Phosphoric acid
CAS Number7664-38-2
FormulaH3PO4
Mol. Weight98.00 g/mol
Phosphoric acid
What is Phosphoric acid?
Phosphoric acid is a chemical compound with CAS number 7664-38-2 and molecular formula H3PO4. It is used in various industrial and research applications.
Specifications
Linear Formula
H3PO4
Molecular Weight
98.00 g/mol
Grade
ACS reagent
Assay/Purity
≥85.0%
Impurities
reducing substances, passes test
≤0.001% volatile acids (as CH3COOH)
Boiling Point
158 °C(lit.)
Density
1.685 g/mL at 25 °C(lit.)
Solubility
H2O: soluble
Safety Information
GHS05Signal Word
Danger
Hazard Statements
H290-H314
Precautionary Statements
P280-P305 + P351 + P338-P310
Required PPE
Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Melting Point
~40 °C(lit.)
Anion Traces
chloride (Cl-): ≤3 ppm
nitrate (NO3-): ≤5 ppm
sulfate (SO42-): ≤0.003%
Cation Traces
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 (as Pb): ≤0.001%
EC Number
231-633-2
WGK Germany
1