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Small scale artisan soap makers find "melt and pour" production useful when trying out new product lines. The process differs from the cold process or hot process in utilising a pre-manufactured solid soap base which has already undergone saponification, so the soap maker does not need to handle caustic alkali, i.e. lye.
Handmade soap makers who aim for bar soap use sodium hydroxide (NaOH), commonly known as lye, rather than KOH (caustic potash) which produces soft paste, gel or liquid soaps. In order to calculate the lye amount needed to make bar soap, KOH values of SV can be converted to NaOH values by dividing KOH values by the ratio of the molecular weights ...
Pellets of soda lye (sodium hydroxide) Pellets of potash lye (potassium hydroxide)Lye is a hydroxide, either sodium hydroxide or potassium hydroxide.The word lye most accurately refers to sodium hydroxide (NaOH), [citation needed] but historically has been conflated to include other alkali materials, most notably potassium hydroxide (KOH).
Traditional Aleppo soap is made by the "hot process". First, the olive oil is brought into a large, in-ground vat along with water and lye. Underneath the vat, there is an underground fire that heats the contents to a boil. Boiling lasts three days while the oil reacts with the lye and water to become a thick liquid soap. Soap cooling
Some soap-makers leave the glycerol in the soap. Others precipitate the soap by salting it out with sodium chloride. Skeletal formula of stearin, a triglyceride that is converted by saponification with sodium hydroxide into glycerol and sodium stearate. Fat in a corpse converts into adipocere, often called "grave wax".
Traditional oven cleaners contain sodium hydroxide (lye), solvents, and other ingredients, [3] They work best when used in a slightly warm (not hot) oven. If used in a self-cleaning oven, the lye can cause permanent damage to the oven. Some oven cleaners are based on ingredients other than lye. These products must be used in a cold oven.
Otherwise, the lye itself will absorb water and actually create a mass itself, exacerbating the clog issue. [4] Liquid formulations of corrosive alkaline drain cleaners can contain sodium hypochlorite and lye (sodium hydroxide or potassium hydroxide) in concentrations up to 50 percent. Other corrosive mixtures come as two-part cleaners that are ...
Laundry detergent is manufactured in powder (washing powder) and liquid form. While powdered and liquid detergents hold roughly equal share of the worldwide laundry detergent market in terms of value, powdered detergents are sold twice as much compared to liquids in terms of volume. [1]
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