Sodium Polysilicate

Definition - What does Sodium Polysilicate mean?

Sodium polysilicate is a common name for a group of compounds with the base elemental composition of sodium and a chain of silicon ions. It is typically insoluble when in solid form and may be described as water glass or liquid glass when in aqueous form.

Corrosionpedia explains Sodium Polysilicate

Sodium polysilicate contains ions that function as physical barriers to prevent alkali attack and corrosion of metallic surfaces. Sodium polysilicate also stabilizes chlorine and oxygen deposits and enhances surface phosphate replacement.

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