磷酸

ACS reagent

3.4 (vs air)

5 mmHg ( 25 °C), 2.2 mmHg ( 20 °C)

≥85% H₃PO₄ basis (by NaOH, titration)

liquid

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≥85 wt. % in H₂O

NMR: suitable

reducing substances, passes test, ≤0.001% volatile acids (as CH₃COOH)

APHA: ≤10

158 °C (lit.)

~40 °C (lit.)

water: soluble (98 g/l at 20 °C)

1.685 g/mL at 25 °C (lit.)

chloride (Cl^-): ≤3 ppm, nitrate (NO₃^-): ≤5 ppm, sulfate (SO₄^2-): ≤0.003%

As: ≤1 ppm, Ca: ≤0.002%, Fe: ≤0.003%, K: ≤0.005%, Mg: ≤0.02%, Mn: ≤0.5 ppm, Na: ≤0.025%, Sb: ≤0.002%, heavy metals: ≤0.001% (by ICP)

Enabling

OP(O)(O)=O

1S/H3O4P/c1-5(2,3)4/h(H3,1,2,3,4)

NBIIXXVUZAFLBC-UHFFFAOYSA-N

human ... SRC(6714)