Polyphosphoric Acid 95% Min Polyphosphoric Acid 95% Min H4P2O6 Molecular Weight:337.93 PPA, %≥95P2O5, %≥68.8Color≤30Chloride(Cl), %≤0.0005SO4, %≤0.005Iron(Fe), %≤0.002Arsenic(As), %≤0.0001Heavy metal(Pb), %≤0.0005 Pack:in ISO Tank,IBC drum or in bulkUse:Use as cyclizing agent and acylating agent for compound in Organic Synthesis. Also use for phosphoric acid and analytically reagent. ...