Calcium Carbonate 250grm
precipitated for analysis EMSURE® Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 102066.0250
Stock: In Stock
Description
| Catalogue Number | 102066 |
| Description | Calcium carbonate |
Product Information
| CAS number | 471-34-1 |
| EC number | 207-439-9 |
| Grade | Reag. Ph Eur |
| Hill Formula | CCaO₃ |
| Chemical formula | CaCO₃ |
| Molar Mass | 100.09 g/mol |
| HS Code | 2836 50 00 |
Physicochemical Information
| Melting Point | 825 °C (decomposition) |
| pH value | 9.5 - 10.5 (100 g/l, H₂O, 20 °C) (slurry) |
| Bulk density | 300 - 1400 kg/m3 |
| Solubility | 0.017 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 6450 mg/kg |
| LD 50 dermal | LD50 Rat > 2000 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Assay (complexometric; calculated on dried substance) | 98.5 - 100.5 % |
| Identity | passes test |
| Substances insoluble in acetic acid | ≤ 0.2 % |
| Substances insoluble in hydrochloric acid | ≤ 0.005 % |
| Chloride (Cl) | ≤ 0.005 % |
| Sulfate (SO₄) | ≤ 0.03 % |
| Heavy metals (as Pb) | ≤ 0.002 % |
| Total nitrogen (N) | ≤ 0.001 % |
| Al (Aluminium) | ≤ 0.005 % |
| As (Arsenic) | ≤ 0.0004 % |
| Ba (Barium) | passes test |
| Cu (Copper) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.001 % |
| K (Potassium) | ≤ 0.005 % |
| Mg (Magnesium) | ≤ 0.02 % |
| Na (Sodium) | ≤ 0.2 % |
| Pb (Lead) | ≤ 0.0005 % |
| Sr (Strontium) | ≤ 0.1 % |
| Magnesium and alkali metals | ≤ 1.5 % |
| Particle size (d 50) | about 14 µm |
| Loss on drying (200 °C) | ≤ 1.0 % |
| Corresponds to Reag. Ph Eur |
