Caustic Soda Flakes 99%
Sodium hydroxide flakes at 99% minimum purity for soap and detergent manufacture, water treatment, mining and pulp processing.

Caustic soda flakes are the practical form for buyers without bulk liquid handling: they ship dry in bags, dissolve readily and avoid the freight cost of transporting water. The trade-off is that flakes are strongly hygroscopic and must stay sealed.
We quote to a 99% minimum NaOH specification with stated limits on sodium carbonate, sodium chloride and iron, since iron content matters in soap and textile applications where product colour is critical.
Caustic soda is a Class 8 corrosive. Bags are palletised and shrink-wrapped, and the container is lined to protect against moisture ingress during the voyage. The dangerous goods declaration forms part of the standard document set.
Industrial grade, 99% minimum
- · 25 kg PP bags with PE liner
- · 1,000 kg jumbo bags
Container lots to multi-container monthly supply
20ft: 1,000 × 25 kg bags (25 t) palletised, container lined
14–28 days from confirmed order
- · Batch certificate of analysis
- Soap and detergent saponification
- Water and effluent treatment
- Pulp and paper processing
- Alumina and mineral processing
- Textile mercerisation
- Commercial Invoice
- Packing List
- Bill of Lading
- Certificate of Origin
- Certificate of Analysis
- Safety Data Sheet
- Dangerous Goods Declaration
- FOB
- CFR
- CIF
- Durban
- Mombasa
- Dar es Salaam
- Beira
- Lagos
Frequently asked
How is caustic soda protected during shipment?
Bags are lined, palletised and shrink-wrapped, and the container is lined against moisture, since the flakes are strongly hygroscopic.
Can you supply jumbo bags instead of 25 kg bags?
Yes, in 1,000 kg jumbo bags where your discharge and handling equipment suits them.
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