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Sodium hydroxide (Caustic soda)


Parameters Sodium hydroxide (Caustic soda)
Appearance (physical state, colour): Light yellow liquid, residues available
Odour: Hardly odourless
PH: 50 g/l aqueous solution 200C: 13 - 14
Melting / freezing point,0C:  120C (at 50%),  10C  (at 30%), -230C (at 20%)
Initial boiling point, 0C: 1420C (at 50%), 1180C (at 30%), 1080C (at 20%), 
Inflammability Nonflammable
Specific mass, g/cm3 2,02 - 2,13
Solubility in water 109 g/100 ml 200C (42 g/100 ml 00C, 335 g/100ml 1000C).