Lithium iodate

Lithium iodate

Names
IUPAC name Lithium iodate
Identifiers
CAS Number	13765-03-2
ChemSpider	141432
EC Number	237-365-2
Jmol interactive 3D	Image
PubChem	3084149
UN number	1479
InChI InChI=1S/HIO3.Li/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1 Key: FZAXZVHFYFGNBX-UHFFFAOYSA-M
SMILES [Li+].[O-]I(=O)=O
Properties
Chemical formula	ILiO3
Molar mass	181.84 g·mol^−1
Appearance	White hygroscopic crystals
Odor	Odorless
Density	4.487 g/cm^3[1]
Melting point	420–450 °C (788–842 °F; 693–723 K)[1][2][3]
Solubility in water	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]
Refractive index (nD)	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] α = 90°, β = 90°, γ = 120°
Hazards
GHS pictograms	[7]
GHS signal word	Danger
GHS hazard statements	H272, H315, H319, H335, H360[7]
GHS precautionary statements	P201, P220, P261, P305+351+338, P308+313[7]
EU classification (DSD)	O T
R-phrases	R8, R36/37/38, R61
S-phrases	S17, S22, S36/37/39, S45, S53
NFPA 704	[8] 0 2 2
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
verify (what is  ?)
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.^[9][10]

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. 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. 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. 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. External link in |website= (help)
6. 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. Sigma-Aldrich Co., Lithium iodate. Retrieved on 2014-08-08.
8. "SDS of Lithium iodate anhydrous" (PDF). https://www.pfaltzandbauer.com. Connecticut, USA: Pfaltz & Bauer, Inc. Retrieved 2014-08-08. External link in |website= (help)
9. 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.
10. 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.