1Is the cheap glass in 0 yuan poisonous? How to identify the toxicity of glass?

Many people don't know much about glass, because glass is the most commonly used substance in daily drinking cups, but what is the quality of glass and is it toxic? These issues are the topics that people pay close attention to, so today I will tell you whether the cheap glass in 10 yuan is toxic or not, and how to identify the toxicity of glass.

10 yuan's cheap glass is not necessarily toxic, but the glass coated with pigments contains very harmful substances, such as heavy metals such as lead, chromium, cadmium, nickel, copper and manganese, and nonmetals such as arsenic, fluorine, chlorine and sulfur. In the process of industrial production, these elements are easily left on the cup, which will naturally cause harm to the human body.

Identification of glass poisoning can be carried out from the following aspects:

1. Identify whether it is toxic by identification: is it marked? Lead-free glass is non-toxic, and lead-free glass is mostly potassium, which is generally marked on the outer packaging; Lead-containing glass proves that it contains lead, and some cheap crystal glassware contains lead and has a high content of lead oxide, so the probability of labeling lead-free glass is relatively high.

2. Distinguish whether it is toxic by color: In general, lead-containing glass has much better refraction than lead-free glass, so its color is beautiful, and it is often used as a crystal lamp or an ornament. Therefore, most bright and beautiful lead-containing glasses have a high probability of containing poison, while dull lead-free glasses have a low probability of containing poison.

3. Judging whether it is toxic according to the heat resistance: Glass has the characteristics of high temperature resistance. Lead-free crystal glass is a kind of glass with high expansion coefficient, and its extreme cold resistance and heat resistance are poor. If you use a lead-free cup to make tea with boiling water, it will easily explode and prove to be non-toxic.