Packings
05900
Article No. 05900
Purity 98%
Molecular Formula NaOH
H.S. Code 2815.1190
Grade AR
CAS No. 1310-73-2
Molecular Weight 40.00
Shelf Life 60 Months

Physical Properties

Specifications

Safety Information and Hazard Symbols

Symbol:


Physical Properties

Physical state at 20 °C Solid Colour White pellets
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 deliquescent pellets or pearls Assay (acidimetric) 98 - 100.5%
Identity (acc. to pharmacopoeias) Passes test Appearance of solution Passes test
Insoluble matter in water Max 0.025% Sodium carbonate (Na2CO3) Max 1.0%
Chloride (Cl) Max 0.005% Sulphate (SO4) Max 0.003%
Phosphate (PO4) Max 0.001% Silicate (SiO2) Max 0.001%
Total nitrogen (N) Max 0.0003% Heavy metal (as Pb) Max 0.002%
Iron (Fe) Max 0.001% Nickel (Ni) Max 0.001%
Calcium (Ca) Max 0.005% Potassium (K) Max 0.05%
Magnesium (Mg) Max 0.002% Mercury (Hg) Max 0.00001%

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