| CAS number | 7664-38-2 |
| Molecular formula | H3O4P |
| Product name | 7664-38-2, Phosphoric acid |
| Molecular Structure | ![]() |
Melting point ~40 °C(lit.)
Boiling point 158 °C(lit.)
density 1.685 g/mL at 25 °C(lit.)
vapor density 3.4 (vs air)
vapor pressure 2.2 mm Hg ( 20 °C)
refractive index n20/D 1.433
FEMA 2900 | PHOSPHORIC ACID
storage temp. no restrictions.
solubility H2O: soluble
pka 2.1-7.2-12.3(at 25℃)