- HHydrogen × 2
- NaSodium × 2
- OOxygen × 2
Overview
Caustic soda, or sodium hydroxide, is a strong alkali that neutralises acids, turns fats into soap and breaks down organic soils. In flake form it is easy to weigh, store and dissolve on site.
Our flakes contain at least 99% sodium hydroxide with low carbonate and chloride content. They are packed in moisture-proof bags and stored under cover, so they reach you free-flowing rather than caked.
Handling note
Dissolving caustic soda releases a lot of heat. Add the flakes slowly to cold water while stirring, and wear gloves, goggles and protective clothing.
Typical properties
Batch-specific results are shown on the Certificate of Analysis supplied with every delivery.
| Chemical formula | NaOH |
|---|---|
| CAS number | 1310-73-2 |
| Grade | Technical grade, food grade on request |
| Purity or strength | ≥ 99% |
| Appearance | White, odourless flakes |
| Molecular weight | 40.00 g/mol |
| Density | 2.13 g/cm³ |
| Hazard class | Class 8 corrosive |
| UN number | UN 1823 |
| Minimum order | 1 bag (25 kg) |
Where Caustic Soda Flakes is used
Not sure it fits your process? Our technical team will advise on grade and dosing.
- 01Soap and detergent production
- 02Water treatment and pH adjustment
- 03Textile and paper processing
- 04Industrial cleaning
- 05Food processing (food grade)
Delivered the way you need it
Pack sizes
- 25 kg bag
- 1,000 kg big bag
- Pallet of 40 bags
Storage
Keep bags tightly closed in a dry place, as the flakes absorb moisture and carbon dioxide from the air. Store away from acids, aluminium and zinc.
Transport and safety
Class 8 corrosive, UN 1823. Delivered by drivers trained in hazardous goods. Read the Safety Data Sheet before use and wear the protective equipment it lists.
Paperwork, ready before the delivery
Request any document and we will email it, usually the same business day.
Ready to order Caustic Soda Flakes?
Share the product, grade and volume. Our team replies within one business day with pricing, lead time and the documents you'll need.
