Sodium Hydroxide Pellets 97% Extrapure
Caustic soda
Product Code. |
02420 |
Grade |
|
Purity |
97% |
CAS No. |
1310-73-2 |
Molecular Formula |
NaOH |
Molecular Weight |
40.00 |
H.S.Code |
2815.11900 |
Shelf Life |
60 Months |
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 |
Packaging
Specification
| Appearance | White deliquescent pellets or pearls |
| Assay (acidimetric) | Min 97% |
| Carbonate (as Na2CO3) | Max 1.0% |
| Chloride (Cl) | Max 0.01% |
| Sulphate (SO4) | Max 0.003% |
| Phosphate (PO4) | Max 0.002% |
| Silicate (SiO2) | Max 0.01% |
| Nitrogen compounds (as N) | Max 0.0005% |
| Heavy metal (as Pb) | Max 0.002% |
| Iron (Fe) | Max 0.001% |
| Arsenic (As) | Max 0.0004% |
| Potassium (K) | Max 0.1% |
Safety Information and Hazard Symbols
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