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Lye is one of those "common names" that, particularly when combined with adjectives, might mean a couple of different compounds.
The canonical lye is sodium hydroxide. However, potassium hydroxide has very similar chemical properties, and I've seen terms like "wood lye" that indicate it's actually the potassium compound instead.
"Caustic lye" is a new one on me; both compounds have common names that include the word caustic (caustic soda for sodium hydroxide, caustic potash for potassium hydroxide), so it might be either one.
If it's in a recipe for soap or something, it doesn't really matter all that much; as stated earlier, they have very similar properties and either will work.
Wiki User
∙ 13y ago
Wiki User
∙ 10y agoLye may be either sodium hydroxide or potassium hydroxide.
Wiki User
∙ 11y agoIn modern days, lye is Sodium Hydroxide NaOH.
However, many years ago, most would have understood lye to be potassium hydroxide KOH. There is more information at the related link.
Wiki User
∙ 14y agoLye was made from potash traditionally, the equliviant is Potassium Hydroxide(KOH) but Lye in more modern times may also refer to Sodium Hydroxide(NaOH).
Wiki User
∙ 6y agoBy tradition (not so correc) sodium hydroxide is called lye.
Wiki User
∙ 14y agosodium hydroxide
Wiki User
∙ 14y agoNaOH
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Common name for sodium hydroxide?
Sodium hydroxide is the scientific name for caustic soda.
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Common name for sodium hydroxide?
Sodium hydroxide is the scientific name for caustic soda.
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Yes, It is the chemical formula for lye. And the chemical name for lye is Sodium Hydroxide.
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Soda lye, known as sodium hydroxide Potash lye, a less common name for potassium hydroxide Chamber lye, urine
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Lye is a common name for sodium hydroxide. Caustic soda is another name for sodium hydroxide.
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