79614
Fluka
Phosphoric acid
TraceSELECT®, for trace analysis
| Synonym: | Orthophosphoric acid |
| CAS Number: | 7664-38-2 |
| Linear Formula: | H3PO4 |
| Molecular Weight: | 98.00 |
| Beilstein Registry Number: | 1921286 |
| EC Number: | 231-633-2 |
| MDL number: | MFCD00011340 |
| PubChem Substance ID: | 24887484 |
Description
| Caution | product may become solid; becomes liquid on heating to 50°C |
| Other Notes | Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous). |
| Legal Information | TraceSELECT is a registered trademark of Sigma-Aldrich Biotechnology LP and Sigma-Aldrich Co. |
Properties
| grade | for trace analysis |
| vapor density | 3.4 (vs air) |
| vapor pressure | 2.2 mmHg ( 20 °C) |
| 5 mmHg ( 25 °C) | |
| description | crystals |
| TraceSELECT® | |
| assay | ≥85.0% |
| bp | 158 °C(lit.) |
| mp | ~40 °C(lit.) |
| density | 1.685 g/mL at 25 °C(lit.) |
| cation traces | Al: ≤0.2 mg/kg |
| As: ≤0.05 mg/kg | |
| Ba: ≤0.05 mg/kg | |
| Ca: ≤0.2 mg/kg | |
| Cd: ≤0.05 mg/kg | |
| Cr: ≤0.1 mg/kg | |
| Cu: ≤0.05 mg/kg | |
| Fe: ≤0.2 mg/kg | |
| K: ≤0.2 mg/kg | |
| Li: ≤0.05 mg/kg | |
| Mg: ≤0.1 mg/kg | |
| Mn: ≤0.05 mg/kg | |
| Na: ≤0.2 mg/kg | |
| Ni: ≤0.05 mg/kg | |
| Pb: ≤0.05 mg/kg | |
| Sr: ≤0.1 mg/kg | |
| Zn: ≤0.05 mg/kg |
Safety
References
| reference | RegBook 1 (3), 3247:I |
