Silicon is obtained from silica, which is found in abundance in the Earth's crust as a major component of sand and quartz. It is commonly extracted from silica through a process called carbothermic reduction, where silica is mixed with carbon and heated to high temperatures in an electric arc furnace to produce silicon.
Silicon is typically obtained from mining quartz, which is a common mineral found in the Earth's crust. The quartz is then processed to extract the silicon, which is used in various industries for making electronic devices, solar panels, and other products.
SiO2 is a covalent network compound known as Silicon dioxide.
phosphorus-doped silicon ( n-type semiconductor) can be be produced by adding phosphorus to silicon to obtain a mixture, then heating and melting the obtained mixture. Or add phosphorus to already melted silicon.
Silicon is preferred over carbon for semiconductor fabrication because it is abundant, easily obtained in high purity, and has well-established processing techniques. Silicon also has a higher mobility for charge carriers, making it more efficient for electronic applications compared to carbon. Additionally, silicon dioxide forms a stable insulating layer with silicon, enabling the creation of reliable semiconductor devices.
To separate silicon from sand, you can use a process called "extraction." Silicon is typically found in sand in the form of silicon dioxide (SiO₂). Here's a common method to separate silicon from sand: **Conversion to Silicon Tetrachloride (SiCl₄):** Heat a mixture of sand (SiO₂) and carbon in the presence of a catalyst (usually copper) to produce silicon carbide (SiC). [ SiO_2 + 3C \xrightarrow{\text{heat}} SiC + 2CO ] React silicon carbide with chlorine gas (Cl₂) to form silicon tetrachloride (SiCl₄). [ SiC + 2Cl_2 \rightarrow SiCl_4 + CCl_4 ] **Distillation:** Silicon tetrachloride is a volatile compound, and it can be separated from other components through distillation because of its different boiling point. **Reduction to Obtain Silicon:** React silicon tetrachloride with hydrogen gas (H₂) to obtain silicon and hydrochloric acid (HCl). [ SiCl_4 + 2H_2 \rightarrow Si + 4HCl ] The silicon obtained in this step is typically in a powdered form. **Purification:** The obtained silicon may undergo additional purification processes, such as zone refining or chemical purification, to achieve high-purity silicon. This process outlines a common method used in industry to extract silicon from sand. Keep in mind that industrial processes may vary, and the specific method used can depend on factors such as the required purity of the silicon and economic considerations.
The anagram is silica, an oxide of silicon.
Silicon is obtained by heating silica, or silicon dioxide with carbon or magnesium (or some reducing agent) in an electric furnace. And after that this mixture is coated on the object to make it water proof.
The anagram is "silicon" (an element found in sand and quartz).
Silicon is an element. It is not "made" except by nature. Perhaps you are thinking of silicone which is the generic name for several compounds, some of which have metallic characteristics
Silicon is typically obtained from mining quartz, which is a common mineral found in the Earth's crust. The quartz is then processed to extract the silicon, which is used in various industries for making electronic devices, solar panels, and other products.
Semiconductors are needed to create the transistors on chips. Silicone is a natural semiconductor. Silicon is quite cheap and easily obtained, made from regular sand which is silicon dioxide. Silicone can be grown into large crystals very easily.
silicon tetrachloride is used1-To obtained pure silicon which is used as semiconductor2-In the formation of photo voltaic cell.Answered by;Asim MukhtarU.E.T. LAHORE
SiO2 is a covalent network compound known as Silicon dioxide.
phosphorus-doped silicon ( n-type semiconductor) can be be produced by adding phosphorus to silicon to obtain a mixture, then heating and melting the obtained mixture. Or add phosphorus to already melted silicon.
Where Silicon is Found Pure silicon cannot be found in nature, though it makes up approximately 25.3-28.0% of the earth's crust, making it second in abundance (oxygen is first). Silicon is obtained by heating silica, or silicon dioxide with carbon or magnesium (or some reducing agent) in an electric furnace. Ref:http://web1.caryacademy.org/chemistry/rushin/studentprojects/elementwebsites/silicon/WhereFound.htm
Silicon is preferred over carbon for semiconductor fabrication because it is abundant, easily obtained in high purity, and has well-established processing techniques. Silicon also has a higher mobility for charge carriers, making it more efficient for electronic applications compared to carbon. Additionally, silicon dioxide forms a stable insulating layer with silicon, enabling the creation of reliable semiconductor devices.
To separate silicon from sand, you can use a process called "extraction." Silicon is typically found in sand in the form of silicon dioxide (SiO₂). Here's a common method to separate silicon from sand: **Conversion to Silicon Tetrachloride (SiCl₄):** Heat a mixture of sand (SiO₂) and carbon in the presence of a catalyst (usually copper) to produce silicon carbide (SiC). [ SiO_2 + 3C \xrightarrow{\text{heat}} SiC + 2CO ] React silicon carbide with chlorine gas (Cl₂) to form silicon tetrachloride (SiCl₄). [ SiC + 2Cl_2 \rightarrow SiCl_4 + CCl_4 ] **Distillation:** Silicon tetrachloride is a volatile compound, and it can be separated from other components through distillation because of its different boiling point. **Reduction to Obtain Silicon:** React silicon tetrachloride with hydrogen gas (H₂) to obtain silicon and hydrochloric acid (HCl). [ SiCl_4 + 2H_2 \rightarrow Si + 4HCl ] The silicon obtained in this step is typically in a powdered form. **Purification:** The obtained silicon may undergo additional purification processes, such as zone refining or chemical purification, to achieve high-purity silicon. This process outlines a common method used in industry to extract silicon from sand. Keep in mind that industrial processes may vary, and the specific method used can depend on factors such as the required purity of the silicon and economic considerations.