Difference between pages "Sodium nitrate" and "Sodium nitrite"

From CAMEO
(Difference between pages)
Jump to navigation Jump to search
 
 
Line 1: Line 1:
 
== Description ==
 
== Description ==
  
−
Colorless, deliquescent crystals that naturally as [[caliche|caliche]] in mineral deposits. Sodium nitrate is primarily used as a fertilizer. It is also used in the manufacture of glass, match heads, and explosives.
+
White to pale yellow [[hygroscopic|hygroscopic]] crystals. Sodium nitrite is used in dyeing [[textile|textiles]] with [[developed%20dye|developed dyes]]. It is also used as a [[fixative|fixative]] for color photographs. In a closed environment, a saturated solution of sodium nitrite will form an equilibrium at a relative humidity of about 65% (20C).
  
 
== Synonyms and Related Terms ==
 
== Synonyms and Related Terms ==
  
−
caliche; Chili niter; Chile nitre; Chile saltpeter; soda niter; cubic niter; dusiènan sodný (Ces.); Natriumnitrat (Deut.); nitrato sódico (Esp.); nitrate de sodium (Fr.); natriumnitraat (Ned.); azotan(V) sodu (Pol.);
+
nitrous acid sodium salt; erinitrit; nitrite
  
−
[[[SliderGallery rightalign|aaiNANO3.jpg~FTIR|sodium nitrate.jpg~Chemical structure]]]
+
== Risks ==
  
−
== Hazards and Safety ==
+
* Carcinogenic in test animals.
−
 
+
* Strong oxidizing agent.  
−
* Toxic by ingestion and inhalation.
+
* Fire risk in contact with oxidizing materials.  
−
* Hygroscopic.
+
* Used as an antidote for cyanide poisoning.
−
* Contact may cause irritation.  
+
* Fisher Scientific: [https://fscimage.fishersci.com/msds/21410.htm MSDS]
−
* ThermoFisher: [https://www.fishersci.com/store/msds?partNumber=S343500&productDescription=SOD+NITRATE+ACS+500G&vendorId=VN00033897&countryCode=US&language=en SDS]
 
  
 
== Physical and Chemical Properties ==
 
== Physical and Chemical Properties ==
  
−
Soluble in water, glycerol. Slightly soluble in ethanol. Crystals are cubic.
+
* Soluble in water. Slightly soluble in ethanol.  
 +
* Deliquescent point at 20C is 65.3 % RH (see [[saturated%20salt%20solutions|saturated salt solutions]])
  
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
 
! scope="row"| Composition
 
! scope="row"| Composition
−
| NaNO3
+
| NaNO2
 
|-
 
|-
 
! scope="row"| CAS
 
! scope="row"| CAS
−
| 7631-99-4
+
| 7632-00-0
 
|-
 
|-
 
! scope="row"| Melting Point
 
! scope="row"| Melting Point
−
| 308 C
+
| 271 C
 
|-
 
|-
 
! scope="row"| Density
 
! scope="row"| Density
−
| 2.267 g/ml
+
| 2.157 g/ml
 
|-
 
|-
 
! scope="row"| Molecular Weight
 
! scope="row"| Molecular Weight
−
| mol. wt. = 85
+
| mol. wt. = 69.0
−
|-
 
−
! scope="row"| Refractive Index
 
−
| 1.5874, 1.3361
 
−
|-
 
−
! scope="row"| Boiling Point
 
−
| 380 C (dec)
 
 
|}
 
|}
  
−
== Physical and Chemical Properties ==
+
== Resources and Citations ==
−
 
 
−
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 738
 
  
 
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
 
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
  
−
* 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
+
* Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982
−
 
 
−
* Michael McCann, ''Artist Beware'', Watson-Guptill Publications, New York City, 1979
 
  
 
* ''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
Line 58: Line 48:
 
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
 
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
  
−
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 8792
+
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983  Comment: entry 8793
−
 
 
−
* Wikipedia: http://en.wikipedia.org/wiki/Sodium_nitrate (Accessed Jan. 15, 2006)
 
−
 
 
−
* ''CRC Handbook of Chemistry and Physics'', Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980  Comment: ref. index = 1.5874, 1.3361
 
  
  
  
 
[[Category:Materials database]]
 
[[Category:Materials database]]

Latest revision as of 09:53, 2 June 2022

Description

White to pale yellow Hygroscopic crystals. Sodium nitrite is used in dyeing textiles with developed dyes. It is also used as a Fixative for color photographs. In a closed environment, a saturated solution of sodium nitrite will form an equilibrium at a relative humidity of about 65% (20C).

Synonyms and Related Terms

nitrous acid sodium salt; erinitrit; nitrite

Risks

  • Carcinogenic in test animals.
  • Strong oxidizing agent.
  • Fire risk in contact with oxidizing materials.
  • Used as an antidote for cyanide poisoning.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Composition NaNO2
CAS 7632-00-0
Melting Point 271 C
Density 2.157 g/ml
Molecular Weight mol. wt. = 69.0

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
  • 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
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8793

Retrieved from "https://cameo.mfa.org/index.php?title=Sodium_nitrate&oldid=87030"