Lithium iodate

Lithium iodate
Names
IUPAC name
Lithium iodate
Identifiers
13765-03-2 Yes
ChemSpider 141432 Yes
EC-number 237-365-2
Jmol-3D images Image
PubChem 3084149
UN number 1479
Properties
Molecular formula
 ILiO3
Molar mass 181.84 g·mol−1
Appearance White hygroscopic crystals
Odor Odorless
Density 4.487 g/cm3[1]
Melting point 420–450 °C (788–842 °F; 693–723 K)[1][2][3]
Anhydrous:
89.4 g/100 mL (10 °C)
82.7 g/100 mL (25 °C)
78.4 g/100 mL (40.1 °C)
73 g/100 mL (75.6 °C)[1]
Hemihydrate:
80.2 g/100 mL (18 °C)[4]
Solubility Insoluble in EtOH[2]
Thermal conductivity 1.27 W/m·K (a-axis)
0.65 W/m·K (c-axis)[1]
1.8875 (20 °C)
1.6 (RT)
nHe–Ne:
1.8815 (20 °C)[1]
1.5928 (RT)[5]
Structure
Crystal structure Hexagonal,[2] hP10[6]
Space group P6322, No. 182[6]
Point group 622[6]
Lattice constant a = 5.46(9) Å, c = 5.15(5) Å[6]
Lattice constant α = 90°, β = 90°, γ = 120°
Hazards
GHS pictograms [7]
GHS signal word Danger
H272, H315, H319, H335, H360[7]
P201, P220, P261, P305+351+338, P308+313[7]
EU classification O T
R-phrases R8, R36/37/38, R61
S-phrases S17, S22, S36/37/39, S45, S53
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g., phosphorus Special hazards (white): no codeNFPA 704 four-colored diamond
0
2
2
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Lithium iodate (LiIO3) is a negative uniaxial crystal[1] for nonlinear, acousto-optical and piezoelectric applications. It has been utilized for 347 nm ruby lasers.[8][9]

Properties

Mohs hardness of lithium iodate is 3.5–4. Its linear thermal expansion coefficient at 298 K (25 °C; 77 °F) is 2.8·10−5/°C (a-axis) and 4.8·10−5/°C (c-axis).[1] Its transition to β-form begin at 50 °C (122 °F) and it is irreversible.[3]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Rarely Used and Archive Crystals. Nonlinear Optical Crystals: A Complete Survey. 2005. pp. 364–368. doi:10.1007/0-387-27151-1_8. ISBN 978-0-387-27151-4.
  2. ↑ 2.0 2.1 2.2 Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
  3. ↑ 3.0 3.1 Teyssier, Jeremie; Dantec, Ronan Le; Galez, Christine; Mugnier, Yannick; Bouillot, Jacques; Plenet, Jean-Claude (2003-11-20). "LiIO3 nanocrystals in SiO2 xerogels, a new material for non-linear optics". Proceeding SPIE 5222 (26). doi:10.1117/12.507309.
  4. ↑ Seidell, Atherton; Linke, William F. (1919). Solubilities of Inorganic and Organic Compounds (2nd ed.). New York: D. Van Nostrand Company. p. 374.
  5. ↑ Polyanskiy, Mikhail. "Refractive index of LiIO3 (Lithium iodate) - Herbst-o". http://www.refractiveindex.info''. Retrieved 2014-08-08.
  6. ↑ 6.0 6.1 6.2 6.3 Zachariasen, W.H.; Olof, F.A. BartaLars (1931-06-15). "Crystal Structure of Lithium Iodate". Physical Review Letters 37: 1626. doi:10.1103/PhysRev.37.1626.
  7. ↑ 7.0 7.1 7.2 Sigma-Aldrich Co., Lithium iodate. Retrieved on 2014-08-08.
  8. ↑ Risk, W. P.; Gosnell, T. R.; Nurmikko, A. V. (9 January 2003). Compact Blue-Green Lasers. Cambridge University Press. p. 123. ISBN 978-0-521-52103-1. Retrieved 13 December 2012.
  9. ↑ Nikogosyan, David N. (4 January 2005). Nonlinear Optical Crystals: A Complete Survey. Springer. p. 371. ISBN 978-0-387-22022-2. Retrieved 13 December 2012.