Phosphoric acid
ALDRICH/466123 - crystalline, ≥99.999% trace metals basis
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: 466123-100G
This image depicts SKU: 466123-100G
| assay | ≥99.999% trace metals basis |
| bp | 158 °C (lit.) |
| density | 1.685 g/mL at 25 °C (lit.) |
| 1.830 g/mL at 25 °C | |
| form | crystalline |
| greener alternative category | Enabling  |
| greener alternative product characteristics | Design for Energy Efficiency Learn more about the Principles of Green Chemistry . |
| InChI | 1S/H3O4P/c1-5(2,3)4/h(H3, |
| InChI key | NBIIXXVUZAFLBC-UHFFFAOYSA |
| mp | 41-44 °C |
| ~40 °C (lit.) | |
| Quality Level | 200 |
| SMILES string | OP(O)(O)=O |
| sustainability | Greener Alternative Product |
| vapor density | 3.4 (vs air) |
| vapor pressure | 2.2 mmHg ( 20 °C) |
| 5 mmHg ( 25 °C) |
| Application: | Industrially, phosphoric acid may be used in pharmaceuticals, water softeners. |
| General description: | Anhydrous phosphoric acid is a white solid which melts at 42.35oC to form a viscous liquid. In aqueous solution phosphoric acid behaves as a triprotic acid, having three ionizable hydrogen atoms. |
| 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: | 25, 100 g in poly bottle |
| Packaging: | Packaged in poly bottles |
| 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 | ≥99.999% trace metals basis |
| bp | 158 °C (lit.) |
| mp | ~40 °C (lit.); 41-44 °C |
| Density | 1.685 g/mL at 25 °C (lit.); 1.830 g/mL at 25 °C |
| UNSPSC | 12352300 |