Sodium hydroxide, solution 50% w/v, EssentQ®

- NaOH
- M = 40,00 g/mol
- CAS [1310-73-2]
- EINECS-No.: 215-185-5
- Density: ~ 1,4 g/cm3
- Solub. in water: (20 ºC): miscible
- Melting point: 12 ºC
- Boiling point: 143 ºC
- Vapour pressure: (20 ºC) 2 hPa
- EC-Index-No.: 011-002-00-6
- ADR: 8 C5 II UN 1824
- IMDG: 8 II UN 1824
- IATA/ICAO: 8 II UN 1824
- GHS-signal word: Danger
- GHS-H sentences: H314
- GHS-P sentences: P260 - P303+P361+P353 - P305+P351+P338 - P310 - P405 - P501a
- Tariff number: 2815 12 00 00
- Applications: analytical chemistry, laboratory reagent, solvents, for pharmaceutical use, for the synthesis of: inorganic salts.

SPECIFICATIONS
assay (acidimetric): approx. 50 %
carbonates (as Na2CO3): max. 1 %
chlorides (Cl): max. 0,002 %
phosphates (as PO4): max. 0,002 %
silicates (SiO2): max. 0,005 %
sulfates (SO4): max. 0,003 %
total nitrogen (as N): max. 0,002 %
aluminium (Al): max. 0,001 %
arsenic (As): max. 0,4 ppm
calcium (Ca): max. 0,005 %
copper (Cu): max. 0,001 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 0,001 %
lead (Pb): max. 0,001 %
magnesium (Mg): max. 0,005 %
nickel (Ni): max. 0,001 %