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Calculating and Measuring Water (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).
How much lye do you put in soap?
If using more liquid oils in your soap, though, superfatting over 10% is probably going to result in a soft bar of soap that isn’t as cleansing. The default in the Soapcalc lye calculator is 5%. I think 5-8% is a good range to play with, depending on what type of soap you are making.
How do you calculate lye to water ratio?
The lye to water ratio of the lye solution is roughly 1 part lye to 2.3 parts water.
How is lye concentration calculated?
Lye concentration is the grams (or ounces) of alkali contained in 100 grams (or ounces) of lye solution. 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 happens if you put too much lye in soap?
There are two common issues people run into when making soap: not enough lye or too much lye used. Too much lye will result in a bar whose pH is too high and can cause skin irritation and burning. Not enough lye can result in oils going rancid, causing discoloration and bad odors.
What is the chemical formula of lye?
What is the lye to fat ratio?
Multiply 16 (fat wt) by 0.132 = 2.1 oz. of lye. Why different oils have their own SAP values: It all has to do with the length of the fatty acid chain. Briefly, it takes the same amount of lye to saponify a short fatty acid molecule as it does to saponify a long fatty acid molecule.
How much lye should I use?
So the water range is from 1:1 water:lye to 3:1 water:lye. For beginners it’s usually prudent to stay in the middle of the range and use water at 1.5 or 2 times the weight of lye. More water does not make the process safer either for soapmaker or soap so it’s not worth adding extra water for that reason.
How many bars of soap will 1kg of melt and pour make?
This 8 piece basic soap making kit 1kg contains enough ingredients to make 1 kg of soap which produces approximately 10 bars.
How do you keep lye from heavy soap?
If your soap turns out lye-heavy (with a pH at 10 or above), you can add oils or fats in small amounts until the pH reaches a safe and mild number 8. If your soap is soft and oily, melting it back down and adding small amounts of lye solution can save it.
Why is my homemade soap not foaming?
Why doesn’t my handmade soap lather? – Quora. Handmade soaps can have different lather forms depending on the carrier oils you using in it. Simple tip is to reduce the super-fat oils( superfat oil in soap-making refers to free oil in the soap after the saponification process), too many oils will cut down the lather.
What happens if you don’t put enough lye in soap?
If the soap does not contain enough lye, the oils will not saponify. Another reason for soft soap is there was not enough hard oils or butters (such as coconut oil, palm oil or cocoa butter). Soap made with only soft oils can take an extremely long time to unmold (such as castile soap).
How do you know if lye is out of soap?
The first test – the “zap test” – is nice and simple. It involves tapping the soap lightly on your tongue. It sounds weird, but it totally works. If it “zaps” you, it is likely lye heavy.
What is the correct formula for phosphate?
How is NaOH 10 prepared?
It is generally prepared by electrolysis of sodium chloride in Castner-kellner cell. A brine solution is electrolyzed using mercury cathode and carbon anode. Sodium metal, discharged at the cathode, combine with mercury to form sodium amalgam. The amalgam is treated with water to give sodium hydroxide and hydrogen gas.
What is the pH of lye?
When the pH of a substance is above 7, it is a basic substance. When the pH of a substance is below 7, it is an acid substance. The further the pH lies above or below 7, the more basic or acid a solution is.Acids and bases. pH product 14 sodium hydroxide 13 lye 12.4 lyme 11 ammonia.
Which soap calculator is best?
Bramble Berry’s calculator is a great simple soap calculator and it has been revised to include liquid soap. With this tool, you can only superfat up to 10 percent.
How is saponification value calculated?
Saponification Value = (A – B) x N x 56.1 W This method is used to determine the total acid content, both free and combined, of tall oil. (Acid number only measures the free acid). The combined acids are primarily esters formed by reaction with the neutral components present in the original tall oil.
What is the ratio of lye solution to oil in soap making?
(This is what you get when using a water:lye ratio of 3:1 or 4:1 plus soft oils such as olive that contribute to a slow moving recipe.) For recipes high in olive oil and other soft oils (50%+) I will use a water amount equal to 1.5 times my lye.
