The difference between high borosilicate glass and soda lime glass

The difference between high borosilicate glass and soda lime glass

1. Differences in ingredients

High borosilicate glass is mainly composed of three elements: silicon, boron and oxygen. The boron content is high, which can improve the heat resistance and corrosion resistance of the material. Soda-lime glass is composed of elements such as sodium carbonate, calcium oxide, silicon and oxygen. The higher sodium and calcium content can improve the material's impact resistance and light transmittance.

2. Differences in physical properties

High borosilicate glass has high thermal resistance and chemical stability, and can withstand temperatures up to 900°C, so it is often used in high-temperature experiments. Soda-lime glass has higher impact resistance and light transmittance, and is easier to process and shape.

3. Differences in chemical properties

High borosilicate glass has relatively high chemical stability and can withstand corrosion from chemicals such as strong acids and alkalis, so it is often used to make chemical reaction vessels. Soda-lime glass, on the other hand, has poor stability to acidic and alkaline solutions and is not suitable for making containers such as reagent tanks that require chemical corrosion resistance.

In summary, both borosilicate glass and soda-lime glass have their own advantages and disadvantages, and the appropriate material should be selected according to specific usage requirements to achieve the best experimental results.

Why is soda lime glass not recommended?

Soda-lime glass (also known as ordinary glass) is a common glass material, but for some special application scenarios or specific needs, its use may not be recommended. Here are some common reasons:

1. Low strength: Soda-lime glass is relatively fragile and its strength is relatively low. In some scenes with high pressure, high impact, or where large forces are required to withstand, the strength of soda-lime glass may not meet the requirements and may easily crack or shatter.

2. Not resistant to high temperatures: Soda-lime glass may deform or melt in high-temperature environments. For scenes that require resistance to high temperatures or flame heat sources, such as kitchen porcelain backboards, laboratory utensils, etc., it is generally not recommended to use soda-lime glass.

3. Easy to burst: When soda-lime glass is subject to sudden temperature differences, sudden impacts, or high pressure, it may burst. This is due to the large thermal expansion coefficient and low tensile strength of soda-lime glass.

4. Opacity or modeling limitations: Soda-lime glass is usually translucent or opaque and cannot provide transparency or light transmittance requirements. For applications that require transparency or light transmittance, such as building curtain walls, windows, etc., it is usually necessary to use glass materials with better transparency, such as tempered glass, laminated glass, etc.

Is it safe to drink from a soda lime glass?

Soda-lime glass is relatively safe and reliable. It is not likely to cause adverse effects on the human body. Soda-lime glass is an aluminosilicate laminated glass. It has relatively good organic chemical stability and relatively good heat resistance. It It has no toxicity or side effects, and it will not have any adverse effects on physical and mental health, and its reliability is relatively good.