Generally no. The most feared thing about single crystal silicon materials is the radiation source. Radiation can cause changes in the crystal lattice and affect the properties of the material. Neutron radiation is only used in part of the crystal ingot drawing process. Neutrons will not form a radiation source, but during the manufacturing process, the single-crystal silicon will be doped with certain impurities to improve the physical properties of the material such as electrical conductivity. Among them, boron, phosphorus, arsenic, etc. are commonly used. doping is less, it is not harmful to the human body. Among them, phosphorus and arsenic are toxic elements that we know in excess. There are also some chemicals harmful to humans in other production processes. , but the residual quantities in single crystal siliconultimately are very weak.
Can the water in solar water be eaten?
Most solar water heater instructions say: Do not eat. The reasons are:
First, although the water entering the water heater is clean tap water, the metal used to make the water heater pipes often contains harmful poisons that exceed the standard, such as lead, cadmium, manganese, arsenic, etc., which will cause long-term damage. Used for cooking, these harmful substances will affect human growth and development and are extremely harmful to human health.
Secondly, tap water entering the water tank is secondarily polluted by the pipe network, and chlorine in the water will increase the amount of trihalomethanes which produce carcinogens.
Third, the temperature of the water heated by solar water heatersis generally between 40 degrees and 70 degrees, which is suitable for large-scale reproduction of germs and viruses. Additionally, water in solar energy is often stored overnight. Due to long-term retention and the influence of temperature, the chlorine in the water for disinfection will gradually decrease or even disappear, promoting the growth of microorganisms and bacteria in the water . water into the water storage tank and pipes.
So for health reasons, I don't think you should use the hot water from solar water heater for cooking, cooking or boiling water for drinking.
What are common and inexpensive compounds of arsenic metalloids? Except (oxygen-containing compounds)?
No.
Instructions for solar water heaters carry the warning “not for consumption.” Although the water entering the water heater ist clean tap water, the materials used to make the water heater and its supporting components (such as metal pipes, etc.) can often contain harmful poisons such as lead, cadmium, manganese and arsenic.
In addition, the temperature of the water heated by solar water heaters is between 40°C and 70°C, which is conducive to the reproduction of bacteria and viruses. In addition, whether it is a solar water heater or an electric water heater, there is a water storage tank. Over time, bacteria can grow and previously heated water will become contaminated. The water from the water heater is therefore not drinkable.
Detailed information
The solar water heater wipes the dust on the surface according to the dirt. Keeping it clean can maintain high heat collection efficiency. At the faucet filter, scale in the water pipes will accumulate here, youYou must therefore remove and clean it regularly.
When cleaning the interior, you can open the water inlet of the solar water heater, pour white vinegar into the water storage tank and let the water heater work automatically for 20 to 30 minutes. Next, open the drain. outlet to drain the white vinegar that has cleaned the scale. Finally, fill the tank with water, circulate it for 2 minutes then drain it.
Water heaters should be cleaned every two to three years. During operation, be sure to unplug the plug, close the cold water and hot water angle valves under the electric water heater, and wait for the water in the tank to cool down before cleaning. In order to ensure safety and avoid unclean cleaning, lack of professional equipment and damage to the water heater, those who meet the conditions are recommended to ask professional maintenance personnelessential to clean it.
People's Daily Online - Water heaters should be bathed regularly. Will sand and rust worsen water quality? Impurities and tartar will cause itching on the skin.
Ifeng.com - Water? in water heaters should not be drunk.
In addition to oxygen-containing compounds, common cheap compounds of arsenic metals also include:
1. - a very toxic colorless gas that can be used in semiconductor manufacturing and chemical analysis.
2. Arsenic trichloride (AsCl3) – a colorless liquid that can be used as a solvent, catalyst, and arsenic-doped semiconductor material.
3. Gallium arsenide (GaAs) – a semiconductor material commonly used in the manufacture of electronic devices such as solar cells, LEDs and microprocessors.
4. Germanium arsenide (GeAs) – a semiconductor material that can bere used to make electronic devices such as microprocessors and solar cells.
5. Aluminum arsenide (AlAs) – a semiconductor material that can be used to make high-speed electronic devices and solar cells.
These compounds are relatively common and inexpensive metallic arsenic compounds.