technical/orpiment.html  Pigments through the ages]
 
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== Authority ==
 
  
 
* 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
  
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* Wikipedia, the free encyclopedia, at http://www.wikipedia.com  Comment: http://en.wikipedia.org/wiki/Arsenic_trisulfide (accessed Aug. 30, 2005)
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* 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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* Website address 1  Comment: Pigments Through the Ages - http://webexhibits.org/pigments/indiv/technical/orpiment.html
 
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 10:22, 30 April 2022

Orpiment crystals

Description

orpiment

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

Raman

OrpimentUCL.jpg

Raman

Orpimentitaly1.jpg

XRD

PIG334.jpg

SEM

F334sem.jpg

EDS

F334edsbw.jpg

Chemical structure

Arsenic trisulfide.jpg


Risks

  • Highly toxic by ingestion and inhalation.
  • Skin contact causes irritation.
  • Carcinogen and mutagen.
  • Fisher Scientific: MSDS

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

Resources and Citations

  • Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004
  • 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

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