Stearic Acid is a waxy, colorless or white solid that exudes a mild odor. It is soluble in oil but only slightly dissolves in water , thus it floats. Stearic Acid is a long-chain fatty acid that, due to its 18-carbon chain, is also referred to as Octadecanoic Acid.
How do you dissolve stearic acid?
You can try to dissolve it in hot purified water (but it’ll be dissolved according to its conc. (limited solubility)). Use of a non-ionic surfactant (mix the stearic acid with neat surfactant such as Nonidet P42) and the stearic acid can be ‘solubilized’ in water.
Is stearic acid made from palm oil?
In the United States, almost all stearic acid is made from tallow and coconut oil, although lesser amounts are made from palm oil .
Is stearic acid a fat or oil?
The main dietary source of stearic acid is animal fat. The levels of stearic acid are usually low in plant fat, with the exception of coconut oil, cocoa butter, and palm kernel oil. Stearic acid is considered a healthy saturated fat and does not appear to raise your risk of heart disease.
What is the best solvent for dissolving stearic acid?
ABSTRACT: The solubility of stearic acid in ethanol , methanol, ethyl acetate, and acetone has been measured gravimetrically at various temperatures ranging from 301 to 313 K at atmospheric condition. The solubility of stearic acid in ethyl acetate was found to be the highest, followed by ethanol, acetone and methanol.
What does stearic acid dissolve in?
Stearic acid is soluble in organic solvents such as ethanol, DMSO, and dimethyl formamide . The solubility of stearic acid in these solvents is approximately 20, 10, and 30 mg/ml, respectively.
What oils are high in stearic acid?
The high–stearic acid fat was composed of 9.0 % palm oil , 5.5% safflower oil, 5.0% olive oil, 33.5% cocoa butter, 18.0% high– oleic acid sunflower oil, and 29.0% glycerol tristearate.
What can you use instead of stearic acid?
Organic beeswax offers an all-natural substitute to stearic acid or e-wax as an emulsifier, although it is not as effective of an emulsifier, which may lead to a watery consistency in cosmetics and candles. Lecithin is another emulsifier that can be a substitute for stearic acid.
What does stearic acid smell like?
| Names | Appearance White solid | Odor Pungent, oily | Density 0.9408 g/cm 3 (20 °C) 0.847 g/cm 3 (70 °C) | Melting point 69.3 °C (156.7 °F; 342.4 K) |
|---|
Can stearic acid be vegan?
9. Stearic Acid. ... A vegan alternative (also called stearic acid) can be derived from plant fats . As well as being cruelty-free, the vegan version is also less likely to irritate the skin.
What does stearic acid do to your body?
Stearic acid (C18:0) is a long chain dietary saturated fatty acid that has been shown to reduce metastatic tumor burden . Based on preliminary observations and the growing evidence that visceral fat is related to metastasis and decreased survival, we hypothesized that dietary stearic acid may reduce visceral fat.
Is stearic acid good for oily skin?
Cleansers that contain sebum-absorbing and sebum-controlling ingredients, such as myristic acid, stearic acid, lauric acid, and palmitic acid, are good for oily skin . ... This is because for oily skin, oils can produce sebum and clog your pores.
Is stearic acid a natural ingredient?
What Is Stearic acid? A fatty acid that occurs naturally in animal and plant fats (typically coconut or palm oil), stearic acid is white, solid, often crystalline, and with a mild odor. It’s a major component of cocoa and shea butter.
How long does stearic acid last?
The end result is a white, waxy, natural fatty acid. It is fairly insoluble in water but can become somewhat soluble in alcohol. Stores well under most conditions, with an indefinite shelf life .
Is stearic acid hazardous?
May be harmful by inhalation or skin absorption. May cause eye, skin, or respiratory system irritation. Toxic if swallowed . Very toxic to aquatic life.
Does stearic acid dissolve in methanol?
The solubility of stearic acid in ethanol, methanol, ethyl acetate, and acetone has been measured gravimetrically at various temperatures ranging from 301 to 313 K at atmospheric condition. The solubility of stearic acid in ethyl acetate was found to be the highest, followed by ethanol, acetone and methanol.
