Skip to product information
1 of 3

Custom Chemical Supplies

Caustic Soda Sodium Hydroxide Lye 99% Powder

Caustic Soda Sodium Hydroxide Lye 99% Powder

Regular price £8.95
Regular price Sale price £8.95
Sale Sold out
Taxes included. Shipping calculated at checkout.
size
Quantity

Caustic Soda 99% (Sodium Hydroxide) 

Powerful Alkali for Industrial, Cleaning, and Craft Applications

Our 99% pure Caustic Soda (Sodium Hydroxide, NaOH) is a high-strength, industrial-grade alkali supplied in containers. Also known as lye, this white crystalline powder is highly soluble in water and generates significant heat when mixed, making it ideal for heavy-duty chemical processing, cleaning, and manufacturing.

Widely used across domestic, laboratory, and industrial sectors in the UK and Northern Ireland, this caustic soda is a trusted solution for soap-making, degreasing, pH control, and more.

Key Features

  • 99% Pure NaOH Powder: High-strength caustic soda suitable for demanding chemical, industrial, or cleaning applications.
  • Bulk Supply: Cost-effective option for businesses, commercial cleaning teams, and regular users.
  • Versatile Applications: Suitable for cooking preparation, oven degreasing, soap-making, drain cleaning, chemical neutralisation, paper production, and pool pH management.
  • Reactive Compound: Generates heat when added to water — add slowly to cold water only, never the reverse.
  • Supplied for UK & Northern Ireland Clients: Delivered from our UK facility with shipping available across the UK and Northern Ireland.

Common Uses of Caustic Soda

Application Use
Cooking Prep In regulated food prep applications (e.g., pretzels — subject to guidance)
Oven & Surface Degreasing Removes burnt-on fats, carbon, and residues
Soap-Making Essential saponification ingredient for cold and hot process soaps
Drain Unblocking Powerful drain opener that dissolves fats and organics
pH Adjustment Used to neutralise acids in chemical processes and water systems
Paper & Pulp Production Assists in the breaking down of lignin
Pool Maintenance Regulates pH levels in swimming pools and spas

This caustic soda sodium hydroxide powder offers high reliability in commercial and industrial operations where strong alkaline performance is needed.

Safety & Handling Information

WARNING: THIS PRODUCT IS HIGHLY CORROSIVE

  • Always wear gloves, eye protection, and appropriate PPE.
  • Never add water to caustic soda — always add caustic soda to cold water slowly to avoid dangerous exothermic reactions.
  • Use in well-ventilated areas.
  • Not for consumption or cosmetic use. External use only.

Storage

Keep sealed in original packaging. Store in a cool, dry location away from acids, moisture, and heat sources. Keep out of reach of children and unauthorised users.

Buy Caustic Soda — UK & Northern Ireland Bulk Delivery

Purchase caustic soda online today with nationwide UK and Northern Ireland delivery. Suitable for trade, manufacturing, maintenance teams, and chemical use environments.

Order now for industrial-grade Sodium Hydroxide at competitive bulk pricing.

View full details