View source for Chemistry:Strontium chromate

{{chembox
| verifiedrevid = 
| Name = Strontium chromate
| ImageFile = Strontiumchromaat.png
| ImageFile2 = Strontiumchromat.png
| OtherNames = C.I. Pigment Yellow 32<br>C.I. 77839
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = 
| ChemSpiderID = 
| InChI = 1S/Cr.4O.Sr/q;;;2*-1;+2
| InChIKey = NVKTUNLPFJHLCG-UHFFFAOYSA-N
| SMILES = [O-][Cr](=O)(=O)[O-].[Sr+2]
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 
| StdInChIKey_Ref =
| StdInChIKey = 
| CASNo = 7789-06-2
| CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = 2W214M3GS2
| PubChem = 24599
| RTECS = GB3240000
| EINECS = 232-142-6 
  }}
|Section2={{Chembox Properties
| Formula = SrCrO<sub>4</sub>
| Appearance = yellow powder
| Odor = 
| MolarMass = 203.614 g/mol
| Density = 3.353 g/cm<sup>3</sup>
| Solubility = 0.12 g/100 mL (15 °C) <br> 3 g/100 mL (100 °C)
| SolubleOther = Soluble in dilute acids and [[Chemistry:Ammonia|ammonia]]
| MeltingPt =
| MeltingPt_notes =
| BoilingPt =
| RefractIndex =
| MagSus = &minus;5.1·10<sup>−6</sup> cm<sup>3</sup>/mol
  }}
|Section3={{Chembox Structure
| CrystalStruct = monoclinic
}}
|Section7={{Chembox Hazards
| NFPA-H = 
| NFPA-F = 
| NFPA-R = 
| NFPA-S = 
| LD50 = 3118 mg/kg (rat, oral)
  }}
|Section8={{Chembox Related
| OtherCations = [[Chemistry:Magnesium chromate|Magnesium chromate]] <br> [[Chemistry:Barium chromate|Barium chromate]]
  }}
}}

'''Strontium chromate''' is an inorganic chemical compound with the formula {{chem2|SrCrO4}}.

== Preparation ==
Strontium chromate is prepared from [[Chemistry:Strontium chloride|strontium chloride]] and [[Chemistry:Sodium chromate|sodium chromate]], or from [[Chemistry:Strontium carbonate|strontium carbonate]] and [[Chemistry:Sodium dichromate|sodium dichromate]].

== Reactions ==
Strontium chromate is approximately 30 times more soluble in water at 100&nbsp;°C than at room temperature.  Therefore, the yellow strontium chromate can be suspended in a hot solution of a soluble sulfate to digest until fully converted to the much less soluble and white strontium sulfate, leaving the chromate or dichromate in solution.

== Uses ==
* Corrosion inhibitor in pigments
* In electrochemical processes to control sulphate concentration of solutions
* Colorant in polyvinyl chloride resins
* Pyrotechnics<ref name="CAMEO"/>
* Aluminium flake coatings
* As an anti-corrosive primer for [[Chemistry:Zinc|zinc]], [[Chemistry:Magnesium|magnesium]], [[Chemistry:Aluminium|aluminium]], and alloys used in aircraft manufacture.
* As a pigment used in oil painting named '''strontium yellow'''.<ref name="CAMEO">{{cite web |url=https://cameo.mfa.org/wiki/Strontium_yellow |title=Strontium yellow |date=2022-06-06 |department= |website=CAMEO database |publisher=Museum of Fine Arts, Boston |access-date=2023-02-14 |url-status= |archive-url= |archive-date= |via= |quote= }}</ref>

== References ==
{{reflist}}

{{Strontium compounds}}
{{Shades of yellow}}


[[Category:Chromates]]
[[Category:Strontium compounds]]
[[Category:Inorganic pigments]]


{{Sourceattribution|Strontium chromate}}