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Yttrium(III) phosphate
Names
IUPAC name
Yttrium phosphate
Identifiers
ChemSpider
ECHA InfoCard
100.034.341
EC Number
InChI=1S/H3O4P.Y/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
Key: UXBZSSBXGPYSIL-UHFFFAOYSA-K
InChI=1/H3O4P.Y/c1-5(2,3)4;/h(H3,1,2,3,4);/q;+3/p-3
Key: UXBZSSBXGPYSIL-DFZHHIFOAS
[O-]P(=O)([O-])[O-].[Y+3]
Properties
YPO4
Molar mass
183.877
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
A sample of the mineral
xenotime (YPO4 )
Yttrium phosphate , YPO4 , is the
phosphate salt of
yttrium .
[1] It occurs in nature as minerals
xenotime
[2] and weinschenkite.
[3]
Preparation
Yttrium phosphate can be obtained by reacting
yttrium chloride and
sodium phosphate , or by reacting
yttrium nitrate and
diammonium hydrogen phosphate in solution:
[2]
Y
C
l
3
+
(
N
H
4
)
3
P
O
4
⟶
Y
P
O
4
↓
+
3
N
H
4
C
l
{\displaystyle \mathrm {YCl_{3}+(NH_{4})_{3}PO_{4}\longrightarrow YPO_{4}\downarrow +3\ NH_{4}Cl} }
Y
(
N
O
3
)
3
+
(
N
H
4
)
2
H
P
O
4
⟶
Y
P
O
4
↓
+
2
N
H
4
N
O
3
+
H
N
O
3
{\displaystyle \mathrm {Y(NO_{3})_{3}+(NH_{4})_{2}HPO_{4}\longrightarrow YPO_{4}\downarrow \ +2\ NH_{4}NO_{3}+HNO_{3}} }
Yttrium phosphate can also be prepared by the reaction of
yttrium(III) oxide and diammonium hydrogen phosphate:
[4]
Y
2
O
3
+
2
(
N
H
4
)
2
H
P
O
4
⟶
Y
P
O
4
+
2
N
H
3
+
3
H
2
O
{\displaystyle \mathrm {Y_{2}O_{3}+2\ (NH_{4})_{2}HPO_{4}\longrightarrow YPO_{4}+2\ NH_{3}+3\ H_{2}O} }
Yttrium chloride and
phosphoric acid are mixed at 35~40°C, and then
ammonia solution is added dropwise to react:
[5]
Y
C
l
3
+
H
3
P
O
4
+
3
N
H
3
⋅
H
2
O
→
35
−
40
o
C
Y
P
O
4
+
3
N
H
4
C
l
+
3
H
2
O
{\displaystyle \mathrm {YCl_{3}+H_{3}PO_{4}+3NH_{3}\cdot H_{2}O\ {\xrightarrow {35-40^{o}C}}\ YPO_{4}+3NH_{4}Cl+3H_{2}O} }
Properties
Yttrium phosphate belongs to the
tetragonal crystal system , and the
unit cell parameters are a =0.68832 nm, c =0.60208 nm. It can exist as a monohydrate, dihydrate or the anhydrous form. The dihydrate belongs to the
monoclinic crystal system , the
space group is B 2/b , and the unit cell parameters are a =0.648 nm, b =1.512 nm, c =0.628 nm, β=129.4°, Z=4.
[6]
Yttrium phosphate reacts with concentrated alkali to form
yttrium hydroxide .
[7]
Uses
Yttrium phosphate is used as a catalyst and is a potential containment material for nuclear waste.
[2] Ce3+ -doped yttrium phosphate shows luminescence in the UV range and can be used for tanning lamps.
[8]
[9] Double-doped materials such as Ce3+ -Tb3+ have also been reported.
References
^
Greenwood, Norman N. ; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.).
Butterworth-Heinemann . p. 526.
ISBN
978-0-08-037941-8 .
^
a
b
c Macintyre, Jane Elizabeth; Daniel, F. M.; Stirling, V. M. (1992). Dictionary of inorganic compounds . London Glasgow New York [etc.]: Chapman & Hall.
ISBN
978-0-412-30120-9 .
^ minsocam.org:
WEINSCHENKITE, YTTRIUM PHOSPHATE DIHYDRATE , retrieved 16 May 2014
^ Georg Brauer: Handbuch der Präparativen Anorganischen Chemie. 3., umgearb. Auflage. Band I. Enke, Stuttgart 1975, ISBN 3-432-02328-6, S. 1114.
^ Руководство по неорганическому синтезу: В 6-ти т . Vol. 4. М.: Мир. 1985.
^ Справочник химика . Vol. 1 (2-е изд., испр ed.). М.-Л.: Химия. 1966.
^ Yi, Xianwu; Huang, Chunhui (2011). Kang . Wu ji hua xue cong shu (Di san ci yin shua ed.). Bei jing: Ke xue chu ban she.
ISBN
978-7-03-030574-9 .
^ Alsfasser, Ralf (2007).
Moderne anorganische Chemie: mit CD-ROM (in German). de Gruyter.
ISBN
978-3-11-019060-1 .
^
"铈激活磷酸钇发光材料_爱学术" . www.ixueshu.com . Retrieved 2023-06-21 .