What is lead iodide?
PbI2 is a salt v chemical name Lead iodide. That is additionally called Plumbous iodide or lead (II) iodide or command diiodide. That is a great oxidizing agent, burns through a green coloured flame. That is widely supplied in printing, photography, and also to seed clouds.
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Lead diiodide is a crystalline solid, odourless and yellow in colour. It is insoluble in water and denser when compared to water. That is a threat to the environment and immediate steps need to be taken to stop the spread.
Properties of lead iodide – PbI2
| PbI2 | Lead iodide |
| Molecular weight of PbI2 | 461.01 g/mol |
| Density of command iodide | 6.16 g/dm3 |
| Melting point of lead iodide | 402 °C |
| Boiling allude of command iodide | 953 °C |
Lead iodide framework – PbI2
Production of lead iodide
Plumbous iodide is typically produced through a twin displacement reaction between lead nitrate and potassium iodide in water.
Pb(NO3)2 + 2 KI → PbI2 + 2 KNO3
At room temperature, potassium nitrate is soluble whereas command iodide is insoluble and also therefore it experience precipitation.
It can likewise be produced by reaction iodine vapor v molten lead at a temperature selection of 500 to 700 °C.
Another an approach to obtain lead iodide in the type of a slim film is through depositing a movie of PbS and also exposing it come iodine vapor. The reaction is together follows:
PbS + I2 → PbI2 + S
The sulfur (S) obtained is washed v dimethyl sulfoxide (C2H6OS).
Health hazards
Some of the at an early stage symptoms that occur due to swallowing or inhaling lead (II) iodide room gastrointestinal disorders, constipation, weakness, paralysis. Ingesting big amounts of this compound results in irritation of the alimentary tract. That is non-combustible and also when heated to decompose it develop toxic and also corrosive fumes.
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Learn much more about the Structure, physical and chemical properties of PbI2 along v the reaction in between iodide ions and also hydrogen peroxide from the specialists at BYJU’S.