Liquid Caustic Soda
Sodium hydroxide solution · Caustic soda lye · Caustic liquor
- HSN code
- 281512
- CAS number
- 1310-73-2
Caustic Soda (solid)
Exporter & supplier, HSN 281511, Inorganics
Solid caustic soda (sodium hydroxide) is a strong alkali sold as flakes or pearls. It is used for soap making, pH adjustment, alumina and pulp processing, textile mercerising and cleaning. It is highly corrosive and gives off heat when dissolved.
Also known as: Sodium hydroxide, NaOH, Caustic soda flakes, Caustic soda pearls, Lye
Key facts
- HSN code
- 281511
- CAS number
- 1310-73-2
- Group
- Inorganics
Where is Caustic Soda (solid) used?
- Saponification in soap and detergent manufacture
- pH control and neutralisation in water and effluent treatment
- Pulp and paper processing, and alumina refining
- Textile scouring and mercerising of cotton
- Industrial and food-plant cleaning (CIP), and as a catalyst in biodiesel
Industries
- Soaps and detergents
- Water treatment
- Textiles
- Pulp and paper
- Aluminium
- Food processing
- Chemicals
Packaging
- Polyethylene-lined bags
- Woven polypropylene bags
- Jumbo bags (FIBCs)
- Steel or plastic drums
Tell us the packaging you prefer when you request a quote.
Handling, storage and hazards
Handling and storage
- Keep bags sealed and store dry; flakes absorb moisture and carbon dioxide from air and cake.
- Always add caustic soda slowly to water while stirring, never water to caustic soda, to avoid violent boiling and spattering.
- Wear chemical goggles or a face shield, alkali-resistant gloves and protective clothing.
- Keep away from acids, aluminium, zinc and tin; it reacts with these metals to release flammable hydrogen.
Hazards
- Causes severe skin burns and eye damage; eye contact can cause blindness.
- Dissolving or neutralising it releases a lot of heat.
- May be corrosive to metals such as aluminium and zinc.
General hazard information, not a substitute for the safety data sheet.
SDS available on request
Questions about Caustic Soda (solid)
What is the difference between caustic soda flakes and pearls?
Only the physical shape. Flakes are thin scales; pearls (prills) are small beads that flow more freely and give off less dust. Chemically both are sodium hydroxide.
Is caustic soda the same as soda ash?
No. Caustic soda is sodium hydroxide, a much stronger alkali. Soda ash is sodium carbonate. They have different HSN codes and different uses.
How should caustic soda flakes be dissolved?
Add the flakes slowly to cold water while stirring, never the other way round. The solution heats up sharply, so use a heat-resistant vessel and full eye and skin protection.
When should I buy solid caustic soda instead of liquid?
Solid is usually chosen when freight distance is long or usage is small, since you do not pay to ship water. Liquid caustic suits plants that dose continuously and have tank storage.
Is an SDS available for caustic soda?
Yes, an SDS is available on request.
Do you export Caustic Soda (solid)?
Yes. Goodbiz Chem exports and supplies Caustic Soda (solid) (HSN 281511). Send a quote request with quantity, packaging and destination port; SDS available on request.
Related products
LABSA
Linear alkylbenzene sulphonic acid · Linear alkyl benzene sulfonic acid · Dodecylbenzenesulphonic acid
- HSN code
- 340231
- CAS number
- 27176-87-0 +2
Copper Sulphate
Copper(II) sulphate · Copper sulfate · Cupric sulphate
- HSN code
- 283325
- CAS number
- 7758-99-8 +1
Further reading
How is LABSA used in detergent manufacturing?
What LABSA is, why it must be neutralised before it cleans, and how detergent makers use it in powders, liquids and dishwash products.
HSN codes for chemical exports: what do the digits mean?
How HS and HSN codes are built, why India uses 8 digits where the world uses 6, and how to read the codes on a chemical product listing.
Looking for something else? We also source chemicals not listed here.
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Caustic Soda (solid)
HSN 281511