Stearic acid is extensively utilized in the production of candles. Thus detergents can effectively clean fabric even if the water is acidic. Jan 23, 2011 so, ive been making my own shaving soap more of a cream soap for a few months now and im getting differing opinions on the stearic acid i use in the product. Using my own formula, this is a cream soap without stearic acid the finished cream soap is rich creamy almost lotion like, when on your skin. Often stearic acid is used to harden soaps, when neutralized stearic acid forms an in situ soap sodium stearate which can be used as an emulsifier or cleansing agent.
Summer bee meadows recommends a 50%70% stearic acid amount. The soap during the pour is extremely smooth due to the higher water content, and the inclusion of sodium lactate. These small pastilles are ideal as an emulsifying agent in creams, lotions, deodorants, and most natural body care recipes. Stearic acid is used to harden soaps, particulary those made with vegetable oil, that otherwise tend to be very soft. Lush use a vegetablebased stearic acid, derived from palm oil. Use stearic with pillarvotive wax to make gel wax embeds. Often stearic acid is used to harden soaps, when neutralized stearic acid forms an insitu soap sodium stearate which can be used as an emulsifier or cleansing agent. Forum topic stearic acid and cold process soapmaking. That sounds like a very small amount, but a little goes a long way when it comes to.
Mar 5, 2018 shaving bar soap, in my experience, works great, better than and other soap i have tried. Stearic acid is a great addition to soap recipes if youd like to create an extra firm bar of soap. Dec 14, 2016 stearic acid is a great addition to soap recipes if youd like to create an extra firm bar of soap. It, also, has an impact on the melting point of the wax, improving the durability and consistency of the candle. Remember, citric acid isnt the chelator, but rather the citrate, meaning the dissociated salt of sodiumpotassium hydroxide and citric acid. To counteract this in a less high stearic oil formula i added 2 12 teaspoons of. In a domestic setting, soaps are surfactants usually used for washing, bathing. It occurs naturally in butters like cocoa and shea. My favorite formulas tend to fall in the high end of that range, between 10% and 14% linoleic acid. Includes both category 1 evidence for endocrine disruption in living organisms and category 2 evidence of potential to cause endocrine disruption in in vitro studies. Breaking down goat milk caprylic acid annies goat hill.
Make a gentler soap by using citric acid to lower the ph of handmade soap. Cream soaps soaps containing cold cream materials, moisturizers and emollients. Oct 29, 2018 stearic acid, also known as noctadecanoic acid c18h36o2, is a saturated, waxlike, fatty acid commonly used in the production of pharmaceutical tablets and capsules. Stearic acid is commonly used to emulsify lotions made from scratch. Soaps, detergents and disinfectants technology handbook. Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. Questions about using stearic acid for cp ive just recently wanted to try my hand at making some shaving soap and ive read that stearic acid. Today many castile soaps are made with other vegetable oils. It can be sourced from animal or plant sources, or synthesized, so if the origins of your ingredients are important to you, be sure to ask your supplier.
Stearatevanishing creams were known for their smooth, dry feel on the skin and their pearly sheen. Stearic acid is derived from whole oils and is void of glycerin. I have a liquid castile soap lavender essential oil inside that i love, but its far too watery to be used well in a pump dispenser as a hand soap. Questions about using stearic acid for cp ive just recently wanted to try my hand at making some shaving soap and ive read that stearic acid is one of the main ingredients in a lot of shaving soaps. Ive promised you a whipped soap recipe that doesnt use stearic acid to stabilize it, and here it is. Ive read that it makes the consistency of the cream soap fluffy and whipable. I read up all i could online and it seemed like the stearic acid should have been included in the base oils, but i noticed even after i remove the soap from the molds, i can still see the little white. A soap molecule consists of a long hydrocarbon chain composed of carbons and hydrogens with a carboxylic acid group on one end.
Can be used in candle manufacturing to raise the melt point and improve the hardness of candle wax. Chemically they are oilinwater emulsions consisting of stearic acid, an alkali, a polyol and water. The acid media change soaps into carboxylic acid and the action of soap becomes ineffective. I think it should have been mentioned if it was a 101 type of book. It is used to harden the wax and strengthen the candle. Mar 19, 2015 the average percentage of linoleic acid in the favorite soap recipes of soapmakers polled rounds in at 10%. Stearic acid is used to bind, stabilize and thicken creams and lotions and is the premier choice for most body care product manufacturers. Actually, soap in acidic water just means reactions with the hydrogen ions in acid and whatever other element in the acids is not a matter to be concerned about. Stearic acid can be used in the manufacture of candles, cosmetics, shaving soaps, lubricants, and pharmaceuticals. Choosing the best shaving cream shaving cream manufacture if youre presently using a shaving cream or gel that comes in a pressurised can, smells like deodorant and generally fits the description of goo, then your first time using a high quality shaving cream is going to be a real pleasure and something that will actually turn shaving into an enjoyable. Castile soap a mild soap originally made in spain with pure olive oil. Recently decided to try out some stearic acid in a cold process soap recipe and the type of stearic acid i got was the little white granules. I followed your advice and my bar of soap turned out all flaky and waaay too basic i dont know why it was so basic, though, as im pretty sure i used the correct amount of lye.
In addition, stearic acid is used in the production of soap. It also has an impact on the melting point of the wax, improving the durability and consistency of the candle. The alkali reacts with some of the stearic acid the best was triple pressed t. Commonly used to emulsify lotions made from scratch. Whipped cream soap how to make soap beauty product making. Weak acid fatty acids and strong base make a mildly basic salt soap. Anne will get your started safely and sensibly, and her books are very. Probably save them for making handmade lotion and cream, meltandpour soap.
In that i observed that when i add little amount of citric acid solution in my formulation the stearate soap is totally separate i dont know why it could happen if any body know kindly share with me. A surfactant is a compound that helps reduce waters surface tension, allowing it to mix with oils and dirt on the surface of your skin. Castile is a marvelous cleanser, producing a rich lather. So, ive been making my own shaving soap more of a creamsoap for a few months now and im getting differing opinions on the stearic acid i use in the product. It can also be used in candle manufacturing to raise the melt point and improve the hardness of candle wax along with countless other applications. I added some cold water to the mix to try and slow down the saponification process and. Our stearic acid is from vegetable origins palm and is manufactured and designed to blend well with your cosmetic recipes. Upon introducing the lye to the oils, im getting instant soap. See more ideas about soap recipes, shaving and soap. As a surfactant, stearic acid is a powerful cleanser source. Cream soap recipes all seem to have large amounts of stearic acid. It is used to add hardness to sodium based soaps and to add thickness to liquid soaps. Its a vegetable derived waxy substance that can be used at a 0. A soap is a salt of a compound known as a fatty acid.
Our stearic acid is triple pressed palm stearic acid. Citric acid is commonly extracted from citrus fruits and used to create the fizzing in bath bombs and the tart white powdery coating on sour gummy candies. Jan 25, 2016 my non stearic acid cream soap kept separating into a layer of gel on the bottom and cream soap cream gel on top. Stearic acid should be used to thicken lotions and creams at about 25%.
Stearic acid is an emulsifier by itself, but can also be used with triethanolamine. Stearic acid is the substance that helps your bar of soap retain its shape just as it does in products such as candles, oil pastels and hard candies. The main emulsifier in a cream soap would probably be the soap itself. Since detergents are the salts of strong acids they do not decompose in acidic medium. I used stearic acid and potassium hydroxide and made stearate soap based cream. It works harmoniously to ensure that the skin is nourished from deep within. Stearic acid is suspected of causing endocrinedisrupting effects, according to european commission annex.
Stearic acid is produced from fats and oils by the saponification of the. It can also be used as a stabiliser in the manufacture of creams and lotions and it also adds a sheen to the product. So i gave it my first shot today at making shaving soap. Stearic acid bescented soap and candle making supplies. Whipped cream soap how to make soap beauty product. The cream was made by mixing the oil phase coconut oil, stearic acid, lanolin and cetyl alcohol at 70c and the water phase glycerin, aquadest and triethanolamine at 70c, while stirring. So for example, palm oil 44% palmitic acid and 5% stearic acid on average. Beeswax in soap in the quantities that you need with stearic acid would not make a very good soap. In soap making it is used to harden soaps, especially soaps made with vegetable oil.
Stearic acid is also used in the production of soap. It is made by extraction from animal or vegetable fats and oils. What fatty acid profiles in soapmaking are the most popular. This homemade organic healing shea cream uses pure raw shea butter and your favorite essential oils for a. It saponifies quickly and can cause cold processed soap to sieze. Cream soap update non stearic acid formula youtube. We use citric acid to create a citrate in just about every recipe that we make. Commercial stearic acid is a mixture of approximately equal amounts of stearic and palmitic acids and small amounts of oleic acid. In pharmaceutical dosage forms, stearic acid is used as an emulsifying agent, solubilizing agent, tablet and. Stearic acid is an isolated fatty acid we use as a thickener and hardener in lotions, salves, body butters, and more.
Most recipes clocked in at 7% to 14% linoleic acid. The suggested usage rate in bar soap is approximately 12% of the total oil weight used. The effect of stearic acid and triethanolamine tea on. If the temperature of the soap is allowed to drop when using stearic acid it can cause false trace. Jan 17, 2016 using my own formula, this is a cream soap without stearic acid the finished cream soap is rich creamy almost lotion like, when on your skin feels like a lotionconditioner, giving a rich creamy. Useful for shave soap, cream soap, and other specialty soaps.
Stearic acid palm free is widely used in candle making to add hardness and opacity to wax. Jul 21, 2014 so i gave it my first shot today at making shaving soap. It is employed in the manufacture of candles, cosmetics, shaving soaps, lubricants, and. Saponification of stearic acid soap making youtube. Stearic acid is a white, waxy, natural acid found in animal and vegetable fats. Koh potassium hydroxide cold processed liquid soap cpls recipe click show more or arrow under video duration. Stearic acid also makes an effective additive to improve the stiffness in stick products, soy candles, and the like.
Is there a natural product i could add to the liquid soap to thicken it a bit, yet not affect the soaps cleaning ability. This one uses raw cocoa butter, imparting a delicious chocolatey. Typically beeswax is used to harden a bar of soap, in small amounts. Stearic acid emulsifying thickener with softening effect. I use stearic acid in flake form from an online soap supplier. To counteract this in a less high stearic oil formula i. It is an organic acid high molecular weight and appear as white wax it has no acid properties like. Stearic acid is useful as an ingredient in making candles, soaps, plastics, oil pastel, cosmetics and for softening rubber. Advertisement but shape is only one of the properties that stearic acid adds to cleansers such as bar soaps and body washes. My nonstearic acid cream soap kept separating into a layer of gel on the bottom and cream soapcream gel on top. When mixed, the two compounds react and become a paste called triethanolamine stearate that helps to create a loose emulsion which is easily absorbed by the skin. Weak acidfatty acids and strong base make a mildly basic saltsoap. Cream soaps are particularly good for dry and delicate skin.
Soap making books and guides green living australia. Stearic acid is also added to soap to make it harder, and allows it to last longer. This shaving soap recipe can be poured into a cylindrical mold and cut into bars, poured into individual cavity molds, or poured directly in tins. Tccs stearic acid, also called octadecanoic acid, is one of the most common longchain fatty acids. So for the purposes of this article, well just call the issue stearic spots. The average percentage of linoleic acid in the favorite soap recipes of soapmakers polled rounds in at 10%. Natural soap making ingredients lovely greens soap making. Cream soap experiment 1 without stearic acid youtube. The best shaving creams for men are traditional shaving creams. It is a waxy solid and its chemical formula is c 17 h 35 co 2 h. It is found in combined form in natural animal and vegetable fats. But shape is only one of the properties that stearic acid adds to cleansers such as bar soaps and body washes. Without it you would just be left with a squishy opaque soap that would not cream no matter how hard you whip it. Add approximately 1 tablespoon stearic acid per pound of soap.