Metastannic Acid

Metastannic acid is an inorganic compound of tin in its +4 oxidation state. It typically exists as a white or off-white amorphous powder and is generally produced as a hydrated form of tin dioxide. The compound is essentially insoluble in water but can dissolve in strong acids and alkalis.Chemical Identity

Chemical Name: Metastannic Acid (also known as Stannic Acid or Tin(IV) Acid)

Chemical Formula: H₂SnO₃ or SnO₂·xH₂O (hydrated form)

Molecular Weight:

  • Anhydrous form (H₂SnO₃): approximately 168.73 g/mol
  • The molecular weight varies for hydrated forms depending on water content

Product Overview

Metastannic acid is an inorganic compound of tin in its +4 oxidation state. It typically exists as a white or off-white amorphous powder and is generally produced as a hydrated form of tin dioxide. The compound is essentially insoluble in water but can dissolve in strong acids and alkalis.

Key Characteristics

  • Appearance: White to off-white powder or gel-like substance
  • Solubility: Insoluble in water; soluble in concentrated acids and bases
  • Stability: Relatively stable under normal conditions
  • Form: Often exists as a hydrated colloidal gel

Applications

Metastannic acid finds use in various industrial applications including catalysis, as a precursor for tin dioxide materials, in ceramic formulations, and in certain chemical synthesis processes. Its amphoteric nature makes it valuable in specialized chemical applications.

Safety & Handling

As with all chemical products, metastannic acid should be handled with appropriate personal protective equipment and stored in a cool, dry place away from incompatible materials.