Mercuric nitrate (I) - a chemical compound only exists videdimera Hg2 (NO3) 2.
In pure form - colorless crystals in water are hydrolysed soluble in carbon disulfide, and nitric acid. Solutions have strong reducing properties. To prevent the partial air oxidation in solution is added mercuric nitrate free mercury.
Forms a crystalline Hg2 (NO3) 2 • 2H2O. The air loses crystal water.
Upon dilution mercuric nitrate in cold water slowly when heated rapidly drops lemon-yellow precipitate salt Hg2 (OH) NO3.
Can be obtained by exchange reactions of the metal mercury or the action of nitric acid and not heated above 45 ° C.