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Caustic Soda (Sodium Hydroxide) 99%

(3 customer reviews)
Size Clear
1kg $17.00
2kg $29.00
5kg $64.00
SKU LYE Categories ,

Product Description

Sodium hydroxide, also known as lye or caustic soda (pearl).

Sodium hydroxide is used in many industries, mostly as a strong chemical base in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner.

Sodium hydroxide is frequently used as an industrial cleaning agent where it is often called “caustic”. It is added to water, heated, and then used to clean process equipment, storage tanks, etc. It can dissolve grease, oils, fats and protein based deposits. It is also used for cleaning waste discharge pipes under sinks and drains in domestic properties.

It is also the chemical that induces saponification with fats and oils to create soap.

This is a hazardous material and should be handled with care. Always use safety precautions when using sodium hydroxide!



All orders containing lye will have a $8.00 dangerous goods surcharge added to the regular freight cost. Free Shipping does not apply when purchasing dangerous goods (you will be charged the DG fee only with the normal freight charge free)

We only charge one $8.00 fee when you order up to 5kg of lye, so in order to save costs it might be a good idea to buy in larger quantities to save paying multiple surcharges over time.

3 reviews for Caustic Soda (Sodium Hydroxide) 99%

  1. Amanda Pittar (verified owner)

    I have always used Zens sodium hydroxide. It is always the same product. Never varies, always consistent. I tried another supposedly 99% one and it had little bits floating in it – and a tried and true recipe just did not come out the same. Never again. I just stick to this one. I don’t mind the shipping either to get a quality product.

  2. Laura (verified owner)

    Really happy with the quality! Came super dry and small beads. Way better than lye i got from mitre10. dissolves quickly and easily in water which is super nice.

  3. Dianne Firth (verified owner)

    This is the only Lye I will use. I have tried other bulk Lye and it isn’t the same. Awesome quality, dissolves with no Lye lint, the 5kg bucket seals well and is convenient.

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