Caustic Soda Flakes
Caustic soda (sodium hydroxide) is a white, strongly alkaline solid with very wide use. Our flakes are made by membrane electrolysis, so they are free of heavy metals and available in food and industrial super grades.
Applications
- Alumina refining
- Pulp and paper
- Soaps and detergents
- Oil and gas
- Mining and drilling
- Food industry
- Chemical production
Packaging
- 25 kg 2-ply polypropylene bags, on shrink-wrapped pallets or inside 2-ply jumbo bags.
- Pallet option: 50 bags per pallet, 20 pallets per truck.
- Jumbo option: 50 bags per jumbo bag, 20 jumbo bags per truck.
Caustic Soda Flakes 98–99%
NaOH
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Technical data sheet
| Parameter | Standard limit | Our specification | Method |
|---|---|---|---|
| Purity of Sodium Hydroxide _ %w/w | Min 98 | Min 98 | ISIRI 364 |
| Carbonate as Na2CO3 _ %w/w | Max 1 | Max 0.5 | ISIRI 364 |
| Chloride as NaCl _ %w/w | Max 0.06 | Max 0.02 | ISIRI 364 |
| Sulfate as Na2SO4 _ %w/w | Max 0.01 | Max 0.005 | ISIRI 364 |
| Silicate as SiO2 _ %w/w | Max 0.02 | Max 0.005 | ISIRI 364 |
| Fe _ mg/Kg | Max 30 | Max 15 | ISIRI 364 |
| Insoluble in Water _ %w/w | Max 0.1 | 0.00 | ISIRI 364 |
| Aluminum as Al2O3 _ mg/Kg | Max 20 | Max 20 | ISIRI 364 |
| Heavy Metals as Pb _ mg/Kg | Max 20 | Max 20 | ISIRI 364 |
| Mercury as Hg _ mg/Kg | Max 0.2 | Max 0.15 | ISIRI 364 |
| Arsenic as As2O3 _ mg/Kg | Max 2 | Max 0.5 | ISIRI 364 |
| Appearance | White, free of visible impurities | OK | ISIRI 364 |
Producer certifications: ISO 9001, ISO 14001, ISO 45001, ISO 10002, ISO 10004, ISO 10015, ISO/IEC 17025 accredited laboratory, IQNet, Sedex and REACH (ECHA). Certificate copies are available on request.