Potassium Carbonate
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 104928.1000
Stock: In Stock
Description
Catalogue Number | 104928 |
Replaces | PX1390; PX1390-1; PX1390-20 |
Synonyms | potash |
Product Information
CAS number | 584-08-7 |
EC number | 209-529-3 |
Grade | ACS,ISO,Reag. Ph Eur |
Hill Formula | CK₂O₃ |
Chemical formula | K₂CO₃ |
Molar Mass | 138.21 g/mol |
HS Code | 2836 40 00 |
Physicochemical Information
Density | 2.43 g/cm3 (20 °C) |
Melting Point | 891 °C |
pH value | 11.5 - 12.5 (50 g/l, H₂O, 20 °C) |
Bulk density | 750 kg/m3 |
Solubility | 1120 g/l |
Toxicological Information
LD 50 oral | LD50 Rat > 2000 mg/kg |
Storage and Shipping Information
Storage | Store at +5°C to +30°C. |
Specifications
Assay (acidimetric; calculated on dried substance) | ≥ 99.0 % |
Assay (acidimetric) | ≥ 99.0 % |
Insoluble matter | ≤ 0.005 % |
Chloride (Cl) | ≤ 0.003 % |
Phosphate (PO₄) | ≤ 0.001 % |
Silicate (SiO₂) | ≤ 0.005 % |
Total sulfur (as sulfate) | ≤ 0.003 % |
Total nitrogen (N) | ≤ 0.001 % |
Heavy metals (ACS) | ≤ 0.0005 % |
Ca (Calcium) | ≤ 0.002 % |
Cu (Copper) | ≤ 0.0005 % |
Fe (Iron) | ≤ 0.0005 % |
Mg (Magnesium) | ≤ 0.001 % |
Na (Sodium) | ≤ 0.02 % |
Pb (Lead) | ≤ 0.0005 % |
Substances precipitated by ammonia | ≤ 0.01 % |
Loss on drying (300 °C) | ≤ 1.0 % |
Corresponds to ACS, ISO, Reag. Ph Eur |