Sodium Stearate - Production

Production

Sodium stearate is produced as a major component of soap upon saponification of oils and fats. The percentage of the sodium stearate depends on the ingredient fats. Tallow is especially high in stearic acid content (as the triglyceride), whereas most fats only contain a few percent. The idealized equation for the formation of sodium stearate from stearin (the triglyceride of stearic acid) follows:

(C18H35O2)3C3H5 + 3 NaOH → C3H5(OH)3 + 3 C17H35CO2Na

Purified sodium stearate can be made by neutralizing stearic acid with sodium hydroxide.

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