Potassium Dihydrogen Phosphate Crystals 1kg
cryst., EMPROVE® ESSENTIAL Ph Eur,BP,JPC,NF,E 340
Manufacturer: Merck
Catalog ID: 104871.1000
Stock: In Stock
Description
| Catalogue Number | 104871 |
| Synonyms | mono-Potassium orthophosphate, Potassium biphosphate, Potassium phosphate monobasic |
Product Information
| CAS number | 7778-77-0 |
| EC number | 231-913-4 |
| Grade | Ph Eur,BP,JPC,NF,E 340 |
| 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) | 98.0 - 100.5 % |
| Assay (alkalimetric; dried substance) | ≥ 99.0 % |
| Appearance of solution | passes test |
| Identity | passes test |
| Insoluble substances | ≤ 0.2 % |
| pH-value (1 %; water) | 4.2 - 4.8 |
| pH-value (2 %; water) | 4.2 - 4.6 |
| pH-value (5 %; water) | 4.2 - 4.5 |
| Carbonate | passes test |
| Condensed phosphate | passes test |
| Chloride (Cl) | ≤ 0.009 % |
| Fluoride (F) | ≤ 0.0010 % |
| Sulfate (SO₄) | ≤ 0.017 % |
| Heavy metals (as Pb) | ≤ 0.0010 % |
| Al (Aluminium) | ≤ 0.0005 % |
| As (Arsenic) | ≤ 0.0001 % |
| Cd (Cadmium) | ≤ 0.0001 % |
| Fe (Iron) | ≤ 0.0010 % |
| Hg (Mercury) | ≤ 0.0001 % |
| Na (Sodium) | ≤ 0.1 % |
| passes test | |
| Pb (Lead) | ≤ 0.0001 % |
| Residual solvents (ICH Q3C) | excluded by manufacturing process |
| Reducing substances | passes test |
| Loss on drying (105 °C) | ≤ 0.5 % |
| Loss on drying (130 °C) | ≤ 1.0 % |
| Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). | |
| Corresponds to Ph Eur, BP, JPC, NF, E 340Conforms to the purity criteria on food additives according to the current European Commission Regulation. |
