2LiI + Na₂SiO₃ 💧→ Li₂SiO₃↓ + 2NaI

Last updated: June 13, 2022

Reaction of lithium iodide and sodium metasilicate: 2LiILithium iodide + Na₂SiO₃Sodium metasilicate
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Li₂SiO₃↓Lithium metasilicate + 2NaISodium iodide

The reaction of lithium iodide and sodium metasilicate yields lithium metasilicate and sodium iodide. This reaction is an acid-base reaction and is classified as follows:

Table of contents

Reaction data

Chemical formula	Name	Coefficient	Type	Type in general equation
LiI	Lithium iodide	2	Lewis acid	Very soluble in water
Na₂SiO₃	Sodium metasilicate	1	Lewis base	Soluble in water

Chemical formula	Name	Coefficient	Type	Type in general equation
Li₂SiO₃	Lithium metasilicate	1	Lewis conjugate	Insoluble in water
NaI	Sodium iodide	2	Non-redox product	–

Reaction of lithium iodide and sodium metasilicate ◆ Δ_rG −125.9 kJ/mol K 1.14 × 10²² pK −22.06: 2LiICrystalline solid + Na₂SiO₃Crystalline solid
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Li₂SiO₃↓Crystalline solid + 2NaICrystalline solid

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	−127.9	−125.9	−10.52	–
per 1 mol of Lithium iodide	−63.95	−62.95	−5.260	–
per 1 mol of Sodium metasilicate	−127.9	−125.9	−10.52	–
per 1 mol of Lithium metasilicate	−127.9	−125.9	−10.52	–
per 1 mol of Sodium iodide	−63.95	−62.95	−5.260	–

Reaction of lithium iodide and sodium metasilicate: 2LiIIonized aqueous solution + Na₂SiO₃Aqueous solution
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Li₂SiO₃↓Crystalline solid + 2NaIIonized aqueous solution

	Standard enthalpy of reaction Δ_rH° kJ · mol⁻¹	Standard Gibbs energy of reaction Δ_rG° kJ · mol⁻¹	Standard entropy of reaction Δ_rS° J · K⁻¹ · mol⁻¹	Standard heat capacity of reaction at constant pressure Δ_rC_p° J · K⁻¹ · mol⁻¹
per 1 mol of Equation	14.8	–	–	–
per 1 mol of Lithium iodide	7.40	–	–	–
per 1 mol of Sodium metasilicate	14.8	–	–	–
per 1 mol of Lithium metasilicate	14.8	–	–	–
per 1 mol of Sodium iodide	7.40	–	–	–

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
LiI (cr)	-270.41^[1]	-270.29^[1]	86.78^[1]	51.04^[1]
LiI (g)	-81.09^[1]	-124.34^[1]	232.321^[1]	34.64^[1]
LiI (ai)	-333.67^[1]	-344.8^[1]	124.7^[1]	-73.6^[1]
LiI (cr) 1 hydrate	-590.32^[1]	-531.3^[1]	123.0^[1]	–
LiI (cr) 2 hydrate	-890.40^[1]	-780.2^[1]	184^[1]	–
LiI (cr) 3 hydrate	-1192.15^[1]	-1032.13^[1]	250.2^[1]	–
Na₂SiO₃ (cr)	-1554.90^[1]	-1462.80^[1]	113.85^[1]	–
Na₂SiO₃ (vit)	-1540.1^[1]	–	–	–
Na₂SiO₃ (aq)	-1586.2^[1]	–	–	–
Na₂SiO₃ (cr) 5 hydrate	-3048.5^[1]	–	–	–
Na₂SiO₃ (cr) 9 hydrate	-4228.8^[1]	–	–	–

* (cr):Crystalline solid, (g):Gas, (ai):Ionized aqueous solution, (vit):Vitreous liquid, (aq):Aqueous solution

Chemical formula	Standard enthalpy of formation Δ_fH° kJ · mol⁻¹	Standard Gibbs energy of formation Δ_fG° kJ · mol⁻¹	Standard molar entropy S° J · K⁻¹ · mol⁻¹	Standard molar heat capacity at constant pressure C_p° J · K⁻¹ · mol⁻¹
Li₂SiO₃ (cr)	-1648.1^[1]	-1557.2^[1]	79.83^[1]	99.08^[1]
Li₂SiO₃ (vit)	-1628^[1]	–	–	–
NaI (cr)	-287.78^[1]	-286.06^[1]	98.53^[1]	52.09^[1]
NaI (g)	-79.5^[1]	-121.0^[1]	248.978^[1]	36.65^[1]
NaI (ai)	-295.31^[1]	-313.47^[1]	170.3^[1]	-95.8^[1]
NaI (cr) 1 hydrate	-883.096^[1]	-771.10^[1]	196.2^[1]	–

* (cr):Crystalline solid, (vit):Vitreous liquid, (g):Gas, (ai):Ionized aqueous solution