Borosilicate glass is a common glass raw material used in the production of glass bongs, and quartz glass is also often used as the main raw material in the production of bong accessories. So what is the difference between these two kinds of glass?
1. Different composition
Borosilicate glass composition of sodium oxide, boron oxide, and silicon dioxide, and boron and silicon content in the glass is high: 12.5 ~ 13.5%, silicon: 78 ~ 80%.
Quartz glass composition is silicon dioxide: content is 99.99
2. Different temperature resistance.
Borosilicate temperature in the strain temperature of 520 degrees, softening temperature of 820 degrees
Quartz glass temperature a 1100 degrees melting point is about 1700 degrees.
3. Different chemical properties
Quartz glass is not only resistant to high temperature, but also resistant to acid, corrosion. Good electrical insulation, etc.
Quartz glass is a single-component silica special industrial glass. The hardness of this glass can be up to seven Mohs, with high temperature resistance, low coefficient of expansion, heat shock resistance, chemical stability, and good electrical insulation properties, and can transmit ultraviolet and infrared rays. In addition to hydrofluoric acid, hot phosphoric acid, a general acid that has good acid resistance. According to the transparency, it is divided into two categories: transparent and opaque. According to the purity, it is divided into three categories: high purity, common, and doped. Crystal, silica, silicide as raw material, high temperature melting or chemical vapour deposition. Melting methods include electrofusion and gas refining.
High borosilicate glass (also known as hard glass) is the use of glass at high temperatures in the conductive properties of the state, through the heating of the glass inside the glass to achieve the melting of the glass, processed through the production process, due to the linear coefficient of thermal expansion of (3.3 Shi 0.1) * 10-6 / K, also known as 'borosilicate glass 3.3'. It is a special glass material with a low expansion rate, high temperature resistance, high degree of hardness, high transmittance, and high chemical stability, which is widely used in various industries due to its excellent performance.
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