Caustic Soda (solid)
Sodium hydroxide · NaOH · Caustic soda flakes
- HSN code
- 281511
- CAS number
- 1310-73-2
Liquid Caustic Soda
Exporter & supplier, HSN 281512, Inorganics
Liquid caustic soda is sodium hydroxide dissolved in water, commonly traded near 48–50% or about 32% strength. It is easy to pump and meter, so it suits continuous dosing in water treatment, chemical processing, soap making and pulp bleaching.
Also known as: Sodium hydroxide solution, Caustic soda lye, Caustic liquor, Aqueous NaOH, Soda lye
Key facts
- HSN code
- 281512
- CAS number
- 1310-73-2
- Group
- Inorganics
Where is Liquid Caustic Soda used?
- Neutralising acids from LABSA to make detergent active (sodium LAS)
- pH correction in water and effluent treatment
- Pulp and paper bleaching and pulping chemistry
- Alumina, textile and chemical processing
- Clean-in-place (CIP) cleaning in dairies, breweries and food plants
Industries
- Water treatment
- Detergents
- Pulp and paper
- Textiles
- Food and beverage
- Chemicals
Packaging
- HDPE drums
- IBC totes
- Rubber-lined or stainless ISO tank containers
- Road tankers
Tell us the packaging you prefer when you request a quote.
Handling, storage and hazards
Handling and storage
- Store in carbon-steel, stainless-steel or suitable HDPE tanks; never in aluminium, zinc, galvanised or brass equipment.
- In cold climates keep 50% solution warm or dilute it; it crystallises and can block lines.
- Wear a face shield, goggles, alkali-resistant gloves and protective clothing; provide safety showers and eyewash stations.
- Keep apart from acids; dilute by adding caustic to water slowly, as mixing releases heat.
Hazards
- Causes severe skin burns and eye damage; splashes can cause permanent eye injury.
- Corrosive to aluminium, zinc and tin, releasing flammable hydrogen.
- Reacts violently with acids, releasing heat.
General hazard information, not a substitute for the safety data sheet.
SDS available on request
Questions about Liquid Caustic Soda
What concentration does liquid caustic soda come in?
Most commonly around 48–50% NaOH, and also around 32%. Many users dilute it on site to the strength their process needs.
Why does liquid caustic soda freeze in winter?
Because 50% sodium hydroxide crystallises at roughly 12 °C. Lagged and heated tanks, or a lower concentration, avoid blocked lines.
What HSN code does liquid caustic soda use?
Sodium hydroxide in aqueous solution falls under HSN 281512.
What materials can store liquid caustic soda?
Carbon steel and stainless steel at ambient temperature, plus suitable HDPE or lined tanks. Avoid aluminium, zinc, galvanised steel, brass and copper alloys.
Is an SDS available for liquid caustic soda?
Yes, an SDS is available on request.
Do you export Liquid Caustic Soda?
Yes. Goodbiz Chem exports and supplies Liquid Caustic Soda (HSN 281512). 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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Liquid Caustic Soda
HSN 281512