Is milk a solution and why is milk not a solution

Question: Is milk a solution? Is it an emulsion?

Answer: Yes, milk is both a solution, an emulsion, or a colloid.

Milk contains lactose, which is similar to sucrose and dissolves easily in water, so milk contains a lactose solution. However, the fat ——— milk fat in milk are insoluble in water, but they are dispersed in milk in very small droplets (the fat in milk is liquid at room temperature) to form a fat emulsion.

So, milk is a cloudy emulsion again. Milk also contains proteins, which are dispersed in the form of an acid, so milk also contains colloids with proteins. In addition, there are some inorganic salts in milk, which can be dissolved in water to form a solution.

That is to say, milk is both a soluble emulsion and a colloid, with the smallest particles dispersed in the solution, the medium particles in the colloid, and the largest fat droplets in the emulsion. But even the largest droplets of fat are so small that they are difficult to distinguish with the naked eye. This means that its nutrients are very finely dispersed, and in our body, it is easy to mix with digestive juices and be easily absorbed and utilized through the intestinal wall.

It is precisely because the nutrients of milk are complete, evenly dispersed, and easily absorbed, that milk is especially beneficial to infants, the sick, and the elderly.

Supplement: 1. What is a solution:

One or several substances are evenly dispersed into another substance, and the resulting mixture is called a solution, like sugar water.

2. What are the characteristics of the solution?

1) The solution is uniform and stable;

2) The composition of all parts of the solution is the same.

Example: The solution A and B (density, composition, etc.) in the cup on the right are exactly the same.

3. Composition of the solution: solute and solvent.

Iodine is a solution. Is it transparent?

The solution is transparent, and the milk is opaque and hence does not belong to the solution.

Milk is a turbulent liquid, not a solution, shake it before drinking.

Milk is not a solution because milk does not conform to the characteristics and laws of solution. Milk is not uniformly stable, and usually milk looks uniform and stable because of the addition of anticoagulants. Looking at the diameter of the dispersion, the diameter between 1 and 100 nanometers is colloidal, less than this range is the solution, and larger than this range is the turbidity.

Whereas, milk particles are larger than 100 nanometers in diameter, so they are emulsions.

The efficacy of milkMilk is the best calcium for the human body**, so drinking milk in moderation can supplement calcium. The whey in milk has a certain elimination effect on facial wrinkles and can keep ** smooth and moisturized. Drinking milk in moderation has a positive effect on beauty and beauty, but it is not decisive, so you should not blindly drink too much milk, milk is a drink with high nutritional value, which can be drunk by men, women and children.

Milk is not a solution, but a "colloid", a substance that is between a solution and a turbidity.

Colloid, also known as colloidal dispersion, is a relatively homogeneous mixture, in which the colloid contains two different states of substance, one dispersed phase and the other continuous phase.

A part of the disperse is composed of tiny particles or droplets, and the dispersion system of the disperse particles with a diameter of 1 100 nm is colloidal; Colloids are a kind of dispersion systems with a diameter of dispersed particles between the coarse dispersion system and the solution, which is a highly dispersed multiphase heterogeneous system.

Common colloids: Fe(OH)3 colloids, Al(OH)3 colloids, silicate colloids, starch colloids, protein colloids, soybean milk, fog, ink, coatings, AGI colloids, AG2S colloids, AS2S3 colloids, colored glass, jelly, egg whites, blood, etc., such as noodles are a common starch colloid, because the solubility absorbs water and expands.

Solution:

The mixing of two or more substances to form a homogeneous and stable dispersion system is called a solution. The solution can be in liquid form or in gaseous and solid state. For example, air is a gaseous solution, and solid solution mixtures are often called solid solutions, such as alloys.

In general, compounds that can dissolve other substances are called solvents, and substances that are dissolved are called solutes. When a gas or solid is dissolved in a liquid, the liquid is called a solvent and a gas or solid is called a solute. When two liquids dissolve each other, the large amount is generally called the solvent, and the small amount is called the solute.

Not a solution, milk is a colloid, is a substance between a solution and a turbid liquid, colloid, also known as colloidal dispersion is a relatively homogeneous mixture, in the colloidal contains two different states of substance, a dispersed phase, the other continuous phase.

A part of the disperse is composed of tiny particles or droplets, and the dispersion system of the disperse particles with a diameter of 1 100 nm is colloidal; Colloids are a kind of dispersion systems with a diameter of dispersed particles between the coarse dispersion system and the solution, which is a highly dispersed multiphase heterogeneous system.

What is SolutionA solution is the dispersion of one or several substances into another to form a homogeneous, stable mixture.

1. Gaseous solution: gas mixture, referred to as gas.

2. Liquid solution: the dissolution of gas or solid in liquid state or liquid-liquid dissolution, referred to as solution such as brine.

3. Solid solution: a solid mixture that is molecularly dispersed with each other, referred to as solid solution such as alloy.

The composition ratio of the solution has a certain continuous variation range, and the properties of the solution change continuously with the composition ratio, and uniformity means that the degree of dispersion of the substance in this single phase reaches the molecular level. Entities with the above characteristics may be gaseous, solid, or liquid, and the term solution refers specifically to liquid solutions, especially aqueous solutions.

Milk is not a solution. A solution is one or several substances distributed in molecular or ionic form and is formed in a highly dispersed substance of another species.

First, stable mixture, while the milk is uneven.

1. It is unstable and does not conform to the characteristics of the solution, so it is not a solution and belongs to the emulsion.

The density, composition and properties of the solution are exactly the same, and when the temperature is unchanged and the amount of solvent is unchanged, the solute and the solvent will not be separated for a long time, and the solution must be a mixture.

Milk is an emulsion, and the emulsion is turbid, and after standing for a considerable period of time, its components will be divided into two layers according to different densities.

When judging whether a substance is a solution, the three properties of the solution can be used as the basis for judgment: uniformity, stability, and mixture.