How does detergent work to clean oil stains?

Dish soap can enhance the dispersion and suspension of dirt. Its surfactant has the ability to emulsify, which can emulsify the oil into small oil droplets and disperse them in water to prevent the oil beads from re-accumulating. Surfactants can also charge the surface of solid dirt, using the repulsion between the same charges to disperse the solid dirt in the water and prevent the redeposition of the dirt.

Dish soap can break down grease particles into water and other substances that are easily soluble in water, which means that it is somewhat acid-base neutralized.

<> dish soap contains surfactants and emulsifiers that enhance the dispersion and suspension of dirt. Its surfactant is an organic compound with two parts of the molecular structure, hydrophilic and lipophilic. Many lipophilic groups are inserted into the oil to form hydrophilic groups on the surface of the oil, and the hydrophilic groups can be dissolved in water, and then peeled off when the oil is dissolved together; It has the ability to emulsify, and can emulsify the oil into small oil droplets and disperse them for suspension in water, preventing oil beads from re-accumulating.

Surfactants can also charge the surface of solid dirt, using the repulsion between the same charges to disperse the solid dirt in the water and prevent the redeposition of the dirt.

Dacheng Yuhao's oily cleaner does not smell the smell of detergent, has a refreshing lemon smell, is not pungent, and is very clean after use.

Detergent to remove oil stains is a kind of emulsification, sodium hydroxide and other strong alkali degreasing principle is very different, is the use of high temperature oil in a strong alkali solution saponification reaction to produce carboxylate sodium salt and glycerol.

There are two main categories of detergents: one is fertilizer (fragrant) soap; The second is synthetic detergents. Among the synthetic detergents, laundry detergent accounts for about 2 3, liquid detergents account for about 1 3, and solid synthetic detergents are relatively few.

Detergents contain surfactants such as sodium dodecyl sulfonate, which are the reason why they become emulsifiers. After dissolving in water, the lipophilic group extends into the oil molecules, and the hydrophilic group extends into the water molecules to form an emulsion, which uses this principle to remove oil stains.

In addition, emulsification to remove oil stains and reaction to remove oil stains are common examples in life: soap is also an emulsifier, which is sodium carboxylate formed after the saponification reaction of oil and sodium hydroxide, which has the same effect as sodium dodecyl sulfonate.

The structure determines the properties, and the structure of dish soap is divided into two parts, which are shaped like - one end (polar) is a hydrophilic group that is easy to combine with water, and the other end (non-polar) is a lipophilic group that is easy to combine with oil.

When the dish soap is dissolved in water to clean the dirt, the lipophilic group is inserted into the oil and the hydrophilic group is surrounded by a large number of water molecules. (like an arrow inserted into the body of a prey) was rubbed and the dirt was dragged off the utensils and clothing.

It is mainly based on the principle of emulsification. Specifically, with the help of emulsifiers, the general emulsifier is an amphiphilic molecule (both hydrophilic and lipophilic), the lipophilic end of the emulsifier can wrap the oil stain on the clothes inside, and the hydrophilic end is exposed outside. According to the principle of similarity and dissolution, the "oil stains on clothes" wrapped in the emulsifier can be dispersed into the water and washed off.

The main ingredients of dish soap are sodium alkyl sulfonate, sodium fatty alcohol ether sulfate, foaming agent, solubilizer, fragrance, water, coloring and preservatives. Sodium alkyl sulfonate and sodium fatty alcohol ether sulfate are both anionic surfactants and petrochemical products, and their main role is to remove oil stains.

The decontamination principle of oil-stained dish soap: mainly rely on surfactant in the medium of water to dissolve, emulsify, disperse and suspend the dirt, and separate the dirt from the surface of the tableware through water rinsing to achieve the effect of cleaning the tableware. (Zhongwan).