Sodium Dihydrogen Phosphate, 1Kg
for analysis EMSURE® Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 106342.1000
Stock: In Stock
Description
| Catalogue Number | 106342 |
| Synonyms | mono-Sodium orthophosphate, Sodium biphosphate, Sodium phosphate monobasic |
Product Information
| CAS number | 13472-35-0 |
| EC number | 231-449-2 |
| Grade | Reag. Ph Eur |
| Hill Formula | H₂NaO₄P * 2 H₂O |
| Chemical formula | NaH₂PO₄ * 2 H₂O |
| Molar Mass | 156.02 g/mol |
| HS Code | 2835 22 00 |
Physicochemical Information
| Density | 1.915 g/cm3 (20 °C) |
| Melting Point | 60 °C |
| pH value | 4.5 (12 g/l, H₂O, 25 °C) |
| Bulk density | 1000 kg/m3 |
| Solubility | 850 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 8290 mg/kg |
| LD 50 dermal | LD50 Rabbit > 7940 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Identity | passes test |
| Appearance of solution | passes test |
| Assay (alkalimetric, calculated on dried substance) | 99.0 - 100.5 % |
| In water insoluble matter (calculated on dried substance) | ≤ 0.15 % |
| pH-value (1 %, water) | 4.1 - 5.0 |
| pH-value (5 %; water) | 4.2 - 4.5 |
| Chloride (Cl) | ≤ 0.0005 % |
| Fluoride (F) | ≤ 0.001 % |
| Total nitrogen (as N) | ≤ 0.001 % |
| Hydrogenphosphate (HPO₄) | ≤ 0.5 % |
| Sulfate (SO₄) | ≤ 0.01 % |
| Heavy metals (as Pb) | ≤ 0.0005 % |
| Al, Ca and other elements detectable with ammonia | passes test |
| As (Arsenic) | ≤ 0.00005 % |
| Ca (Calcium) | ≤ 0.005 % |
| Cd (Cadmium) | ≤ 0.0001 % |
| Co (Cobalt) | ≤ 0.005 % |
| Cu (Copper) | ≤ 0.005 % |
| Fe (Iron) | ≤ 0.001 % |
| Hg (Mercury) | ≤ 0.0001 % |
| K (Potassium) | ≤ 0.005 % |
| Mg (Magnesium) | ≤ 0.005 % |
| Ni (Nickel) | ≤ 0.005 % |
| Pb (Lead) | ≤ 0.0004 % |
| Zn (Zinc) | ≤ 0.025 % |
| Substances reducing potassium permanganate (as O) | passes test |
| Loss on drying (130 °C) | 21.5 - 24.0 % |
| Corresponds to Reag. Ph. Eur. |
