Potassio carbonato, per analisi, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Potash
- K2CO3
- M = 138,21 g/mol
- CAS [584-08-7]
- EINECS-No.: 209-529-3
- Solub. in water: (20 ºC): soluble
- Melting point: 891 ºC
- LD 50 (oral, rat): > 2000 mg/kg
- GHS-signal word: Warning
- GHS-H sentences: H315 - H319 - H335
- GHS-P sentences: P261 - P280 - P305+P351+P338 - P321 - P405 - P501a
- Tariff number: 2836 40 00 00
- Applications: analytical chemistry, laboratory reagent, manufacture of glass, in the ceramics industry, inorganic salts, cosmetics.

SPECIFICATIONS
assay (acidimetric, on dried sample): min. 99,0 %
assay (acidimetric): min. 99,0 %
identity (IR-spectrum): passes test
insoluble matter: max. 0,005 %
chlorides (Cl): max. 0,003 %
phosphates (as PO4): max. 0,001 %
phosphates and silicates (as SiO2): max. 0,005 %
silicates (SiO2): max. 0,005 %
total nitrogen (as N): max. 0,001 %
total sulphur (as SO4): max. 0,003 %
calcium (Ca): max. 0,002 %
copper (Cu): max. 5 ppm
heavy metals: max. 5 ppm
iron (Fe): max. 5 ppm
lead (Pb): max. 5 ppm
magnesium (Mg): max. 0,002 %
sodium (Na): max. 0,02 %
loss on drying (300 °C): max. 1,0 %