Heat coconut oil inside the cup. Step 1: Materials Needed. KOH makes soaps that are readily soluble in water (that is why it is used for liquid soapmaking). Considerable care is taken to remove the excess sodium hydroxide because it is very caustic. Dissolve lye in the water to make a lye solution before adding to the melted oils. 2. Soap pastes made with glycerin tend to be easier to dilute in water. Add the potassium hydroxide to the water (never the other way around! of very cold to slightly slushy goat milk with 2.6 oz. Use latex or nitrile gloves when handling. Once you make the paste for liquid soap, you dilute the paste with water or another liquid. I brought it to trace, then cooked and stirred for about an hour. It has many industrial and niche applications, most of which exploit its caustic nature and its reactivity toward acids. Allow 15 minutes for the mixture to cool before adding a few drops of your chosen essential oils. Taking it again down to the molecular level, picture a fat or oil molecule as a big capital "E." The vertical post is a glycerin molecule, and the three horizontal . Dissolve the lye crystals in water. When triglycerides in fat/oil react with aqueous NaOH or KOH, they are converted into soap and glycerol. (400 mL) of distilled water and 3.5 oz. In the case of bar soap, the lye used is sodium hydroxide (NaOH). You certainly could add more water up front, but I am of little patience and I always wonder if I'm not just wasting water when I add it up front. Use 18.25 oz of water and 6.55 oz of NaOH (lye). Answer (1 of 3): It's not what is added to soaps to make them 'thicker' it's more that water is added to make them 'thinner'. The most expensive part of this recipe is the fragrance oil and the packaging. i've been buying Tide liquid laundry soap for years and been paying an arm and a leg! This is the chemical that induces saponification of the fats and oils to create liquid soap. As a basis for home-made detergent for laundry. Always add your lye to your water, and never the other way around. The latter produces liquid soap. Even though I do a 8% lye excess instead of Failor's 10%, I follow Failor's recommendations for using borax. Dual-lye recipes are much less common for bar soap, but they do exist. Yes, it does. Combine 14.11 oz. Store the paste in covered jars. Place 750g of Distilled water into a sturdy, plastic container. Start by shredding a bar of natural soap into a pan and adding 4 cups of water to create natural liquid soap. Perfect consistency. When the KOH is dissolved into your milk, very slowly and carefully combine your oils and your milk. * 9.39 oz KOH (potassium hydroxide) (where we get ours) * (Later at dilution) 80 oz of distilled water. Just place a microwave safe cup into microwave. You'll have two phases of water for your liquid soap. The word means any liquid alkali solution that can be used to make soap, so it can be used for any KOH or NaOH solution. Cover and keep on high for the first 30-60 minutes, then turn to low. Even though making liquid soap is different than making bar soap, it's still vitally important that you use the correct amount of lye in your recipe. Potassium Hydroxide. Soaps are sodium or potassium salts of long chain fatty acids. I then left it overnight to finish gelling and when tested was neutral-no zap. It is also known as potash, lye or even KOH. While your oils are melting, mix 4.6 oz. 1.2 oz. Easy Bubble Bath 24 Hrs. Press question mark to learn the rest of the keyboard shortcuts Why is sodium hydroxide used in soap? Take coconut oil in a pot and slowly melt the oil. Potassium Hydroxide- $0.37 per oz (2 lb size) Distilled Water- $0.93 per lb (gallon size) Fragrance Oil- 1.57 per oz (1 lb size) Eight Ounce Bottles with Pump- $0.63 per bottle (50 bottle price break) Recipe Grand Total: $52.27 (that's just $1.24 per bottle of soap). Why does Koh make liquid soap? Press J to jump to the feed. Potassium hydroxide makes liquid soap, which is flowing, clear, or translucent. 3. It assumes that the reader has either taken our Cold Process 101 Soap Class or has prior experience making soap from scratch. Bronners soap, which is considered "pure" natural, uses lye. Simple right? The water needed for dilution (we'll discuss later) To find the water needed for the paste multiply the KOH amount by three. Combining a potassium hydroxide solution with various carrier oils and cosmetic butters makes liquid soap. lol As a natural detergent for dish washing - I . How Soap Is Made Soap is technically a salt product that is made by combining an alkali with fats or fatty acids. Step 3: Cover the glass with double-thick plastic wrap or something similar to keep the scent contained, and set aside for 24 hours to allow all the bubbles to rise and disburse. of KOH. Soft Soap: Soft soap is made using potassium hydroxide (KOH) rather than sodium hydroxide. Step 1: Weigh Your Ingredients. I make mine in a crock pot and once it is finished it is a hard paste that you then dilute with water to make a liquid. Simply so, how do you make liquid soap with caustic soda? As the superfat rises above about 3% in a liquid soap, the extra fat and fatty acids cannot remain mixed with the soap. This excess lye will be neutralized later. When it's liquid, continue to the next step but keep the heat on. Norman McFarling Adding water to lye can cause a volcano-like reaction. Saponification is the process of lye water and oil mixing and producing soap. This is called alkaline hydrolysis of esters. Scrape the soap paste into the boiling glycerin/water mixture, stir a bit so the paste is covered by liquid as much as possible, then cover the pan and turn off the heat, leaving the pan on the still-hot burner. Then, turn the stove on high to bring the water to a boil. Method 2Melting Castile Soap Bars into Liquid Download Article. This is the chemical that induces saponification of the fats and oils to create liquid soap. Sodium hydroxide is used to makes bar soap. Even though making liquid soap is different than making bar soap, it's still vitally important that you use the correct amount of lye in your recipe. how to turn bar soap into liquid soap: Place the three cups of water into your sauce pan. Ingredients: * 47 oz organic olive oil (technically castile soap is only made from olive oil but, feel free to try something completely different) * 32.9 distilled water. 9.5 ounces water. Soap weight is 33 ounces, plus 6.5 ounces superfats, 3 ounces essential oils, and 3.4 ounces panthenol and honeyquat, for a total of total will be 45.9 ounces. Mix it and repeat this process for couple of times. This recipe gives a richly emollient soap. Microwave on high for about 2 minutes, stirring after 1 minute or until dissolved. 600 grams Olive Oil, 105 grams Coconut Oil, 45 grams Castor Oil. This is the chemical that induces saponification of the fats and oils to create liquid soap. KOH is used for soap making, especially liquid soaps, as it needs lesser water to become liquid (the soap contains higher amount of cleaning agent than the soap made with other substances). Some carrier oils do better in liquid soap and some are best if left out or used in smaller quantities. Myristic Acid (hardness, cleansing, bubbly lather) 15-25%. Another cause is the oil and water layers getting separated, which happens due to too much oil. In the hand crafted soaping world, these dual-lye recipes are often used for specialty soaps such as cream soap, shave soap, and liquid soap. Potassium hydroxide (KOH) - KOH is the caustic substance used to turn skin-loving oils and butters into soap. The flakes are easier to work with but are still caustic, so you must wear gloves and protective eyewear. 4.8 ounces potassium hydroxide. Heat your soap back up. It's not used in soap, it's used to make soap. 5% should be enough. ($ 3.33 per 100 grams….so whatever that works out to for a pound- 450 grams) thats more than enough to make about 4 litres of the soap- which is cheap! PH was only 8! 2 Plastic or rubber spatulas (I like to use one for my oils and one for my lye water) Thermometer. There are some other differences between the two processes, which I will cover further down. Step 3: Cover the glass with double-thick plastic wrap or something similar to keep the scent contained, and set aside for 24 hours to allow all the bubbles to rise and disburse. Weigh out the water into a large, dishwasher safe jug. This works as good as Dawn ever has and has no toxic chemicals. Some soap makers use two alkalis -- sodium hydroxide (NaOH) and potassium hydroxide (KOH) -- to make some types of soap. biodiesel made with KOH, can be turned into a liquid soap with a multitude of uses from hand soap to glass cleaner. 4 ounces olive oil. If water is used for the lye liquid, the soap will have a 16% superfat. grapeseed oil. The cheaper liquid soaps contain more water. sustainable palm oil. The primary difference between liquid soap and bar soaps is that potassium hydroxide (KOH) is used in place of sodium hydroxide (NaOH) for the lye solution. Firmly press the white, hose tip into the opening on the cap until it clicks into place. ), coconut oil and the potato water! Lye/Water. Step 2: Pour the liquid base into a clean glass or jug, and then stir in both the color and fragrance oil. In a double boiler, melt together: 7.2 oz. NaOH vs. KOH Soap is made by a chemical process, called saponification, that converts oil and lye into soap and glycerin. Pour lye into liquid, not liquid into lye when making a basic solution. Most early soaps were made using potassium hydroxide obtained from wood ash and animal fats. Now for the fatty acid profile and soap qualities for coconut oil. It is also known as potash, lye or even KOH. Saponification of an unsaturated oil, such as olive oil, gives a soft soap. Combine by hand to blend the solutions, then start using the stick blender (immersion blender). So we'll end up with 543 g of water. Dilute and scent the soap according to the guidelines in the full Liquid Soap Making Overview above. Answer (1 of 2): It's not used in soap, it's used to make soap. KOH (Potassium Hydroxide-you can make it from clean ashes! Spatulas work great for getting all the batter out of your bowl. Soaps with less diluting water are thicker. coconut oil. This is the only way I have been making Liquid soap since it makes it very easy and quick. Set aside. You can also try microwaving. This reaction may or may not instantly happen, and may cause you considerable stress getting it to happen. 1. How many Liters does 3.2kg of KOH (Potassium Hydroxide) take up when mixed with oil and water to make liquid soap? I recently made a big batch using 90% Olive . Here's how -. Modern soft soaps are made using vegetable oils and other polyunsaturated triglycerides. Not only is it said to move the process along more quickly, making the process quicker and easier, it also has other advantages. Disclaimer: Making Liquid Soap is more difficult / involved than making bar soap. Who is it for? Then gently pull on the clear tubing to uncoil the clear tubing to be 3 feet long. • Students will make liquid soap from glycerin they made in a biodiesel reaction. 1 ounce lanolin. As a basis for shampooing - mix with a 100% liquid soap of another oil and/or add essential oils of your choice (ylang ylang, romarin…) and/or dilute your soap paste in herbal infusion instead of distilled water. Melt the coconut oil along with the other oils in a large crock pot. While you are melting your coconut oil, you can mix glycerine and water in a separate cup. they are pretty reasonable there. Always have proper ventilation to expell fumes. KOH). Stick Blender. Re-melt the oils if needed and begin slowly whisking the soap water into the oils, taking care not to suds it up. Having minimal Potassium Hydroxide dilution helps speed up saponification (less water to interfere with the oil/KOH love dance) so that you have paste sooner and can dilute sooner. Potassium hydroxide is an inorganic compound with the formula K OH, and is commonly called caustic potash . What the. It will bubble and steam—avoid inhaling the emissions. There are two alkali's that can be used to make soap: sodium hydroxide (caustic soda) and potassium hydroxide. When you make liquid soap you use a different type of Lye called Potassium Hydroxide (KOH). and you should be wearing goggles and gloves). I label the handles with "Soap Only" with a sharpie. This is a keeper! Melt the oils together in a large (non-aluminum) heavy bottomed pot over medium heat. What You'll Need Equipment / Tools These impurities are removed by boiling the crude soap curds in water and re-precipitating the soap with salt. Sometimes it will start and stop. The water layer is drawn off the top of the mixture and the glycerol is recovered using vacuum distillation . The mixture will be kind of chunky and want to separate, but don't worry. So here is what we'll need to make our soap paste. I have wanted to make liquid soap for quite a while but was afraid of online . Triglycerides from oil or fat react with sodium hydroxide to form glycerol and sodium salts of fatty acids, which latter are the soaps. Turn the slow cooker on to high heat and melt the coconut oil. Usually there's a slighly higher lye amount used in liquid soaps than bar soaps, in order to make sure that the fats are completely neutralized. Using a measuring cup, add the appropriate amount of water for the number of soap bars you're melting into liquid. It is mainly used to produce soft and liquid soaps. Treatrment of a soap solution with dilute hydrochloric acid produces a mixture of fatty acids. The initial water for the paste 2. It is also known as potash, lye or even KOH. All skin types except those that have an identified allergy to it. Triglycerides from oil or fat react with sodium hydroxide to form glycerol and sodium salts of fatty acids, which latter are the soaps. if you need 100g of NaOH for your recipe, you take out 5g . And next time a customer asks if you make Liquid Soap, you can say YES I DO! Finally, too much liquid within the formulation will also lead to a cloudy and milky consistency. I got some soap berries from the Bulk barn store- i'm in Canada. Equipment: The crude soap obtained from the saponification reaction contains sodium chloride, sodium hydroxide, and glycerol. Potassium hydroxide flakes intrinsically contain water and other impurities, around 10 percent, which means the lye excess in clear liquid soap recipes is not as high as it initially appears. Open the flip cap on the bottle. When you're ready, prepare the lye solution by weighing the water and potassium hydroxide into separate containers. Why does Koh make liquid soap? Voila! Loyola University of Chicago: Biodiesel Labs 54 It is present in various lotions, shampoos, hairsprays, manicure products, shaving creams, drain . 100% coconut oil soap can be used. In addition to being softer, this type of soap has a lower melting point. 3.6 oz. • Students will record actions, calculations, and observations in a laboratory notebook. Linoleic Acid (conditioning, moisturizing, lather silkiness) 1-3%. It forms a solid, opaque bar soap. For this recipe using an 8% lye excess I usually meter around 9.5-9.7 PH. (100g) of table salt in a microwaveable bowl or measuring cup. This is an intermediate or advanced soap making topic. Use like normal soap. Agitation and warmth are key to making it start. KOH (Potassium Hydroxide) and NaOH (Sodium Hydroxide) are both commercially produced lyes: KOH is potassium-based lye and NaOH is sodium-based lye. While the soap is diluting make a 20% saline solution. Adding more glycerin makes the process of liquid soap making easier and more fool-proof. Pouring lye into liquid prevents splashing. Keeping the heat on low, cover the slow cooker with its lid and check every 30 minutes, stirring with a heatproof spoon or spatula. The better solubility of the potassium salts contributes to this significantly. You will want to keep your PPE on while working directly with lye and raw soap batter. 1. However, if liquid or gel soap is what you're after, then KOH-based glycerin is much easier to use. Liquid soap gets milky and cloudy when the lye amount is incorrect. Considerable care is taken to remove the excess sodium hydroxide because it is very caustic. The reason why potassium-based soaps are 'soft' or liquid is to do with the manufacturing process and the difficulty in separating them (R-COO-K) from the glycerin/glycerol after reaction with the soap lye (The alkaline salt solution used to make the soap e.g. Add all of your chopped soap into the water. Therefore, potassium soaps are used to make liquid soap and shaving cream. For that reason, clear liquid soap recipes are formulated with a lye excess. These values are based on the use of refined solid coconut oil (either 76 or 92 degrees): Lauric Acid (hardness, cleansing, bubbly lather) 44-52%. . This is the chemical that induces saponification of the fats and oils to create liquid soap. Weigh out the KOH carefully into a small container and add it to the water, swirling it gently to dissolve the flakes. The oils in the slow cooker, the water in a heat-proof jug, and the lye (KOH) in another container. Keep distilled white vinegar on hand, this will neutralize chemical burn if lye contacts skin. Make sure you are as accurate as possible. The former produces solid bar soap. the not so good: Can be harsh in higher concentrations, causing irritation and sensitivity. 105 grams Coconut Oil, 645 grams Olive Oil. Let the soap completely dissolve (keep an eye on the pot so it doesn't overflow) Once all the soap is dissolved, remove the pot from the heat and . KOH (potassium-based lye) is what is generally used for making liquid soap, and NaOH is what is generally used for making hard/bar-type soap. It is easy to mistake the two. I left part of the soap unthickened to use in a foamer and the rest I added a very small amount of HEC to the soap, brought it to 170° and stick blended it.
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