How do you calculate sodium hydroxide for soap?

Divide the amount of lye by 0.3 and then subtract the amount of lye from the result.

(Amount of Fat) × (Saponification Value of the Fat) = (Amount of Lye)
(Amount of Lye) ÷ 0.3 = (Total Weight of Lye Water Solution)
(Total Weight of Lye Water Solution) − (Amount of Lye) = (Amount of Water)

What is the formula for calculating soap?

The volume of any cylinder is calculated using Pi X radius X radius X height. The calculation gives you the volume of the container in cubic inches, which you then multiply by 0.4 to get the total amount of oils needed. 3.14 X 1.5 X 1.5 X 6 X . 40 = 16.96 ounces of oils.

What is the ratio of water to lye for soap making?

The lye to water ratio of the lye solution is roughly 1 part lye to 2.3 parts water. This is equivalent to roughly 30% lye and 70% water.

How is TFM calculated in handmade soap?

Dissolve the soap in alcohol and all the fatty matter will get dissolved. Then you can remove the alcohol and find the weight percentage of fatty matter. TFM means total fat matter in a soap.

How do you calculate soap percentage?

Divide each individual weight by 44 to get the percentage of each oil in the recipe. Let’s say you want to make a 7-pound (or 112-ounce) batch of soap. (Remember, that’s just the measurement of your oils.

What is the chemical formula of lye?

NaOH
Sodium hydroxide/Formula

What does lye concentration mean?

Lye concentration is the grams (or ounces) of alkali contained in 100 grams (or ounces) of lye solution. Some examples — Lye concentration of 33% means there are 33 grams of alkali in 100 grams of lye solution. Water makes up the rest of the 100 grams. In other words, the water weighs 100 – 33 = 67 grams.

What is TFM in Pears soap?

total fatty matter
The hot liquid soap fresh from the vessel had a total fatty matter (TFM) of 45% compared with the TFMs of 70–80% usual in soaps made by the conventional method.