page_title: Barium metaphosphate
hierarchical_section_title: Barium metaphosphate
caption_attribution_description: English: structure of a linear polyphosphate
context_page_description: Barium metaphosphate is an inorganic substance with the molecular formula Ba(PO₃)₂. It is a colourless solid that is insoluble in water, though is soluble in acidic solutions through "slow dissolution". X-ray crystallography shows that this material is composed of Ba²⁺ cations attached to a polyphosphate anion. A number of hydrated forms are known which are actually cyclic metaphosphates, Ba₂·3.5H₂O, Ba₃(P₃O₉)₂·6H₂O.
context_section_description: Barium metaphosphate is an inorganic substance with the molecular formula Ba(PO₃)₂.  It is a colourless solid that is insoluble in  water, though is soluble in acidic solutions through "slow dissolution".  X-ray crystallography shows that this material is composed of Ba²⁺ cations attached to a polyphosphate ((PO₃⁻)ₙ) anion. A number of hydrated forms are known which are actually cyclic metaphosphates, Ba₂(P₄O₁₂)·3.5H₂O, Ba₃(P₃O₉)₂·6H₂O.
caption: Structure of a subunit of linear polyphosphate anion.
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