Difference between revisions of "Camphor"

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m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==")
 
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An aromatic crystalline compound with a sweet smell. Camphor is obtained from the steam distillation of the leaves and wood of the camphor laurel tree, ''Cinnamomum camphora'', native to southeast Asia. It forms a white waxy solid when purified by steam distillation and sublimation. Since the 1930s camphor has also been made synthetically. Camphor has been used as an insect repellent and as a vapor phase corrosion inhibitor for metals. It was also used in [[Celluloid]] as a plasticizer for [[cellulose nitrate]]. Camphor sublimes slowly as room temperature; once vaporized it can react with and soften many plastics.
 
An aromatic crystalline compound with a sweet smell. Camphor is obtained from the steam distillation of the leaves and wood of the camphor laurel tree, ''Cinnamomum camphora'', native to southeast Asia. It forms a white waxy solid when purified by steam distillation and sublimation. Since the 1930s camphor has also been made synthetically. Camphor has been used as an insect repellent and as a vapor phase corrosion inhibitor for metals. It was also used in [[Celluloid]] as a plasticizer for [[cellulose nitrate]]. Camphor sublimes slowly as room temperature; once vaporized it can react with and soften many plastics.
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[[[SliderGallery rightalign|camphor.jpg~Chemical structure]]]
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
gum camphor; camphre (Fr.); 2-camphanone; 2-bornanone; Japan camphor; Formosa camphor; laurel camphor; synthetic camphor; Campher (Deut.); Kampfer(Deut.); camphre (Fr.); kamfer (Ned., Sven.); kamfora (Pol.); (Port.);
 
gum camphor; camphre (Fr.); 2-camphanone; 2-bornanone; Japan camphor; Formosa camphor; laurel camphor; synthetic camphor; Campher (Deut.); Kampfer(Deut.); camphre (Fr.); kamfer (Ned., Sven.); kamfora (Pol.); (Port.);
  
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[[[SliderGallery rightalign|camphor.jpg~Chemical structure]]]
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== Risks ==
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* Combustible.  Flash point = 64C 
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* Contact may cause irritation or burns.
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* Ingestion can cause nausea, vomiting, vertigo, convulsions and death. 
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* Fisher Scientific: [https://fscimage.fishersci.com/msds/97150.htm MSDS]
  
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== Other Properties ==
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==Physical and Chemical Properties==
  
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Rhombohedral crystals.  Sublimes at room temperature. Soluble in ethanol, ether, chloroform, aniline, nitrobenzene, carbon disulfide, decalin, ligroin.  Slightly soluble in water (0.12 g in 100 ml).
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* Rhombohedral crystals.   
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* Sublimes at room temperature.  
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* Soluble in ethanol, ether, chloroform, aniline, nitrobenzene, carbon disulfide, decalin, ligroin.  Slightly soluble in water (0.12 g in 100 ml).
  
 
{| class="wikitable"
 
{| class="wikitable"
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|-
 
|-
 
! scope="row"| Melting Point
 
! scope="row"| Melting Point
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| 179.75
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| 179.75 C
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
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| 0.992
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| 0.992 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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| 204
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| 204 C
 
|}
 
|}
  
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== Hazards and Safety ==
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==Resources and Citations==
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Combustible.  Flash point = 64C 
 
−
 
 
−
Contact may cause irritation or burns. Ingestion can cause nausea, vomiting, vertigo, convulsions and death. 
 
−
 
 
−
Fisher Scientific: [https://fscimage.fishersci.com/msds/97150.htm MSDS]
 
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== Sources Checked for Data in Record ==
 
  
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
 
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
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* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983
 
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983
  
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "camphor" Encyclopædia Britannica [Accessed May 6, 2002].
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* ''Encyclopedia Britannica'', http://www.britannica.com  Comment: "camphor" [Accessed May 6, 2002].
  
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 134
 
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 134
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* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
 
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998
  
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* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
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* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 14:46, 18 May 2022

Description

An aromatic crystalline compound with a sweet smell. Camphor is obtained from the steam distillation of the leaves and wood of the camphor laurel tree, Cinnamomum camphora, native to southeast Asia. It forms a white waxy solid when purified by steam distillation and sublimation. Since the 1930s camphor has also been made synthetically. Camphor has been used as an insect repellent and as a vapor phase corrosion inhibitor for metals. It was also used in Celluloid as a plasticizer for Cellulose nitrate. Camphor sublimes slowly as room temperature; once vaporized it can react with and soften many plastics.

Chemical structure

Camphor.jpg

Synonyms and Related Terms

gum camphor; camphre (Fr.); 2-camphanone; 2-bornanone; Japan camphor; Formosa camphor; laurel camphor; synthetic camphor; Campher (Deut.); Kampfer(Deut.); camphre (Fr.); kamfer (Ned., Sven.); kamfora (Pol.); (Port.);

Risks

  • Combustible. Flash point = 64C
  • Contact may cause irritation or burns.
  • Ingestion can cause nausea, vomiting, vertigo, convulsions and death.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

  • Rhombohedral crystals.
  • Sublimes at room temperature.
  • Soluble in ethanol, ether, chloroform, aniline, nitrobenzene, carbon disulfide, decalin, ligroin. Slightly soluble in water (0.12 g in 100 ml).
Composition C10H16O
CAS 76-22-2
Melting Point 179.75 C
Density 0.992 g/ml
Molecular Weight mol. wt. = 152.23
Boiling Point 204 C

Resources and Citations

  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • MSDS Sheet Comment: Fisher Scientific 8/02/02: mp = 175-177 C, flash point = 64C
  • 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
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 134
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
  • John S. Mills, Raymond White, The Organic Chemistry of Museum Objects, Butterworth Heineman, London, 2nd ed., 1994
  • 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
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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