Description
Caustic Soda Flakes 99% (Sodium Hydroxide)
Caustic Soda Flakes 99% (Sodium Hydroxide) (CAS 1310-73-2, molecular formula NaOH) is a core commodity reagent used wherever reliable acid or alkali strength matters — from surface treatment and pH correction to downstream salt manufacture. China Chemicals supplies it at 99% min in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as Sodium Hydroxide, Lye, Caustic Soda. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Soap and detergent saponification
- Pulp and paper kraft pulping
- Alumina refining and metal processing
- Effluent neutralisation and pH correction
- CIP caustic cleaning in food and beverage plants
Technical specification
| Chemical name | Caustic Soda Flakes 99% (Sodium Hydroxide) |
|---|---|
| Synonyms | Sodium Hydroxide, Lye, Caustic Soda |
| CAS number | 1310-73-2 |
| Molecular formula | NaOH |
| Appearance | White flakes, hygroscopic |
| Assay NaOH | 99.0% min |
| Sodium carbonate | 0.5% max |
| Sodium chloride | 0.1% max |
| Iron (Fe2O3) | 0.005% max |
| Appearance | White flakes |
| Packaging | Moisture-barrier lined |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: UN1823 · Corrosive, Class 8. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
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