Phosphoric acid
SIGALD/79622 - puriss. p.a., crystallized, ≥99.0% (T)
Synonym: Orthophosphoric acid
CAS Number: 7664-38-2
Empirical Formula (Hill Notation): H3O4P
Molecular Weight: 98.00
EC Number: 231-633-2
MDL Number: MFCD00011340
Linear Formula: H3PO4
Product Type: Chemical
anion traces | chloride (Cl-): ≤5 mg/kg |
nitrate (NO3-): ≤5 mg/kg | |
phosphite, hypophosphite (as H3PO3): ≤500 mg/kg | |
sulfate (SO42-): ≤30 mg/kg | |
assay | ≥99.0% (T) |
bp | 158 °C (lit.) |
cation traces | As: ≤1 mg/kg |
Ca: ≤10 mg/kg | |
Cd: ≤1 mg/kg | |
Co: ≤1 mg/kg | |
Cr: ≤1 mg/kg | |
Cu: ≤1 mg/kg | |
Fe: ≤10 mg/kg | |
K: ≤5 mg/kg | |
Mg: ≤1 mg/kg | |
Mn: ≤1 mg/kg | |
Na: ≤50 mg/kg | |
Ni: ≤1 mg/kg | |
Pb: ≤1 mg/kg | |
Zn: ≤1 mg/kg | |
density | 1.685 g/mL at 25 °C (lit.) |
form | powder or crystals |
grade | puriss. p.a. |
impurities | ≤0.002% KMnO4-reducing matter (as O) |
InChI | 1S/H3O4P/c1-5(2,3)4/h(H3, |
InChI key | NBIIXXVUZAFLBC-UHFFFAOYSA |
mp | ~40 °C |
~40 °C (lit.) | |
quality | crystallized |
Quality Level | 200 |
SMILES string | OP(O)(O)=O |
solubility | water: 850 g/L at 20 °C |
vapor density | 3.4 (vs air) |
vapor pressure | 2.2 mmHg ( 20 °C) |
5 mmHg ( 25 °C) |
Application: | Phosphoric acid has been employed as an oxidation reagent in a study.1 It may be used in the preparation of ammonium phosphate. |
Application: | Phosphoric acid is used: • As a catalyst in the nucleophilic addition to imines. • In the synthesis of porous phosphoric acid-based geopolymers. • In the synthesis of mono-alkyl phosphates from simple aliphatic alcohols in the presence of acetic anhydride activator. |
Caution: | product may become solid, becomes liquid on heating to 50°C |
General description: | Phosphoric acid (H3PO4) is also known as orthophosphoric acid. It serves as an intermediary or reagent in various manufacturing processes. Phosphoric acid is found in fertilizers, detergents, and other household cleaning products. |
General description: | The product is crystalline phosphoric acid. |
Other Notes: | Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous). |
Packaging: | 1 kg in glass bottle |
Packaging: | 100, 500 g in glass bottle |
Symbol | GHS05,GHS07 |
Signal word | Danger |
Hazard statements | H290 - H302 - H314 |
Precautionary statements | P234 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
Hazard Codes | C |
Risk Statements | 34 |
Safety Statements | 26-45 |
RIDADR | UN 3453 8 / PGIII |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥99.0% (T) |
bp | 158 °C (lit.) |
mp | ~40 °C (lit.); ~40 °C |
Density | 1.685 g/mL at 25 °C (lit.) |
UNSPSC | 12352106 |