Phosphoric Acid, Meta
Structural Formula Vector Image
Title: Phosphoric Acid, Meta
CAS Registry Number: 37267-86-0
CAS Name: Metaphosphoric acid
Additional Names: glacial phosphoric acid
Literature References: (HPO3)n; H 1.26%, O 60.01%, P 38.73%.
Properties: Transparent, glass-like solid or soft silky masses; hygroscopic. Volatilizes at red heat. Very slowly sol in cold water, slowly changing to H3PO4, the change is hastened by boiling; sol in alcohol. Keep tightly closed. For greater convenience it is also marketed in form of rods made by the addition of sodium phosphate.
Use: In dentistry for making zinc oxyphosphate cement; as reagent in chemical analysis.

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