Lithium iodide

Số CAS: 59216-97-6；10377-51-2
Khối lượng phân tử: 187.89；133.85
Công thức phân tử / ký hiệu hóa học: LiI .3H2O；LiI

Mô tả

Lithium iodide, or LiI, is a compound of lithium and iodine. When exposed to air, it becomes yellow in color, due to the oxidation of iodide to iodine. It crystallizes in the NaCl motif.^[3] Various hydrates are also known.

Lithium iodide

Identifiers
CAS number	10377-51-2^Y, 17023-24-4 (monohydrate) 17023-25-5 (dihydrate) 7790-22-9 (trihydrate)
PubChem	66321
ChemSpider	59699^Y
Jmol-3D images	Image 1
Properties
Molecular formula	LiI
Molar mass	133.85 g/mol
Appearance	White crystalline solid
Density	4.076 g/cm³ (anhydrous) 3.494 g/cm³ (trihydrate)
Melting point	469 °C
Boiling point	1171 °C
Solubility in water	151 g/100 mL (25 °C) 433 g/100 mL (100 °C) ^[1]
Solubility in methanol	343 g/100 mL (20 °C)
Solubility in acetone	42.6 g/100 mL (18 °C)
Refractive index (n_D)	1.955
Thermochemistry
Std enthalpy of formation Δ_fH^o₂₉₈	-2.02 kJ/g
Specific heat capacity, C	0.381 J/g K
Hazards
MSDS	External MSDS
EU Index	Not listed
Flash point	Non-flammable
Related compounds
Other anions	Lithium fluoride Lithium chloride Lithium bromide.
Other cations	Sodium iodide Potassium iodide Rubidium iodide Caesium iodide
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

ỨNG DỤNG

Lithium iodide is used as an electrolyte for high temperature batteries. It is also used for long life batteries as required,

Phiếu kiểm nghiệm

Product name		Lithium iodide			CAS：59216-97-6；10377-51-2
Description		White crystalline
TEST ITEMS			TEST RESULTS
LiI ·3H₂O Main Content More Than (%)			99	99.9		97 (Anhydrous lithium iodide, LiI content of not less than,% )
Content Of Impurity Less than (%)	Na		0.01	0.002		0.01
	K		0.005	0.002		0.005
	Ca		0.005	0.002		0.005
	Mg		0.001	0.0005		0.005
	Fe		0.005	0.001		0.005
	Pb		0.01	0.005		0.005
	Cl		0.005	0.002		0.005
	SO₄^2-		0.01	0.005		0.01