Silver Nitrate (AgNO3)

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Definition - What does Silver Nitrate (AgNO3) mean?

Silver nitrate (AgNO3) is a type of chemical compound that is inorganic and caustic. Silver nitrate has many different applications such as for medical and photography, and has been used for many centuries.

Corrosionpedia explains Silver Nitrate (AgNO3)

Silver nitrate (AgNO3) is used in a variety of industries. Because it is caustic it can work as an antiseptic. In fact, one of the oldest uses of silver nitrate was for cleaning wounds. However, large amounts of silver nitrate are toxic to human beings.

Silver nitrate is often used as an intermediate substance to form other types of silver compounds. One type of silver compound, known as silver halide, is commonly made using silver nitrate. During the silver halide creation process, the nitrate (NO3) is replaced by bromide, chloride or iodide ions. These halides are frequently used in photography.

Some properties of silver nitrate:

  • Molecular weight: 169.872 g/mol
  • Density: 4.35 g/cm3 (24°C)
  • Melting point: 209.7°C (409.5°F)
  • Boiling point: 440°C (824°F)


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