Potassium Dihydrogen Phosphate 250Grm
for analysis EMSURE® ISO
Manufacturer: Merck
Catalog ID: 104873.0250
Stock: In Stock
Description
| Catalogue Number | 104873 |
| Synonyms | mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic |
Product Information
| CAS number | 7778-77-0 |
| EC number | 231-913-4 |
| Grade | ISO |
| Hill Formula | H₂KO₄P |
| Chemical formula | KH₂PO₄ |
| Molar Mass | 136.08 g/mol |
| HS Code | 2835 24 00 |
Physicochemical Information
| Density | 2.33 g/cm3 (21.5 °C) |
| Melting Point | 253 °C (decomposition) |
| pH value | 4.2 - 4.6 (20 g/l, H₂O, 20 °C) |
| Bulk density | 1200 kg/m3 |
| Solubility | 208 g/l |
Toxicological Information
| LD 50 dermal | LD50 Rabbit > 4640 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (alkalimetric, calculated on dried substance) | 99.5 - 100.5 % |
| Assay (alkalimetric; dried substance) | ≥ 99.5 % |
| pH-value (5 %; water) | 4.2 - 4.5 |
| Chloride (Cl) | ≤ 0.0005 % |
| Sulfate (SO₄) | ≤ 0.003 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Heavy metals (as Pb) | ≤ 0.0010 % |
| As (Arsenic) | ≤ 0.0002 % |
| Cu (Copper) | ≤ 0.0003 % |
| Fe (Iron) | ≤ 0.0010 % |
| Na (Sodium) | ≤ 0.02 % |
| Pb (Lead) | ≤ 0.001 % |
| Reducing substances | passes test |
| Loss on drying (110 °C) | ≤ 0.2 % |
| Loss on drying (130 °C) | ≤ 0.2 % |
| Correspons to ISO |
