Identification | More | [Name]
MERCURIC NITRATE, MONOHYDRATE | [CAS]
7783-34-8 | [Synonyms]
MERCURIC NITRATE MERCURIC NITRATE HYDRATE MERCURIC NITRATE, MONOHYDRATE MERCURIC NITRATE N-HYDRATE MERCURY(+2)NITRATE N-HYDRATE MERCURY(II) NITRATE MERCURY(II) NITRATE 1-HYDRATE MERCURY(II) NITRATE HYDRATE MERCURY (II) NITRATE, HYDROUS MERCURY(II) NITRATE MONOHYDRATE MERCURY(II) NITRATE N-HYDRATE MERCURY(II) NITRATE MONOHYDRATE, 98+%, A .C.S. REAGENT MERCURY(II) NITRATE MONOHYDRATE, REAGENT PLUS, 99.99+% MERCURY(II) NITRATE MONOHYDRATE 98+% & MERCURY(II) NITRATE, VOLUMETRIC STANDARD , 0.01N SOLUTION IN WATER MERCURY(II) NITRATE, VOLUMETRIC STANDARD, 0.14N SOLUTION IN WATER MERCURY(II) NITRATE MONOHYDRATE GR ACS 99+% MERCURY(II) NITRATE DIHYRATE 97+% FOR ANALYTICAL PURPOSE MercuricNitrate(Hydrate)Gr MercuricNitrateExtraPure | [EINECS(EC#)]
233-152-3 | [Molecular Formula]
H2HgN2O7 | [MDL Number]
MFCD00149736 | [Molecular Weight]
342.62 | [MOL File]
7783-34-8.mol |
Chemical Properties | Back Directory | [Appearance]
Mercuric nitrate is a white to yellowish crystalline solid with an odor like nitric acid. Normally exists
as the hemihydrate or the dihydrate | [Melting point ]
79 °C(lit.) | [density ]
1.025 g/mL at 25 °C
| [vapor density ]
11 (vs air) | [storage temp. ]
Store at RT. | [solubility ]
soluble in H2O, dilute acid solutions | [form ]
Liquid | [color ]
White to off-white | [Specific Gravity]
4.39 | [Odor]
Slight nitric acid odor | [Water Solubility ]
Soluble in water. | [Sensitive ]
Hygroscopic | [Merck ]
14,5880 | [Exposure limits]
ACGIH: TWA 0.025 mg/m3 (Skin) NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 | [CAS DataBase Reference]
7783-34-8(CAS DataBase Reference) |
Safety Data | Back Directory | [Hazard Codes ]
T+,N,T,O,Xn | [Risk Statements ]
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed . R33:Danger of cumulative effects. R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . R34:Causes burns. R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . R8:Contact with combustible material may cause fire. R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S13:Keep away from food, drink and animal feeding stuffs . S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S60:This material and/or its container must be disposed of as hazardous waste . S61:Avoid release to the environment. Refer to special instructions safety data sheet . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S17:Keep away from combustible material . S36/37:Wear suitable protective clothing and gloves . | [RIDADR ]
UN 1625 6.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
OW8225000
| [F ]
3-8 | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
28521000 |
Hazard Information | Back Directory | [Potential Exposure]
Mercuric nitrate is used in making
other chemicals; in felt manufacture and in making mercury
fulminate | [First aid]
Move victim to fresh air. Call 911 or emergency
medical service. Give artificial respiration if victim is not
breathing. Do not use mouth-to-mouth method if victim
ingested or inhaled the substance; give artificia respiration with the aid of a pocket mask equipped with a
one-way valve or other proper respiratory medical device.
Administer oxygen if breathing is difficult. Remove and
isolate contaminated clothing and shoes. In case of contact
with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact,
avoid spreading material on unaffected skin. Keep victim
warm and quiet. Effects of exposure (inhalation, ingestion,
or skin contact) to substance may be delayed. Ensure that
medical personnel are aware of the material(s) involved
and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing
overexposure, as pulmonary edema may be delayed.
As first aid for pulmonary edema, a doctor or authorized
paramedic may consider administering a drug or other
inhalation therapy. Antidotes and Special Procedures for
authorized medical personnel: The drug NAP has been used
to treat mercury poisoning, with mixed success. | [Shipping]
UN1625 Mercuric nitrate, Hazard Class: 6.1;
Labels: 6.1-Poisonous materials. | [Incompatibilities]
A strong oxidizer. Reacts violently with
combustibles, petroleum hydrocarbons; reducing agents;
aldehydes, ammonia, ketones, phosphorus. Reacts with
acetylene, alcohol, phosphine, and sulfur to form shocksensitive compounds. Aqueous solution attacks most
metals. Vigorous and dangerous reaction with petroleum
hydrocarbons. Incompatible with organic materials;
acetylene, ethanol, phosphine, sulfur, hypophosphoric acid.
Inorganic mercury compounds are incompatible with acetylene, ammonia, chlorine dioxide; azides, calcium (amalgam
formation), sodium carbide; lithium, rubidium, copper.
Decomposes in heat or on exposure to light, producing
toxic fumes (mercury, nitrogen oxides) | [Purification Methods]
Its solubility in H2O containing 1% HNO3 is 7.7%. Recrystallise it from a warm saturated solution of dilute HNO3 and cool to room temperature slowly to give elongated prisms. Rapid cooling gives plates. The colourless crystals should be stored in the dark. POISONOUS. [Grdenic J Chem Soc 1312 1956.] |
Questions And Answer | Back Directory | [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]
Mercury(II) nitrate is used in the preparation of other mercury compounds; in organic synthesis; and as an analytical standard for mercury.
| [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 + ½ 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+ + 2SCN¯ → Hg(SCN)2
Addition of a small amount of alkali iodide to mercury(II) nitrate solution precipitates mercury(II) iodide:
Hg2+ + 2I¯ → HgI2
Similarly, mercury(II) cyanide precipitates upon the addition of potassium cyanide to mercury(II) nitrate solution:
Hg2+ + 2CN¯ → 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.
|
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