Bulk glass water bottles is a lot of glassware that we use daily. They are used for drinking water, making tea, making coffee, drinking beverages, etc. When ordinary people see a glass, they have no doubt whether it is safe and healthy. However, this seemingly ordinary glass is not as simple as you think.
First, let’s understand how the bulk glass water bottles is made.
Bulk glass water bottles, as the name suggests, are made of glass, which is formed by melting silica and other chemicals (the main raw materials are: soda ash, limestone, quartz). It is an amorphous state with an irregular structure. Solid is a mixture.
When some bulk glass water bottles is smelted, compounds of transition elements such as cobalt (Co), manganese (Mn), nickel (Ni), iron (Fe), copper (Cu) are added to the silicate to selectively absorb visible light and color it. , the last thing I saw were red, orange, yellow, green, blue, purple and other colors.
These metal elements make people feel unsafe at first sight, and many of them are toxic substances. However, the seemingly toxic substance reacts with silicate to form a four- or six-coordinated complex, which becomes very stable and cannot be decomposed by boiling water at 100°C, making it very safe.
What substances on which glass water bottles bulk is harmful to the body?
I often hear experts say that a certain glass water bottles bulk is poisonous and harmful to the human body. So, is the glass water bottles bulk harmful to the body? Most glasses cups are very stable and not harmful to the body. However, a small number of glasses cups are toxic to the body and can harm our health.
Let’s analyze it from two aspects.
1.Leaded glass bottle
The most popular ones currently on the market are crystal glass bottle and ordinary glass bottle. There are lead-free crystal glass bottle and lead-containing crystal glass bottle. Lead-free glass bottle means that there is no lead in the glass. Less than 24% is called lead-added crystal, and 24% or more lead is called full-lead crystal.
Why is lead added to the glass drink bottle?
The advantage of having lead in the glass drink bottle is that it is heavier! It has texture in the hand, is more transparent and bright, has a high refractive index, looks crystal clear, and has a metallic sound when struck, which is beautiful and pleasant to the ear, so it is called crystal glass drink bottle. This kind of glass drink bottle material is also relatively expensive and is mostly used in high-end handicrafts. High-end crystal glass drink bottle often contain lead oxide for a better look and feel.
We know that lead is a heavy metal and is definitely harmful to the human body. Long-term use of lead-containing glasses will lead to an increase in the accumulation of lead in the blood, which will lead to reduced memory and intelligence, mental disorders, nightmares, insomnia and other problems. Lead poisoning is more harmful to children and can easily cause mental retardation in children.
2.Color spray glass water bottle
Glass water bottle itself is colorless, and many of the colored glass water bottle on the market are spray-colored glass water bottle. Although these colorful glasses bottles are pleasing to the eye and add interest to life, they contain harmful and even highly toxic elements, such as lead, chromium, cadmium, nickel, copper, manganese and other heavy metals, as well as arsenic, Fluorine, chlorine, sulfur and other non-metals.
What is the disadvantages of spray-colored glass bottles?
The glass bottles will include harmful elements and that will be diluted out during long-term use. After long-term drinking, they will enter the human body and cause various harms. It can cause varying degrees of harm to the respiratory tract, teeth, digestive system, liver or kidneys.
How to tell whether a glass flask good or bad?
There are so many glass flasks on the market, how can we choose a glass flask that is safe? Let’s expand and explain from point 6 below.
1.Distinguish color-sprayed glasses
Use a knife to scrape the bottom or mouth of the cup. Spray-colored paint will peel off. Also, if you look at it with your eyes, the spray paint may be uneven and the color may be thick or thin.
2.Identification mark
High-end lead-free glass cup does not contain lead but contains potassium, and is marked on the outer packaging. There is no potassium label on leaded glasses, which are crystal glassware commonly found in some supermarkets and street stalls.
3. Look at the heat resistance
Glass cups can generally withstand very high temperatures, but 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 use boiling water to make tea in a particularly cold lead-free glass, it will easily burst.
4. Look at the color
Leaded crystal glasses cups have better refractive properties and can show better refractive properties. For example, some various shapes of ornaments, crystal wine glasses bottle, crystal lamps, etc. are made of leaded glass.
5.Try the severity
Compared with lead-free crystal glass products, lead-containing crystal glass products are heavier and feel thicker. The lead-free crystal glass mug is slightly thinner and comfortable to hold.
6.Listen to the sound
Beyond the metallic sound emitted by lead-containing crystal glasses water bottle, the sound of lead-free glass mug is more melodious and is known as a “musical” glass.
Therefore, when we choose a glass flask, the first priority is to choose a non-toxic and harmless glass flask, and the second is whether the appearance of the glass flask is beautiful. When we buy glasses, it is best to choose well-known brands, as the quality will be more guaranteed. I believe you are now also a master at choosing a good glass bottle.
