- Synonyms: Caustic soda
- NaOH
- M = 40,00 g/mol
- CAS [1310-73-2]
- EINECS-No.: 215-185-5
- Solub. in water: (20 ºC): soluble
- Melting point: 315 ºC
- Boiling point: 410 ºC
- EC-Index-No.: 011-002-00-6
- ADR: 8 C6 II UN 1823
- IMDG: 8 II UN 1823
- IATA/ICAO: 8 II UN 1823
- GHS-signal word: Danger
- GHS-H sentences: H314
- GHS-P sentences: P260 - P303+P361+P353 - P305+P351+P338 - P310 - P405 - P501a
- Tariff number: 2815 11 00 00
- Applications: solutions: to neutralize acids, to make sodium salts, to precipitate metals (as hydroxides) from water solutions of their salts.
SPECIFICATIONS
assay (acidimetric): 97,0 - 100,5 %
sodium (Na): 54,0 - 59,8 %
Identification sodium: passes test
pH : min. 11,0
appearance of solution: clear and colourless
carbonates (as Na2CO3): max. 2,0 %
chlorides (Cl): max. 200 ppm
sulfates (SO4): max. 200 ppm
potassium (K): max. 0,5 %
iron (Fe): max. 10 ppm
organic matter: passes test