Sodio carbonato decaidrato, per analisi, ExpertQ®, ISO, Reag. Ph Eur

- Synonyms: Soda decahydrate
- Na2CO3·10H2O
- M = 286,14 g/mol
- CAS [6132-02-1]
- EINECS-No.: 207-838-8
- Solub. in water: (20 ºC): ~ 210 g/l
- Melting point: 33 ºC
- LD 50 (oral, rat): 4090 mg/kg (anhydrous substance)
- 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, for pharmaceutical use, in food industry (E 500), in the textile industry, whitener agent.

SPECIFICATIONS
assay (acidimetric): 99,0 - 102,0 %
assay (acidimetric, as Na2CO3): 36,7 - 40,0 %
identity (IR-spectrum): passes test
appearance of solution: passes test
chlorides (Cl): max. 0,001 %
phosphates and silicates (as SiO2): max. 0,003 %
sulfates (SO4): max. 100 ppm:
total nitrogen (as N): max. 5 ppm
total sulphur (as SO4): max. 0,003 %
aluminium (Al): max. 5 ppm
arsenic (As): max. 2 ppm
calcium (Ca): max. 0,002 %
heavy metals (as Pb): max. 5 ppm
iron (Fe): max. 2 ppm
magnesium (Mg): max. 2 ppm
potassium (K): max. 0,005 %