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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 79622-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 79622-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 79622-100G
| 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. |
| greener alternative category | Enabling  |
| greener alternative product characteristics | Design for Energy Efficiency Learn more about the Principles of Green Chemistry . |
| 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 |
| sustainability | Greener Alternative Product |
| 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. |
| Disclaimer: | 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. |
| General description: | The product is crystalline phosphoric acid. |
| General description: | We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives. Phosphoric acid-doped polybenzimidazole (PBI) membranes offer a cleaner path to energy by enabling high-temperature fuel cells that efficiently convert hydrogen into electricity with low emissions. Their durability and proton conductivity make them ideal for sustainable power systems. Click here  for more information. |
| 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 |