Difference between revisions of "Dinitrophenol"

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A yellow crystalline material used in the manufacture of sulfur dyes and photographic developer. Dinitrophenol is a chromotropic [[indicator dye|pH indicator]] that is colorless below pH 2.6 and yellow above pH 4.4. It is also used as a wood preservative, an [[insecticide]], and a reagent for the detection of [[potassium]] and ammonium ions.
 
A yellow crystalline material used in the manufacture of sulfur dyes and photographic developer. Dinitrophenol is a chromotropic [[indicator dye|pH indicator]] that is colorless below pH 2.6 and yellow above pH 4.4. It is also used as a wood preservative, an [[insecticide]], and a reagent for the detection of [[potassium]] and ammonium ions.
 
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[[[SliderGallery rightalign|dinitrophenol.jpg~Chemical structure]]]
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
 
2,4-dinitrophenol; alpha-dinitrophenol; dinitrophenol (Fr.); Aldifen
 
2,4-dinitrophenol; alpha-dinitrophenol; dinitrophenol (Fr.); Aldifen
  
[[[SliderGallery rightalign|dinitrophenol.jpg~Chemical structure]]]
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== Risks ==
  
== Other Properties ==
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* Combustible.  Explosion hazard when dry. 
 +
* Highly toxic by skin absorption, ingestion and inhalation. 
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* Millipore Sigma: [https://www.sigmaaldrich.com/US/en/product/aldrich/d198501 SDS]
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==Physical and Chemical Properties==
  
 
Soluble in ethanol, ether, benzene and chloroform. Slightly soluble in water.
 
Soluble in ethanol, ether, benzene and chloroform. Slightly soluble in water.
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! scope="row"| Melting Point
 
! scope="row"| Melting Point
| 112-114
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| 112-114 C
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
| 1.683
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| 1.683 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
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== Hazards and Safety ==
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==Resources and Citations==
 
 
Combustible.  Explosion hazard when dry. 
 
 
 
Highly toxic by skin absorption, ingestion and inhalation. 
 
 
 
[http://www.cdc.gov/niosh/ipcsneng/neng0464.html International Chemical Safety Card]
 
 
 
== Authority ==
 
  
 
* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996
 
* ''The Merck Index'', Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996

Latest revision as of 14:41, 21 July 2022

Description

A yellow crystalline material used in the manufacture of sulfur dyes and photographic developer. Dinitrophenol is a chromotropic pH indicator that is colorless below pH 2.6 and yellow above pH 4.4. It is also used as a wood preservative, an Insecticide, and a reagent for the detection of Potassium and ammonium ions.

Chemical structure

Dinitrophenol.jpg

Synonyms and Related Terms

2,4-dinitrophenol; alpha-dinitrophenol; dinitrophenol (Fr.); Aldifen

Risks

  • Combustible. Explosion hazard when dry.
  • Highly toxic by skin absorption, ingestion and inhalation.
  • Millipore Sigma: SDS

Physical and Chemical Properties

Soluble in ethanol, ether, benzene and chloroform. Slightly soluble in water.

Composition C6H3OH(NO2)2
CAS 51-28-5
Melting Point 112-114 C
Density 1.683 g/ml
Molecular Weight mol. wt.=184.11

Resources and Citations

  • The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993