Article No.
Purity 97%
Molecular Formula NaOH
H.S. Code 2815.1110
Grade Extra Pure
CAS No. 1310-73-2
Molecular Weight 40.00
Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Solid Colour White Flakes
Odour Odorless pH value 13 - 14
Melting point/ Freezing point [°C] 318 °C Boiling point [°C] 1390°C
Vapour pressure [20°C] < 24 hPa at 20 °C Vapour density >1
Density [g/cm3] 2.13 Solubility in water [% weight] 111 g/100 g of water

Specifications

Appearance White flakes Assay Min. 97.0%
Insoluble matter in water Max. 0.05% Carbonate (as Na2CO3) Max. 2.0%
Chloride (Cl) Max. 0.05% Sulphate (SO4) Max. 0.05%
Heavy metal (as Pb) Max. 0.005% Arsenic (As) Max. 0.0003%
Iron (Fe) Max. 0.005%

Safety Information and Hazard Symbols

Corrosion              

Symbol: GHS05
Signal Word: Danger
UN No.: 1823
IMCO Class No.: 8
Packing Group: II
Hazardous Statement: H314
Precaution Statement: P280-P305 + P351 + P338-P310