How to distinguish between water solubility and oil solubility, I want to figure out water solubilit

Water solubility: soluble in water, oil solubility: soluble in oil.

Pour a little lotion and beauty serum (if it is transparent, add some pigment to try) into the water, and it will not be layered, but it is water-soluble.

The distinction between water solubility and oil solubility mainly depends on the ingredients:

1. Water-soluble can be dissolved in water, and water-soluble moisturizing ingredients include glycerol, polyol, hyaluronic acid, amino acids, peptides, NMF, hydrolyzed collagen, and vitamin B5.

2. Oil-soluble is soluble in oil, and oil-soluble moisturizing ingredients include jojoba oil, vegetable oil, squaracon, ceramide, fatty acids, cholesterol, triglycerides, and diglycerides.

Difference Between Fat Soluble and Water Soluble:

The nature is different. Fat solubility: Fat solubility refers to the ability of a substance to be dissolved in non-polar solvents (such as benzene, ether, carbon tetrachloride, petroleum ether, etc.). Fat-soluble substances usually have long carbon chains in their molecules.

Water solubility: In a narrow sense, it refers to the solubility properties of substances in water, and in a broad sense, it refers to the solubility properties of substances in polar solvents. The molecules of water-soluble substances usually contain extremely limb groups such as -OH, -NHR, -COOH, etc., or not too long carbon chains.

In general, polar molecules are easily soluble in polar solvents (e.g., water); Non-polar molecules are easily soluble in non-polar solvents (fat-soluble), which is often referred to as similar dissolution.

The molecules of water-soluble substances usually contain polar groups such as -oh, -so h, -nh, -nhr, -cooh, etc., or not too long carbon chains. Water is the cheapest solvent, wide and non-polluting. Water-soluble polymers are soluble in water because hydrogen bonds are formed between the water molecules and the polar side groups of the polymer.

The solubility of water-soluble polymers has an important condition, that is, the solubility parameters of solute and solvent must be similar, but this is only a necessary condition for dissolution but not a sufficient condition, and the influence of the crystalline structure of the polymer needs to be considered.

Fat solubility refers to the ability of a substance to be dissolved in non-polar solvents (such as benzene, ether, carbon tetrachloride, petroleum ether, etc.). Fat-soluble substances usually have long carbon chains in their molecules.

Melting point ( ) is not available.

Relative vapor density (air = 1): no data.

**Upper Limit %(v v):

**Lower Limit %(v v):

Contraindications: strong oxidants.

Main uses: A variety of organic raw materials can be separated, such as gasoline, benzene, kerosene, asphalt, etc.