What is colloidal silver How is it made?
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Sophia Nguyen
Studied at Harvard University, Lives in Cambridge, MA
As a subject matter expert in the field of materials science, I can provide you with an accurate description of colloidal silver and its production process.
Colloidal silver is a mixture that contains submicroscopic particles of silver suspended in a colloidal base, usually water but sometimes other liquids. These silver particles are typically between 1 and 100 nanometers in size. Colloidal silver has been used for various purposes, including as a disinfectant and in alternative medicine, although its effectiveness and safety for these uses are subjects of debate.
The production of colloidal silver can be done through several methods, but the most common ones involve chemical reduction or electrochemical processes:
1. Chemical Reduction: In this process, a silver salt, such as silver nitrate (AgNO3), is mixed with a reducing agent, often a soluble salt of a metal like copper (Cu), in a solution. The copper ions reduce the silver ions to metallic silver, which then forms particles that remain suspended in the solution.
2. **Electrochemical Method (also known as Electrocolloidal Synthesis)**: This involves the use of an electric current to reduce silver ions in a solution to metallic silver. A silver electrode is used as the anode, and the silver ions are reduced at the cathode, forming silver particles.
It's important to note that the quality and size of the silver particles can vary greatly depending on the method and conditions used, which can influence the properties and potential applications of the colloidal silver produced.
Colloidal silver is a mixture that contains submicroscopic particles of silver suspended in a colloidal base, usually water but sometimes other liquids. These silver particles are typically between 1 and 100 nanometers in size. Colloidal silver has been used for various purposes, including as a disinfectant and in alternative medicine, although its effectiveness and safety for these uses are subjects of debate.
The production of colloidal silver can be done through several methods, but the most common ones involve chemical reduction or electrochemical processes:
1. Chemical Reduction: In this process, a silver salt, such as silver nitrate (AgNO3), is mixed with a reducing agent, often a soluble salt of a metal like copper (Cu), in a solution. The copper ions reduce the silver ions to metallic silver, which then forms particles that remain suspended in the solution.
2. **Electrochemical Method (also known as Electrocolloidal Synthesis)**: This involves the use of an electric current to reduce silver ions in a solution to metallic silver. A silver electrode is used as the anode, and the silver ions are reduced at the cathode, forming silver particles.
It's important to note that the quality and size of the silver particles can vary greatly depending on the method and conditions used, which can influence the properties and potential applications of the colloidal silver produced.
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Works at the International Atomic Energy Agency, Lives in Vienna, Austria.
The particles of ionic silver are too small to be seen except with an electron microscope. Colloidal silver is made from silver particles that are microscopic in size, looks like wisps of smoke emanating from one of the silver electrodes, and will usually have a gray or silver tint to the solution.
2023-04-09 10:54:32
Benjamin Taylor
QuesHub.com delivers expert answers and knowledge to you.
The particles of ionic silver are too small to be seen except with an electron microscope. Colloidal silver is made from silver particles that are microscopic in size, looks like wisps of smoke emanating from one of the silver electrodes, and will usually have a gray or silver tint to the solution.
