Is stearic acid soluble in alcohol?
Stearic acid is a saturated fatty acid that can deposit on the surface in special conditions. This acid is insoluble in water and soluble in ethanol.
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.
Why is stearic acid not soluble in water?
Stearic acid has the following structure: While the carboxylic group makes stearic acid soluble in water due to the potential hydrogen bonding and its polar character, the long hydrocarbon chain is hydrophobic and repels the water molecules to the extent that the compound is insoluble in water.
Why does stearic acid molecules stay on the surface of water?
If stearic acid molecules are placed on a water surface, the polar head of the molecule hydrogen bonds to the water molecules on the surface. As a result, the molecules line up on the surface of the water with polar heads on the surface, and nonpolar tails sticking up away from the surface (see Figure 2 below).
Why does stearic acid not dissolve in water?
Does ethanol dissolve stearic acid?
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.
Is stearic acid soluble in sodium hydroxide?
Sodium stearate is the sodium salt of stearic acid….Sodium stearate.
| Names | |
|---|---|
| Odor | slight, tallow-like odor |
| Density | 1.02 g/cm3 |
| Melting point | 245 to 255 °C (473 to 491 °F; 518 to 528 K) |
| Solubility in water | soluble |
Does stearic acid soluble in water?
Stearic acid (C17H35 CO2H) is a classical monolayer forming molecule with (-CO2H) which is easily soluble in water and a long alkyl chain (C17H35-) which is hydrophobic or oleophilic.
What does stearic acid dissolve in?
Stearic acid is slightly soluble in water, but it easily dissolves in oil. Lush products use a vegetable-based stearic acid, which is derived from palm oil.
What is the melting point of stearic acid?
Stearic acid melts at 69.3°C (156.7°F) (that’s a higher melting point than beeswax!), making it a very effective hardening ingredient that raises the melting points of our products without adding any waxiness. It can be sourced from animal or plant sources, or synthesized,…
What is stearate acid?
Stearate is just the anion form of stearic acid, which you’ve most likely heard of before. Stearic acid is a long-chain saturated fat that is abundant in beef, cocoa butter, coconut oil, and other natural foods. As I mentioned in my red meat article, it’s also the only long-chain saturated fat…