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Industrial Coatings for Sodium Hydroxide – Ecodur 201

Sodium Hydroxide (NaOH), otherwise known as caustic soda or lye is a white solid available in pellets, flakes, granules, and as prepared solutions at different concentrations.
The history
Sodium hydroxide was first used as early as the Ancient Egyptian and Babylonian times. According to the Royal Society of Chemistry, the inhabitants “discovered, presumably accidentally when trying to wash away ash, that water that had run through vegetable ashes took on a specific property.” It transformed oil or fat into something that would later become known as soap. It was able to get things clean and transformed greasy substances that were insoluble into something soluble.
Sodium hydroxide has been produced in a variety of ways. It was first produced by causticizing, then by the solvay process, and now by the chloralkali process, which is the current method of production.
Sodium hydroxide is used in many products and activities including:
Laboratory experimentation and testing
Sodium hydroxide is inexpensive and easily available so it is the perfect ingredient for chemical reactions. It can be used to neutralize acids, refine petrol, extract alumina from its ore and is even used in the production of illegal methamphetamines.
Lab Beakers
Soaps and detergent manufacturing
Sodium hydroxide is used in the manufacturing of soaps and detergents. In fact, according to Livestrong, lye soap has been around for thousands of years. It says, “archaeologists discovered ancient Mesopotamian writings on a papyrus scroll that revealed instructions on how to use alkaline salts and animal fats or vegetable oils to make lye soap.”
Timber, wood and pulp industry manufacturing
Sodium hydroxide is used with sodium sulfide to isolate lignin from cellulose. It is also used as a bleaching agent to bleach brown pulp.
Fruit and vegetable peeling
Fruits and vegetables can be peeled with the aid of sodium hydroxide. When the vegetables are submerged in a hot alkali solution the skins soften from their underlying tissues. They are then moved under high-pressure jets of water which wash away the skins and sodium hydroxide.
Fruit Peeling
Pretzel baking
If you’ve ever tried to make a pretzel at home and wondered why it wasn’t as soft as freshly baked store pretzels, it could be because many pretzels are dipped in a sodium hydroxide and water mix prior to baking to give them a soft texture. (Note. Do not attempt to use this solution at home. Lye is powerful, and if not used properly it can be dangerous.)
Sodium hydroxide and Ecodur
We’ve worked with many sodium hydroxide coating applications because the chemical has a high compatibility rating with Ecodur. Ecodur coating has no VOCs or toxins and it has a NSF-61 rating and it’s composed with renewable castor oil.
For more information contact us at or 1 (888) 388-2935 (Toll Free US/Canada).