Potassium Sulfate GR 500 Grm
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Manufacturer: Merck
Catalog ID: 105153.0500
Stock: In Stock
Description
Catalogue Number | 105153 |
Replaces | PX1595; PX1595-1; PX1595-5; PX1595-6; PX1595-20 |
Synonyms | Potassium pyrosulfate |
Product Information
CAS number | 7778-80-5 |
EC number | 231-915-5 |
Grade | ACS,ISO,Reag. Ph Eur |
Hill Formula | K₂O₄S |
Chemical formula | K₂SO₄ |
Molar Mass | 174.26 g/mol |
HS Code | 3105 10 00 |
Physicochemical Information
Boiling point | 1689 °C (1013 hPa) |
Density | 2.66 g/cm3 (20 °C) |
Melting Point | 1069 °C |
pH value | 5.5 - 8.5 (50 g/l, H₂O, 20 °C) |
Bulk density | 800 kg/m3 |
Solubility | 111 g/l |
Toxicological Information
LD 50 oral | LD50 Rat 6600 mg/kg |
Storage and Shipping Information
Storage | Store at +5°C to +30°C. |
Specifications
Assay (alkalimetric) | ≥ 99.0 % |
Insoluble matter | ≤ 0.01 % |
pH-value (5 %; water, 25 °C) | 5.5 - 7.5 |
Chloride (Cl) | ≤ 0.0005 % |
Total nitrogen (N) | ≤ 0.0005 % |
Heavy metals (as Pb) | ≤ 0.0005 % |
As (Arsenic) | ≤ 0.0002 % |
Ca (Calcium) | ≤ 0.005 % |
Fe (Iron) | ≤ 0.0005 % |
Mg (Magnesium) | ≤ 0.002 % |
Na (Sodium) | ≤ 0.02 % |
Corresponds to ACS,ISO,Reag. Ph Eur |