English En

Sodium carbonate anhydrous, for analysis, ExpertQ®, ACS, ISO, Reag. Ph Eur

- Synonyms: Anhydrous soda
- Na2CO3
- M = 105,99 g/mol
- CAS [497-19-8]
- EINECS-No.: 207-838-8
- Solub. in water: (20 ºC): 220 g/l
- Melting point: 854 ºC
- Boiling point: 1600 ºC (decomposes)
- LD 50 (oral, rat): 4090 mg/kg
- EC-Index-No.: 011-005-00-2
- GHS-signal word: Warning
- GHS-H sentences: H319
- GHS-P sentences: P280 - P264 - P305+P351+P338 - P337+P313
- Tariff number: 2836 20 00 00
- Applications: analytical chemistry, laboratory reagent, to make sodium salts, manufacture of glass, detergent, in the textile industry, photography, in the pharmaceutics industry, in food industry (E 500).

SPECIFICATIONS
assay (acidimetric, on dried sample): min. 99,8 %
identity (IR-spectrum): passes test
insoluble in water: max. 0,01 %
chlorides (Cl): max. 0,001 %
phosphates (as PO4): max. 0,001 %
phosphates and silicates (as SiO2): max. 0,005 %
silica (SiO2): max. 0,005 %
total nitrogen (as N): max. 0,001 %
aluminium (Al): max. 0,001 %
arsenic (As): max. 1 ppm
calcium (Ca): max. 0,005 %
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 5 ppm
magnesium (Mg): max. 5 ppm
potassium (K): max. 0,005 %
sulphur compounds (as SO4): max. 0,003 %
loss on drying (300 °C): max. 1,0 %