7783-34-8 Usage
Chemical Properties
The monohydrate is a white crystalline or powdery substance; density 4.3g/cm3; decomposes on heating; soluble in water and nitric acid; insoluble in alcohol.
It is stable and hygroscopic. Mercuric nitrate is incompatible with mercuric nitrate in contact with organic materials, powdered metals, petroleum hydrocarbons, hypophosphoric acid, unsaturates, and aromatics, which react violently.
Uses
Different sources of media describe the Uses of 7783-34-8 differently. You can refer to the following data:
1. Mercury(II) nitrate is used in the preparation of other mercury compounds; in organic synthesis; and as an analytical standard for mercury.
2. Mercury(II) nitrate is used as an oxidizing agent involved in organic synthesis. Its reaction with acetone yielded an organometallic compound containing mercury. In addition, it serves as a nitrification agent and analytical reagents used in the laboratory. It is involved in the preparation of mercury fulminate.
Preparation
Mercury(II) nitrate is prepared by dissolving mercury in excess hot concentrated nitric acid. Upon evaporation of the solution, large colorless deliquescent crystals of monohydrate, Hg(NO3)2?H2O, form.
It also is obtained by boiling a solution of mercury(I) nitrate or by the action of light on mercury(I) nitrate:
Hg2(NO3)2 → Hg + 2HgNO3
Reactions
Gentle heating of mercury(II) nitrate gives mercury(II) oxide evolving nitrogen and oxygen:
Hg(NO3)2 → HgO + 2NO2 + ? O2
However, on strong heating, mercury nitrate decomposes to mercury metal:
Hg(NO3)2 → Hg + 2NO2 + O2
When excess alkali hydroxide is added to a solution of mercury(II) nitrate, a yellow precipitate of HgO is obtained.
Addition of potassium thiocyanate solution forms a white precipitate of mercury(II) thiocyanate:
Hg2+ + 2SCNˉ → Hg(SCN)2
Addition of a small amount of alkali iodide to mercury(II) nitrate solution precipitates mercury(II) iodide:
Hg2+ + 2Iˉ → HgI2
Similarly, mercury(II) cyanide precipitates upon the addition of potassium cyanide to mercury(II) nitrate solution:
Hg2+ + 2CNˉ → Hg(CN)2
Toxicity
Mercury(II) nitrate is highly toxic by ingestion and possibly other routes of exposure. The LD50 oral for the dihydrate in mouse is 25 mg/kg.
Check Digit Verification of cas no
The CAS Registry Mumber 7783-34-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7783-34:
(6*7)+(5*7)+(4*8)+(3*3)+(2*3)+(1*4)=128
128 % 10 = 8
So 7783-34-8 is a valid CAS Registry Number.
InChI:InChI=1/Hg.2NO3.H2O/c;2*2-1(3)4;/h;;;1H2/q+2;2*-1;
