Specification of Phosphoric Acid
CAS No. : 7664-38-2
EINECS No. : 231-633-2
Formula : H3PO4
Mol Wt. : 97.99
H.S.Code : 2809.10
Physical and Chemical Properties
Physical State : Clear syrupy liquid
Melting Point : 41 °C
Boiling Point : 158 °C
Specific Gravity : 1.69
Solubility In Water : Miscible
PH : 1.5 (0.1 N aqueous sol.)
Viscosity : 3.86 mPa at 20 C
Vapor Density : 3.4
Flash Point : Not considered to be a fire hazard
Stability : Stable under ordinary conditions.
Grade : 75% 85% 89%
Content (H3PO4) : 75.0% min 85.0% min 89.0% min
Cl 0.0005% max
Specific Gravity : 1.575 min 1.675 min 1.725 min
Color, APHA 30 max
