14
2024
-
05
What is the difference between sodium calcium glass and high borosilicate glass?
Author:
Sodium calcium glass and high borosilicate glass are two common glass materials, each with unique chemical composition and physical properties, making them suitable for different application environments.
1、 Sodium calcium glass
Sodium calcium glass is a common type of glass, accounting for approximately 90% of global glass production. It is mainly composed of quartz sand (silica), sodium carbonate (soda ash), and calcium carbonate (limestone), and may also contain small amounts of magnesium and/or aluminum. The main characteristics of sodium calcium glass include:
1. Low cost: Due to abundant raw materials and mature production processes, the cost of sodium calcium glass is relatively low.
2. Easy to process: Sodium calcium glass is relatively easy to cut and shape during processing, making it suitable for large-scale production.
3. Good optical properties: with high transmittance, suitable for daily products such as windows and bottles.
4. Chemical corrosion resistance: generally has good corrosion resistance to most acids and salts, but is sensitive to alkaline substances.
5. General thermal stability: Sodium calcium glass has a high coefficient of thermal expansion and is not suitable for rapid or intense temperature changes.
2、 High borosilicate glass
High borosilicate glass contains a large amount of silica and boric acid, as well as fewer sodium and calcium components. The characteristics of this type of glass include:
1. Strong heat resistance: Due to its lower coefficient of thermal expansion, high borosilicate glass can withstand sharp temperature changes without breaking.
2. Chemical corrosion resistance: It has excellent corrosion resistance to most acids and bases.
3. Wear resistance: high hardness and scratch resistance.
4. High cost: Due to high production and raw material costs, the price of high borosilicate glass is usually higher than that of sodium calcium glass.
5. Main applications: laboratory utensils, heat-resistant cooking utensils, lighting fixtures, and certain high-end consumer goods.
3、 Application comparison
1. Household products
Sodium calcium glass is very common in daily household products such as beverage bottles and window glass due to its low cost. On the contrary, high borosilicate glass is commonly used in situations that require high temperature resistance and chemical stability, such as heat-resistant glass cooking utensils in kitchens.
2. Laboratory and medical equipment
In the laboratory, high borosilicate glass is widely used in laboratory glassware due to its heat and chemical resistance. Similarly, certain devices in the medical industry also choose high borosilicate glass to ensure chemical stability and high temperature resistance.
3. Lighting products
For lighting products, especially lamps working in high-temperature environments, high borosilicate glass is the preferred material because it can withstand thermal stress.
Previous Page
Next Page
Previous Page
Next Page
JX6304 Barware Goblet Wine Glass Supply
2025-04-27
Domestic Sales Department:
Chongqing Hechuan Jinxing Glass Products Co., Ltd.
Address: Group 7, Wadian village, Qingping Town, Hechuan District, Chongqing
Tel: 023 - 42419888 023 - 42419555 023 - 42419666
Foreign Sales Department:
Chongqing Keruida Glass Products Co., Ltd.
Add: 5-6, Tower 4，Zhongyu Duhui Shouzhan, No. 18, Jinshan Road, Xinpaifang, Yubei District, 401120, Chongqing, China.
Tel: 023-67477923
Email:sales@cqkeruida.com