pH Down - 55%
$148.00Price
CAS Number
- 7664-38-2
3D model (JSmol)
- Interactive image
ChEBI - CHEBI:26078
ChEMBL - ChEMBL1187
ChemSpider - 979
ECHA InfoCard 100.028.758 EC Number - 231-633-2
E number E338 (antioxidants, ...) KEGG - D05467
PubChem CID
- 1004
RTECS number - TB6300000
UNII - E4GA8884NN
UN number 1805 CompTox Dashboard (EPA)
- DTXSID5024263
Chemical formula
H3PO4 Molar mass 97.994 g·mol−1 Appearance colorless syrup Odor Odorless Density 1.6845 g⋅cm−3 (25 °C, 85%),[1] 1.834 g⋅cm−3 (solid)[2] Melting point 40–42.4 °C (104.0–108.3 °F; 313.1–315.5 K)[4] Boiling point 212 °C (414 °F; 485 K)[10] Solubility in water
- 392.2 g/100 g (−16.3 °C)
- 369.4 g/100 mL (0.5 °C)
- 446 g/100 mL (15 °C)[3]
- 548 g/100 mL (20 °C)[4]
Solubility Soluble in ethanol log P −2.15[5] Vapor pressure 0.03 mmHg (20 °C)[6] Conjugate base Dihydrogen phosphate Magnetic susceptibility (χ)
−43.8·10−6 cm3/mol[8] Refractive index (nD)
- 1.3420 (8.8% w/w aq. soln.)[9]
- 1.4320 (85% aq. soln) 25 °C
Viscosity 2.4–9.4 cP (85% aq. soln.)
147 cP (100%)
