Sodium hydrogen carbonate, EssentQ®
- Synonyms: Sodium bicarbonate
- NaHCO3
- M = 84,01 g/mol
- CAS [144-55-8]
- EINECS-No.: 205-633-8
- Solub. in water: (20 ºC): 95,5 g/l
- Melting point: 270 ºC (decomposes)
- Vapour pressure: (30 ºC) 8,3 hPa
- LD 50 (oral, rat): 4220 mg/kg
- Tariff number: 2836 30 00 00
- Applications: analytical chemistry, laboratory reagent, to make sodium salts, for laboratory glassware cleaning, source of CO2 , in fire extinguishers, in food industry (E-500).
SPECIFICATIONS
assay (acidimetric): min. 99 %
pH (5 %, H2O): max. 8,6
carbonates (CO3): passes test
chlorides (Cl): max. 0,01 %
sulfates (SO4): max. 0,01 %
total nitrogen (as N): max. 0,003 %
aluminium (Al): max. 0,5 ppm
arsenic (As): max. 2 ppm
calcium (Ca): max. 0,01 %
copper (Cu): max. 0,001 %
iron (Fe): max. 0,001 %
lead (Pb): max. 5 ppm
zinc (Zn): max. 0,001 %
loss on drying (silica gel): max. 0,2 %
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