Lithium iodate

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Lithium iodate
Skeletal formula of lithium iodate with I—O bond length
Crystal structure of lithium iodate, iodines are inside the unit cell
Names
IUPAC name
Lithium iodate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.954
EC Number 237-365-2
UN number 1479
Properties
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][3][5]
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)[2]
Solubility Insoluble in EtOH[3]
−47.0·10−6 cm3/mol
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)[4]
Structure
Hexagonal,[3] hP10[6]
P6322, No. 182[6]
622[6]
a = 5.46(9) Å, c = 5.15(5) Å[6]
α = 90°, β = 90°, γ = 120°
Hazards
GHS pictograms The flame-over-circle pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)[7]
GHS signal word Danger
H272, H315, H319, H335, H360[7]
P201, P220, P261, P305+351+338, P308+313[7]
NFPA 704
Except where otherwise noted, data are 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.[9][10]

Properties[edit]

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.[5]

References[edit]

  1. ^ a b c d e f g 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. ^ Seidell, Atherton; Linke, William F. (1919). Solubilities of Inorganic and Organic Compounds (2nd ed.). New York City: D. Van Nostrand Company. p. 374.
  3. ^ a b c Lide, David R., ed. (2009). CRC Handbook of Chemistry and Physics (90th ed.). Boca Raton, Florida: CRC Press. ISBN 978-1-4200-9084-0.
  4. ^ Polyanskiy, Mikhail. "Refractive index of LiIO3 (Lithium iodate) - Herbst-o". http://www.refractiveindex.info. Retrieved 2014-08-08. External link in |website= (help)
  5. ^ a b 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". Proceedings of SPIE. 5222 (26). CiteSeerX 10.1.1.605.1743. doi:10.1117/12.507309.
  6. ^ a b c d 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. ^ a b c 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.