Molten — Definition, Formula, Properties & Uses | AllChemicals | AllChemicals

Also Known As	Liquid melt, molten state, fused (for salts), molten material

What is Molten?

Describes a substance in the liquid state due to heating beyond its melting point. Molten ionic compounds conduct electricity because their ions are mobile. Electrolysis of molten compounds (e.g., molten NaCl) is used to produce reactive metals like sodium.

Properties & Characteristics

Molten describes a substance that has been heated above its melting point and exists in the liquid state. Molten materials retain the composition of the solid but lose fixed shape. Molten salts (ionic liquids at high temperature) conduct electricity via mobile ions. Molten metals retain metallic bonding and electrical conductivity. Molten glass is a supercooled liquid with very high viscosity. The properties of molten substances differ significantly from both solid and solution states.

Uses & Applications

Molten materials are used in: electrolytic production of metals (aluminium via Hall-Héroult, sodium via Downs cell using molten salts), metallurgical casting and processing, glass forming and fibre drawing, crystal growth (Czochralski method for silicon), and in molten salt batteries and heat storage systems.

Safety Information

Molten materials are extremely hazardous due to very high temperatures (metals: >100°C to >3000°C; salts: 500-900°C) causing severe burns on contact. Water contacting molten metal causes steam explosions. Vapours from molten metals (zinc fume fever, lead vapour) are toxic. Full PPE including face shields and heat-resistant clothing is mandatory.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Molten

Index All "M" terms

Synonyms Liquid melt, molten state, fused (for salts), molten material

Frequently Asked Questions

What is Molten?

Describes a substance in the liquid state due to heating beyond its melting point. Molten ionic compounds conduct electricity because their ions are mobile. Electrolysis of molten compounds (e.g., molten NaCl) is used to produce reactive metals like sodium.

What is Molten used for?

Is Molten hazardous?

More "M" Terms

Macromolecule Magnesium Mg Magnetic Quantum Number m_l quantum number: −l to +l integers; e.g., p: m_l = −1, 0, +1 Main Group Elements Manganese Mn Manometer P = ρgh (hydrostatic); manometer measures pressure differential Mass Mass Action Expression Mass Defect Δm = Z·mₚ + N·mₙ − m_nucleus Mass Deficiency Mass Number Mass Number A = Z + N

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