Arsenious acid
Arsenious acid is a chemical compound with the formula H3AsO3. It is also known as arsenic trioxide or white arsenic. This compound is found in the environment, and it is also produced by certain bacteria. Arsenious acid is a weak acid and a powerful oxidizing agent.
Chemical properties[edit | edit source]
Arsenious acid is a white, crystalline solid. It is soluble in water and in many organic solvents. It is a weak acid, with a pKa of about 9.2. Arsenious acid can be oxidized to arsenic acid, H3AsO4, by strong oxidizing agents.
Production[edit | edit source]
Arsenious acid is produced by the oxidation of arsenic by air in the presence of water. It can also be produced by the reaction of arsenic trioxide with water.
Uses[edit | edit source]
Arsenious acid has been used in medicine, particularly in the treatment of leukemia and other types of cancer. It is also used in the manufacture of glass, as a wood preservative, and in the production of certain types of semiconductors.
Health effects[edit | edit source]
Exposure to arsenious acid can cause a variety of health problems, including skin irritation, nausea, vomiting, diarrhea, and damage to the nervous system. Long-term exposure can lead to more serious health problems, including cancer.
See also[edit | edit source]
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