Lead (II) selenate

Structural formula
General
Surname	Lead (II) selenate
other names	Lead selenate
Molecular formula	PbSeO 4
Brief description	colorless solid
External identifiers / databases
EC number	231-199-4
ECHA InfoCard	100.028.363
PubChem	53471519
Wikidata	Q24629229
properties
Molar mass	350.16 g mol −1
Physical state	firmly
density	6.37 g cm −3
solubility	practically insoluble in water (130 mg / l at 25 ° C); soluble in concentrated acids;
Refractive index	1.96-1.98
safety instructions
H and P phrases	H: 300-330-360-373-410
	P: 260-301 + 310-304 + 340-320-330-405-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Lead (II) selenate is an inorganic chemical compound of lead from the selenate group .

Occurrence

Lead (II) selenate occurs naturally in the form of the mineral kerstenite .

Extraction and presentation

Lead selenate can be prepared by a reaction of a soluble lead salt, such as. E.g .: lead nitrate Pb (NO ₃ ) ₂ with a soluble selenate, e.g. B .: sodium selenate be won, with the poorly soluble Bleiselenat fails:

{\ displaystyle \ mathrm {Pb (NO_ {3}) _ {2} \ + Na_ {2} SeO_ {4} \ rightarrow PbSeO_ {4} \ downarrow + \ 2 \ NaNO_ {3}}}

properties

Lead (II) selenate is a colorless solid that is practically insoluble in water. It decomposes when heated above 500 ° C. It has an orthorhombic crystal structure with the space group Pnma (space group no. 62) (other source space group P 2 ₁ / n (space group no. 14, position 2) ). Template: room group / 62 Template: room group / 14.2

Individual evidence

↑ ^a ^b H. Effenberger, F. Pertlik: Four monazite type structures: comparison of SrCrO4, SrSeO4, PbCrO4 (crocoite), and PbSeO4. In: Journal of Crystallography. 176, 1986, p. 75, doi: 10.1524 / zkri.1986.176.1-2.75 .

↑ ^a ^b ^c ^d ^e ^f ^g data sheet Lead (II) selenate, 99.9% at AlfaAesar, accessed on June 15, 2016 ( PDF )(JavaScript required) .

^ William M. Haynes: CRC Handbook of Chemistry and Physics . 93rd edition. CRC Press, 2016, ISBN 978-1-4398-8050-0 , pp. 71 ( limited preview in Google Book search).

↑ ^a ^b R. Blachnik: Pocket book for chemists and physicists . tape 3 : Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 666 ( limited preview in Google Book search).

↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entries on lead compounds with the exception of those specified elsewhere in this Annex and selenium compounds with the exception of cadmium sulphoselenide and those specified elsewhere in this Annex in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 18, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .

[DOI10.1524/zkri.1986.176.1-2.75-1] H. Effenberger, F. Pertlik: Four monazite type structures: comparison of SrCrO4, SrSeO4, PbCrO4 (crocoite), and PbSeO4. In: Journal of Crystallography. 176, 1986, p. 75, doi: 10.1524 / zkri.1986.176.1-2.75 .

[Alfa-2] ↑ ^a ^b ^c ^d ^e ^f ^g data sheet Lead (II) selenate, 99.9% at AlfaAesar, accessed on June 15, 2016 ( PDF )(JavaScript required) .

[William_M._Haynes-3] William M. Haynes: CRC Handbook of Chemistry and Physics . 93rd edition. CRC Press, 2016, ISBN 978-1-4398-8050-0 , pp. 71 ( limited preview in Google Book search).

[R._Blachnik-4] R. Blachnik: Pocket book for chemists and physicists . tape 3 : Elements, inorganic compounds and materials, minerals . Springer-Verlag, 2013, ISBN 978-3-642-58842-6 , pp. 666 ( limited preview in Google Book search).