MERCURY(II) IODIDE
- CAS No.
- 7774-29-0
- Chemical Name:
- MERCURY(II) IODIDE
- Synonyms
- HgI2;diiodomercury;MERCURIC IODIDE;VALSER'S REAGENT;mercurybiniodide;Mercury biniodide;redmercuriciodide;Red mercury iodide;MERCURY(II) IODIDE;MercuricIodideRedGr
- CBNumber:
- CB2469935
- Molecular Formula:
- HgI2
- Molecular Weight:
- 454.4
- MOL File:
- 7774-29-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/3/14 15:18:26
| Melting point | 259 °C(lit.) |
|---|---|
| Boiling point | 354 °C(lit.) |
| Density | 6.36 |
| vapor pressure | 0.006 hPa (80 °C) |
| Flash point | 350°C subl. |
| storage temp. | Store at RT. |
| solubility | potassium iodide solution: passes test |
| form | beads |
| Specific Gravity | 6.271 |
| color | White |
| Odor | Odorless |
| PH | 6-7 (50g/l, H2O, 20℃)(slurry) |
| Water Solubility | Insoluble inwater. Slightly soluble in alcohol, ether, acetone, chloroform, ethyl acetate, olive oil and castor oil. |
| Sensitive | Light Sensitive |
| Merck | 14,5879 |
| Solubility Product Constant (Ksp) | pKsp: 28.54 |
| Exposure limits |
ACGIH: TWA 0.025 mg/m3; TWA 0.01 ppm (Skin) NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 |
| Stability | Stable. Incompatible with strong oxidizing agents, potassium, sodium, interhalogens. Light-sensitive. |
| CAS DataBase Reference | 7774-29-0(CAS DataBase Reference) |
| EPA Substance Registry System | Mercuric iodide (7774-29-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H300+H310+H330-H373-H410 | |||||||||
| Precautionary statements | P262-P273-P280-P301+P310+P330-P302+P352+P310-P304+P340+P310 | |||||||||
| Hazard Codes | T+,N | |||||||||
| Risk Statements | 26/27/28-33-50/53 | |||||||||
| Safety Statements | 13-28-45-60-61 | |||||||||
| RIDADR | UN 2025 6.1/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | OW5250000 | |||||||||
| F | 8 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 28521000 | |||||||||
| Toxicity | LD50 orally in Rabbit: 18 mg/kg LD50 dermal Rat 75 mg/kg | |||||||||
| NFPA 704 |
|
MERCURY(II) IODIDE price More Price(21)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 83379 | Mercury(II) iodide red puriss. p.a., ACS reagent, red, ≥99.0% (RT) | 7774-29-0 | 10G | ₹2370.68 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 221090 | Mercury(II) iodide ACS reagent, ≥99.0% | 7774-29-0 | 25G | ₹5315.08 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 83379 | Mercury(II) iodide red puriss. p.a., ACS reagent, red, ≥99.0% (RT) | 7774-29-0 | 50G | ₹5964.58 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 221090 | Mercury(II) iodide ACS reagent, ≥99.0% | 7774-29-0 | 100G | ₹7880.6 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 221090 | Mercury(II) iodide ACS reagent, ≥99.0% | 7774-29-0 | 500G | ₹30071.85 | 2022-06-14 | Buy |
MERCURY(II) IODIDE Chemical Properties,Uses,Production
Chemical Properties
Red Solid
Uses
Mercury(II) iodide is is used for preparation of Nessler's reagent, used for detection of presence of ammonia. It is a semiconductor material, used in some x-ray and gamma ray detection and imaging devices operating at room temperatures. In veterinary medicine, it is used in blister ointments in exostoses, bursal enlargement, etc.
General Description
A scarlet-red odorless tasteless powder. Sensitive to light. Insoluble in water and sinks in water. At elevated temperatures turns yellow but turns back to red upon cooling. Poison.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
MERCURY(II) IODIDE is a mild reducing agent. Reacts with sodium azide to form mercury(II) azide, which is shock, friction, and heat sensitive. Incompatible with acetylene, ammonia, chlorine dioxide, azides, chlorine trifluoride, calcium (because of amalgam formation), sodium carbide, lithium, rubidium, copper .
Hazard
Highly toxic by ingestion, inhalation, and skin absorption; strong irritant.
Health Hazard
All forms of exposure to MERCURY(II) IODIDE are hazardous. Acute systemic mercurialism may be fatal within a few minutes; death by uremic poisoning is usually delayed 5-12 days. Acute poisoning has resulted from inhaling dust concentrations of 1.2-8.5 mg/m 3 of air; symptoms include tightness and pain in chest, coughing, and difficulty in breathing. Ingestion causes necrosis, pain, vomiting, and severe purging. Contact with eyes causes ulceration of conjunctiv a and cornea. Contact with skin causes irritation and possible dermatitis; systemic poisoning can occur by absorption through skin.
Fire Hazard
Special Hazards of Combustion Products: Fumes from fire may contain toxic mercury vapor.
Safety Profile
A poison. When heated to decomposition it emits very toxic fumes of Hg and I-. See also MERCURY(I1) IODIDE.
Potential Exposure
Mercuric iodide is used in medicine and in analytical chemistry.
Purification Methods
Crystallise it from MeOH or EtOH and wash it repeatedly with distilled water (solubility is 0.006% at ~25o). It has also been mixed thoroughly with excess 0.001M iodine solution, filtered, washed with cold distilled water, rinsed with EtOH and Et2O, and dried in air. It changes colour reversibly to yellow at ~130o. [Friend Nature 109 341 1922.] POISONOUS.
Incompatibilities
Violent reaction with active metals; potassium, sodium, acids, chlorine trifluoride. Inorganic mercury compounds are incompatible with acetylene, ammonia, chlorine dioxide; azides, calcium (amalgam formation), sodium carbide, lithium, rubidium, copper. Mercury iodide is a mild reducing agent. Keep away from oxidizers. Reacts with sodium azide to form mercury(II) azide, which is shock-, friction-, and heat-sensitive. Incompatible with acetylene, ammonia, chlorine dioxide, azides, chlorine trifluoride, calcium (because of amalgam formation), sodium carbide, lithium, rubidium, copper (NIOSH, 1997)
MERCURY(II) IODIDE Preparation Products And Raw materials
Raw materials
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