1) The main difference between the two glasses in the difference in glass composition. Soda-lime glass is mainly composed of silicon, sodium and calcium; borosilicate glass is mainly composed of silicon and boron.

2) The difference between the properties of the two glasses is mainly due to their different compositions.

3) The different ingredients are due to the different ingredients added to the chemical raw materials.

Lead-free glass has better refractive index than traditional soda-lime glass, which perfectly shows the refractive performance of metal glass; for example, some ornaments of various shapes, crystal wine glasses, crystal lamps, etc. are made of lead-containing glass.

[Look at the weight of the wine glass]

Compared with lead-free crystal glass products, soda lime glass products are slightly heavier.

[Listen to the sound]

Tapping a soda-lime glass will produce a dull sound similar to metal, but the sound of lead-free glass is more pleasing to the ear, rich in the reputation of a "music" glass, and a nine-second lingering sound.

[Look at the label of the ingredients in the wine glass]

Soda-lime glass generally contains potassium, mostly high-end handicrafts and marked on the outer packaging; while lead-containing glass contains lead, that is, crystal glassware commonly found in some supermarkets and stalls, and its lead oxide content can reach 24%.

[See heat resistance]

Glasses can generally withstand high temperatures, but generally have poor resistance to extreme cold and heat. Lead-free crystal glass is a glass with a high expansion coefficient, and its resistance to extreme cold and heat is even worse. If you make tea with boiling water in a particularly cold lead-free glass, it is easy to burst.

[Look at toughness]

Lead-free crystal glass is tougher than soda lime glass, that is, impact resistance.