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Lye - Sodium Hydroxide

Lye - Sodium Hydroxide

Regular price $5.85 CAD
Regular price Sale price $5.85 CAD
Sale Sold out
Shipping calculated at checkout.
$35 Dangerous Chemical Shipping Surcharge will be added for "25kg / 55lb" size.

Also know as Lye or Caustic Soda, Sodium Hydroxide is a necessary soap making ingredient used in the production of natural cold process and hot process bar soaps. Also widely used as a pH buffer in cosmetics.

Since Sodium Hydroxide can be irritating and caustic to the skin, proper care and caution should be taken when using sodium hydroxide. ie: use in a properly ventilated area wearing gloves, eye protection, and appropriate clothing.

There is a $35.00 Dangerous Goods Charge applied to all orders for shipping of the 55lb bag size.  Smaller sizes are exempt as they are considered limited quantities by Transportation of Dangerous Goods Regulations. 

Usage Guidelines

Voyageur Soap & Candle is the largest supplier for Canadian soap making supplies and carries wholesale Sodium Hydroxide in bulk sizes and small sizes for use in natural Soap making. Sodium Hydroxide is also commonly referred to as Lye or Caustic Soda.

Technical Information

Technical Information: 

  • INCI: Sodium Hydroxide
  • CAS #: 1310-73-2
  • Purity: 99.23%
  • pH: 12
  • Specific Gravity: 2.13 @ 20°C

Documentation & Resources

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Customer Reviews

Based on 5 reviews
Joyce Chen
Good Lye!

I am happy with this lye. The soaps came out beautifully. I could unmold them in 3 days and take a few more days to cut them for larger pieces. The lye is as good as those I purchased from local store and yet more economical.

My favorite lye

I've tried lye from many different places and I like this one the best. I like the 1kg jars because they're easy to pour from.


The lye – sodium hydroxide is excellent for soap making.




Pours nicely, almost zero dust!