Silver iodate

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Silver iodate (AgIO3) is a light-sensitive, white crystal made from silver, iodine, and oxygen.

Key facts
- Appearance: white crystals
- Formula: AgIO3
- Density: about 5.525 g/cm3
- Melting point: ~200°C; boiling point: ~1150°C
- Solubility: very weakly soluble in water (about 0.003 g per 100 mL at 10°C and 0.019 g per 100 mL at 50°C); more soluble in ammonia
- Structure: crystalline solid

How it’s made
- By reacting silver nitrate (AgNO3) with sodium iodate (NaIO3) or potassium iodate (KIO3); the reaction also releases sodium nitrate as a by-product.
- It can also form from iodine reacting in a solution of silver oxide.

What it’s used for
- In some laboratory tests, it can be used to help detect traces of chlorides in blood.

Safety and handling
- Silver iodate is light-sensitive and should be stored in a cool, dark place.
- It can irritate skin and eyes and may be harmful if swallowed or inhaled.
- Handle with appropriate protection, avoid creating dust, and keep away from heat and incompatible substances.