Hydrochloric Acid 33%
- CAS
- 7647-01-0
- Grade
- Technical
- Purity
- 31-33% w/w
Also known as Sodium hydroxide, lye, caustic soda beads
High-purity sodium hydroxide pearls for soap making, pH correction, CIP cleaning and general process use.
The safety data sheet for this product is supplied with every consignment and is available on request — ask us for a copy.
Caustic soda pearls dissolve quickly and cleanly, which makes them the practical choice wherever a strong alkali has to be made up on site. Supplied in moisture-resistant bags because the pearls take up water from the air readily.
Widely used in saponification, effluent neutralisation, drain and pipe cleaning formulations, and as a pH regulator in water treatment.
| Assay (NaOH) | min. 99.0% |
|---|---|
| Sodium carbonate | max. 0.5% |
| Sodium chloride | max. 0.05% |
| Iron (Fe) | max. 10 ppm |
| Bulk density | approx. 1.1 g/cm³ |
| Standard packaging | 25 kg PP bag |
| HS code | 2815.11 |
| EC number | 215-185-5 |
Always add caustic to water, never water to caustic: the reaction is strongly exothermic and can boil violently. Wear chemical splash goggles, a face shield and nitrile or neoprene gloves.
Store in a cool, dry, well-ventilated area away from acids, aluminium and zinc. Keep bags sealed; absorbed moisture causes the pearls to cake.