Lead (II) cyanide is an inorganic compound, a salt of lead metal and hydrocyanic acid with the formula Pb (CN) 2 , light yellow crystals, slightly soluble in water. Like all cyanides, it is very toxic.
| Lead cyanide | |
|---|---|
| Are common | |
| Systematic name | Lead cyanide (II) |
| Traditional names | Cyanide lead |
| Chem. formula | Pb (CN) 2 |
| Physical properties | |
| condition | light yellow crystals |
| Molar mass | 259.23 g / mol |
| Chemical properties | |
| Solubility in water | 0.01 [1] g / 100 ml |
| Classification | |
| Reg. CAS number | 592-05-2 |
| Reg. EINECS number | 209-742-1 |
| Smiles | |
| Security | |
| MPC | 0.01 mg / m³ |
| Toxicity | extremely toxic; strongest poison  |
| NFPA 704 |  0 four 0 |
Getting
- The action of potassium cyanide on a solution of lead (II) salt [2] :
Physical Properties
Lead (II) cyanide forms light yellow crystals.
It is slightly soluble in cold water, soluble in hot [3] [4] .
Chemical Properties
- It is dissolved in an excess of cyanides :
![{\displaystyle {\mathsf {2KCN+Pb(CN)_{2}\rightarrow K_{2}[Pb(CN)_{4}]}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/25b6c6836848a976e9790f4bd67dfc2bfa0ad095)
Application
- Electrolyte component in electroplating .
- Insecticide [5] .
Toxicity
Like all lead and cyanide compounds, lead cyanide is the strongest poison.
Notes
- ↑ Solubility of inorganic compounds in mixed and non-aqueous solvents
- ↑ Solozhenkin P. M. The role of lead cations in the process of gold leaching and cementation . - 2005.
- ↑ Chemist's Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
- ↑ CRC Handbook of Chemistry and Physics . - 89th Edition. - Taylor and Francis Group, LLC, 2008-2009.
- ↑ Chemical Encyclopedic Dictionary / Editorial board: Knunyants I.L. et al. - M .: Soviet Encyclopedia, 1983. - 792 p.
Literature
- Polyansky N.G. Lead. Analytical chemistry of elements. - M: Nauka, 1986 .-- 357 p.