Can the vitreous react with a base 10

Glass vials are not mechanical mixtures of Na2SiO3, Casio3 and SiO2, which combine with each other to form long chains of polysilicic acid, and metal cations are surrounded by long chains of irregular polysilicic acid. Therefore, the components in the glass are not independent components, and the same SiO2 and Na2SiO3 are different in nature. The inside of the bottle mouth and the glass stopper are frosted, the surface is rough, the lye is easy to retain, and the water evaporates, and the concentration of the lye increases, making it easier for the two to react.

Other parts are difficult to react to because of the smooth surface. Because the long chain of polysilicate is similar to silica in terms of composition and structure.

To sum up, the reaction between glass and alkaline solution is usually simply regarded as the reaction of silica with alkaline solution.

The main components of ordinary glass are silicates and oxides of silicon! and chemical alkali (containing hydroxide) reaction), so the bottle containing alkali should use a rubber stopper! Prevents sticking!

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Generally, the main component of glass is silica, and the same is true for the surface of glass. With the exception of hydrofluoric acid, glass does not react with acids. The reaction speed with strong alkali is slower, so it can still be used to hold strong alkali.

However, for grinding bottles, after the mouth of the bottle and the stopper are sanded, the surface area is greatly increased, and the reaction speed is also greatly increased when it comes into contact with strong alkali, and the generated silicate is quickly filled and cemented in the gap between the grinding bottle and the stopper, which makes the stopper extremely difficult to open, so the bottle containing strong alkali does not use the frosted stopper.

Silica is an acidic oxide that does not react with ordinary acids (except hydrofluoric acid) and does not react with water. Silicates and water are formed by reacting with a hot, concentrated alkali solution or molten alkali. It reacts with a variety of metal oxides at high temperatures to form silicate.

The smooth surface area is small, and the rough surface area is large, and of course the former is not easy to react. Of course, even the reaction is extremely slow, and it will not affect the use at all. The main reason for the rent is that the lye will corrode the grinding hole of the glass bolt and die, so He Liangzhao wants to use the structure of the slag rubber tube.

Because glass contains silica, it reacts with alkaline solutions. The NaOH solution reacts with the SiO in the glass to form Na SiO, and the aqueous solution of Na Sio, commonly known as "water glass", is a binder that makes the stopper partially bonded and unable to open. Therefore, the reagent bottle containing the NaOH solution should not be corked with glass, but with a rubber or wooden stopper.

SiO2 has high melting point, high hardness, insoluble in water, and clean SiO2 with good colorless light transmittance. It has good chemical stability, generally does not react with other acids except HF, and can react with strong alkali (NaOH), which is an acidic oxide, and can react with alkaline oxide under certain conditions.

Sodium hydroxide corrodes slowly to glass with a smooth surface, because the glass surface is smooth and the molecular arrangement is dense, and the corrosion ability of sodium hydroxide is not enough to corrode the glass. The glass stopper is frosted and easily corroded by sodium hydroxide, so you can only use a rubber stopper, otherwise the glass stopper may be stuck with the bottle.

Glass contains silica, so sodium hydroxide and silica react to form sodium silicate.

2naoh+sio2 ====na2sio3+h2o)

It can be stored temporarily, and plastic bottles are required for permanent storage.

The inner wall of the glass bottle is smooth, the contact area with NaOH is small, and the corrosion is very slow. Even if it is corroded, it only forms a sodium silicate film on the inner wall, and it has no effect.

However, the container cannot be corked with glass, because the glass bottle mouth and stopper are generally grinding, and the contact area with OH is large, and once the reaction will produce viscous sodium silicate to stick to the bottle mouth.

Dioxide oxide cannot react with strong alkali solids, but only with strong alkali solutions. For example, the reaction of glass with caustic soda solution: SiO2+2NaOH+H2OH=Na2SiO3+2H2 to produce sodium silicate and hydrogen.

But this reaction stops as soon as a more stable sodium silicate is formed and covers the glass surface. So glass bottles can be filled with caustic soda solids and their solutions. However, the container should not be corked with glass, as even a small amount of silicate can be generated to bond the glass stopper to the bottle finish.

Glass contains silica components, which can react with alkali, and other components do not react with alkali, so strong alkali can slowly corrode glass, so glass containers can only hold strong alkali solutions for a short time.

Storage: It should be in a plastic bottle;

In glass bottles, it is generally a dilute solution, which is convenient for observing the color.

The inner wall of the glass bottle is smooth, which can be seen as a dense protective film, while the frosted mouth does not have this characteristic, so the stopper should be made of rubber stopper.

Glass bottles are true, as the inner walls are very smooth and dense and do not react with sodium hydroxide.

The glass bottle is mainly silica, which reacts with hydrofluoric acid and does not react with alkali.

This will not be the case.

The main ingredient of quartz glass is silica dioxide.

Generally, it is more than 99%, thermal phosphoric acid and HF acid have obvious erosion of quartz glass, and the general alkali has only a small amount of erosion on quartz glass, and ordinary glass is not too alkali-resistant. But in ordinary glass, zirconia is added.

It is possible to improve its alkali resistance.

Tempered glass also has silica, which reacts under heated conditions.

The main component of glass is SiO2, which can react with strong alkalis.

For example, SiO2+2NaOH=Na2SiO3+H2O

In addition, SiO2 reacts with hydrofluoric acid, SiO2+4HF=SIF4+2H2O

Glass can react with hydrofluoric acid HF.