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| LC4930 Potassium dihydrogen phosphate for analysis (<= 0.005% Na) EMSURE ACS,ISO,Reag. Ph Eur |
| Order number | Packaging | Quantity | Price € |
| AC31930 | Plastic bottle | 1 kg | 45.9 |
| AC31930 | Fibre carton | 25 kg | Inquire |
| Product information | |
| Grade | ACS,ISO,Reag. Ph Eur |
| Synonyms | mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic |
| Hill Formula | H2KO4P |
| Chemical formula | KH2PO4 |
| HS Code | 2835 24 00 |
| EC number | 231-913-4 |
| Molar mass | 136.08 g/mol |
| CAS number | 7778-77-0 |
| Chemical and physical data | |
| Solubility | 222 g/l (20 °C) |
| Melting point | ca.253 °C (decomposition) |
| Molar mass | 136.08 g/mol |
| Density | 2.34 g/cm3 (20 °C) |
| Bulk density | 1200 kg/m3 |
| pH value | 4.4 (50 g/l, H2O, 20 °C) |
| Safety information | |
| RTECS | TC6615500 |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). |
| Transport information | |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Toxicological data | |
| LD 50 oral | LD50 rabbit > 4640 mg/kg |
| Specifications | |
| Assay – alkalimetric |
≥ 99.0 % |
| – alkalimetric, calculated on dried substance | 98.0 – 100.5 % |
| – alkalimetric over dried substance | ≥ 99.5 % |
| Identity | passes test |
| Clarity of solution | passes test |
| Insoluble substances | ≤ 0.01 % |
| pH-value (5 %; water, 25 °C) | 4.2 – 4.5 |
| Chloride (Cl) | ≤ 0.0005 % |
| Sulphate (SO4) | ≤ 0.003 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Heavy metals (as Pb) | ≤ 0.001 % |
| As (Arsenic) | ≤ 0.0002 % |
| Fe (Iron) | ≤ 0.001 % |
| Na (Sodium) | ≤ 0.005 % |
| Reducing substances | passes test |
| Loss on drying (130 °C) | ≤ 0.2 % |