Lead citrate

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Lead citrate
Lead citrate.svg
IUPAC name
2-hydroxypropane-1,2,3-tricarboxylate; lead(2+); trihydrate
Other names
Lead citrate trihydrate
3D model (JSmol)
ECHA InfoCard 100.007.402 Edit this at Wikidata
EC Number
  • 208-141-1
  • InChI=1S/2C6H8O7.3Pb/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6
  • C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.[Pb+2].[Pb+2].[Pb+2]
  • trihydrate: C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.C(C(=O)[O-])C(CC(=O)[O-])(C(=O)[O-])O.O.O.O.[Pb+2].[Pb+2].[Pb+2]
Molar mass 999.8 g·mol−1
Appearance White odorless powder or crystals
Density 4.63 g/cm3
Boiling point 309.6 °C (589.3 °F; 582.8 K)
Soluble in water, slightly soluble in alcohol[1]
GHS labelling:
GHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
H302, H332, H360, H373, H410
P201, P202, P260, P261, P264, P270, P271, P273, P281, P301+P312, P304+P312, P304+P340, P308+P313, P312, P314, P330, P391, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Lead citrate is a compound of lead and citrate that is primarily used as an enhancer for heavy metal staining in electron microscopy.[2] This salt binds to osmium and uranyl acetate and enhances contrast in many cellular structures. Lead citrate is highly reactive with carbon dioxide.


  1. ^ Dale Perry (April 2016). Handbook of Inorganic Compounds. CRC Press. p. 225.
  2. ^ Arun Sharma and Archana Sharma (2014). Chromosome Techniques: Theory and Practice. Butterworth-Heinemann. p. 285.