Food-grade silica is mainly used to improve the taste and increase the lubricity of food taste.
The main functions are: 1, anti-hardener; 2, desiccant; Step 3 eliminate bubbles
Silicon dioxide itself is non-toxic and has no side effects; As long as it does not contain harmful impurities, it has basically no impact on health; Pull as much as you eat ~ ~ We often drink water and cook milk tea.
Harm of silicon dioxide powder to skin
Harmless, the most common is sand. Silica minerals refer to the same chemical formula (SiO? ), but due to their different structures, these minerals are collectively called xenoliths, including Yingshi, Fang Shiying and tridymite. These minerals mainly exist in granite, sandstone and biotite on the earth. There are two kinds of crystalline silica and amorphous silica in nature.
The main component of sand is silicon dioxide.
Crystalline silica can be divided into Synchrone, tridymite and Shi Ying due to its different crystal structures. Pure time is colorless crystal, and large and transparent prismatic time is called crystal. If the colors of crystals containing trace impurities are different, there are amethyst, tea crystal and so on. Ordinary sand is tiny timely crystals, including yellow sand (with more iron impurities) and white sand (with less impurities and purer).
Is silicon dioxide harmful to human body?
Generally speaking, it is harmless, but if it is fine particles, such as silica dust, it is harmful. Such as silicosis, is mainly harmful to human lungs.
The harm of silicon dioxide
Silicon dioxide plays an important role in daily life, production and scientific research, but sometimes it does harm to human body. The dust of silicon dioxide is very fine, and its specific surface area can be above1100m2/g, so it can be suspended in the air. If people inhale silicon-containing dust for a long time, they will suffer from silicosis (because silicon is called silicon and silicosis is called silicosis). Silicosis is an occupational disease, and its occurrence and severity depend on the dust content in the air, the silica content in the dust and the contact time with people. People who work in places with high silica dust content for a long time, such as mining, sand turning, sand blasting, ceramics making, refractory making and other places, are prone to this disease. Therefore, in these workplaces with more dust, strict labor protection measures should be taken, and various technologies and equipment should be adopted to control the dust content in the workplace to ensure the health of workers.
What role does silicon dioxide play as a food additive, and is it harmful to human body?
It can solve the problem of product caking due to moisture absorption and pressure, has adsorption effect, and is an excellent flow promoter. Used for egg powder, milk powder, cocoa powder, sugar powder, plant powder, instant coffee and flour.
Cheng Yanpei can contain silica and edible spices.
Silicon dioxide is a naturally occurring mineral, which is contained in many vitamin supplements on the market. Generally, silica is used as an anti-caking agent, and if ingested together with a normal and balanced diet, it contributes to the recovery of joint and cartilage injuries, such as arthritis. In addition, it is also good for the health of blood vessel wall. Just like excessive intake of multivitamins, excessive intake of silicon dioxide can also lead to side effects. However, as an anti-caking agent, the amount of silicon dioxide is very small. Therefore, silica as an anti-caking agent will not cause side effects.
How harmful is silicon dioxide to human body?
Silicon dioxide is ubiquitous "sand" & quartz sand; Chicken uot river sand ". Generally speaking, it is harmless to human body. Of course not.
Why is working in a silicon factory harmful to your health?
An occupation prone to silicosis. Supplement: Silicon is widely distributed in nature, and about 95% of it is pure time in various forms (including more than 97% free silica); Silicon is also the main component of the earth's crust. Therefore, when mining, quarrying and tunneling, workers are engaged in rock drilling and blasting. Have more opportunities to contact with dust; Stone rolling, crushing and mixing in the manufacture of glass, enamel and refractory materials, sand grinding, sand mixing, modeling, furnace building, sand blasting and sand cleaning in the foundry industry. , have access to silica dust (commonly known as silica dust). Free silica is usually represented by time. The contact time depends on many factors. In addition to its physical and chemical characteristics, the content of free silica in dust, the concentration of dust in the air, the particle size of dust, contact time and the body's defense function all affect the occurrence and severity of silicosis. Generally speaking, dust containing more than 80% free silica often causes typical diffuse collagen fiber changes in the lungs, and the disease progresses rapidly and is prone to fusion. When the free silica content is lower than 80%, the lesion is atypical and the disease progresses slowly. When it is lower than 10%, it mainly causes interstitial fiber changes and develops slowly, which is classified as other pneumoconiosis. A large amount of dust with high content of free silica is inhaled into the lungs, which often cannot be completely removed from the respiratory tract in time. Sometimes, although there are no signs of silicosis, silicosis reappears several years after leaving work. This situation is usually called "advanced silicosis"; Early silicosis patients will continue to develop even if they leave dust work. If there are no complications, patients can survive for a long time, but they often lose their ability to work. Therefore, in order to protect workers' health, China stipulates that the maximum allowable concentration of dust containing more than free silica 10% is 2 mg/m3; When it exceeds 80%, it is 1mg/m3. If this requirement can be met, silicosis will not occur. In addition, there are chronic diseases of respiratory system, such as chronic rhinitis, chronic bronchitis, emphysema and tuberculosis. Patients have poor defense function and weak airway mucus-cilia activity, which makes them more susceptible to illness than healthy people in the same environment.