or
Sodium hydroxide^ Sodium hydroxide, pellets for analysis (max. 0.02% K) EMSURE* ACS,Reag. Ph Eur, CAS number:: 1310-73-2, Grade: ACS,Reag. Ph Eur, Chemical Formula: NaOH, Storage: Store at +5 degree Celcius to +30 degree Celcius, size: 12kg