Iodate sulfates are mixed anion compounds that contain both iodate and sulfate anions. Iodate sulfates have been investigated as optical second harmonic generators, and for separation of rare earth elements.[1] Related compounds include the iodate selenates[2] and chromate iodates.[3]


Iodate sulfates can be produced from water solutions of iodic acid and sulfate salts.[4]

List

formula name formula

weight

system space group cell Å volume density comments ref
Na7(IO3)(SO4)3 624.01 orthorhombic P212121 a=6.839 b=10.851 c=18.519 Z=4 1374.2 3.016 at 100K; band gap 4.83; SHQ 0.5×KDP; birefringence 0.075 at 1064 nm [5]
Na9(IO3)(SO4)4 Hectorfloresite monoclinic P21/a a = 18.775 b = 6.9356 c = 14.239 β = 108.91° Z = 4 [5][6]
K2SO4·HIO3 350.17 monoclinic P21/n a=7.4215 b=7.1578 c=13.802 β=93.330° Z=4 731.9 3.178 colourless; birefingence 0.14 at 589.3 nm; UV edge 275 nm [7]
K3Na5Mg5(IO3)6(SO4)6(H2O)5 trigonal P3c1
K7.2Na8.8Mg10(IO3)12(SO4)12(H2O)12 Fuenzalidaite trigonal P3c1 a = 9.4643 c = 27.336 2,120.52 colourless; Uniaxial (-) nω = 1.622 nε = 1.615; Birefringence = 0.007 [5][8][9]
Nb2O3(IO3)2(SO4) 679.68 monoclinic P21 a=5.299 b=20.479 c=5.452 β=119.095° Z=2 517.0 4.366 band gap 3.25; SHG 6 × KDP; birefringence 0.22 at 1064 nm; stable below 580 °C [5][10]
Ce(IO3)2(SO4) CISO 585.98 orthorhombic P212121 a=7.5366 b=8.9787 c=11.6121 Z=4 785.78 4.953 yellow; SHG 3.5 × KDP; birefringence 0.259 at 546 nm [11]
Sm(IO3)(SO4) monoclinic P21/c a=9.3148 b=6.8678 c=8.2852 β=104.701° [12]
Sm2(IO3)3(SO4)OH·3H2O triclinic P1 a 7.3858 b 9.6166 c 11.8629 α=66.482° β=76.884° γ=69.101° [12]
Eu(IO3)(SO4) monoclinic P21/c a=9.3083 b=6.8460 c=8.2575 β=104.696° [5][1]
Eu2(IO3)3(SO4)OH·3H2O triclinic P1 a=7.3666 b=9.5817 c=11.8263 α=66.5365° β=76.8591° γ=69.1131° [12]
Dy(IO3)(SO4)(H2O) orthorhombic P212121 a=7.3088 b=9.4824 c=11.7302 α=66.6573° β=76.8745° γ=69.2970° [5]
Dy(IO3)(SO4)(H2O)3 orthorhombic P212121 a=6.682 b=8.791 c=13.632 [1]
Dy2(IO3)3(SO4)OH·3H2O triclinic P1 [12]
Hg2(IO3)2(SO4) monoclinic C2/c a=12.040 b=4.7133 c=15.533 β=102.43° [13]
Hg2(IO3)2(SO4)(H2O) monoclinic C2 a=11.767 b=4.9190 c=7.8076 β=97.10° band gap 3.98 eV; SHG 6 × KDP; dehydrate 250 °C [13]
Bi(IO3)(SO4) 479.94 monoclinic P21/c a=9.4355 b=6.9168 c=8.3374 β=105.168° Z=4 525.17 6.070 band gap 3.91 eV; birefringence 0.087 at 1064 nm; colourless [14]
Bi2O(SO4)(IO3)2 monoclinic P21/n a=7.2391 b=17.907 c=7.7964 β = 109.652° Z =4 [4]
AgBi(SO4)(IO3)2 1525.42 triclinic P1 a=5.5189 b=6.9129 c=11.8527 α=90.598° β=92.151° γ=109.895° Z=1 424.78 5.963 colourless; SHG 3.0 × KDP [15]
CdBi(IO3)(SO4)2 688.40 monoclinic P21/c a=12.777 b=6.8491 c=9.984 β=103.23° Z=4 850.5 5.376 band gap 4.03 eV; birefringence 0.100 at 1064 nm [14]

References

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  8. "Fuenzalidaite". Mindat.org.
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