Red mercury iodide
Mercury iodide
CAS: 7774-29-0
Molecular Formula: HgI2
Red mercury iodide - Names and Identifiers
| Name | Mercury iodide |
| Synonyms | Mercury iodide MERCURIC IODIDE VALSER'S REAGENT MERCURY(II) IODIDE Red mercury iodide MERCURIC IODIDE RED MERCURIC IODIDE pure Mercury(II) diiodide MERCURY(+2)IODIDE, RED MERCURY(II) IODIDE RED alpha-mercury(ii)iodide MERCURY (II) BINIODIDE, RED MERCURIC IODIDE extrapure AR Mercury (II) Iodide, red powder MERCURIC IODIDE, RED, REAGENT (ACS)MERCURIC IODIDE, RED, REAGENT (ACS)MERCURIC IODIDE, RED, REAGENT (ACS)MERCURIC IODIDE, RED, REAGENT (ACS) |
| CAS | 7774-29-0 |
| EINECS | 231-873-8 |
| InChI | InChI=1/C9H12N2O.Hg.2HI/c1-11(2)9(12)10-8-6-4-3-5-7-8;;;/h3-7H,1-2H3,(H,10,12);;2*1H/q;+2;;/p-2 |
Red mercury iodide - Physico-chemical Properties
| Molecular Formula | HgI2 |
| Molar Mass | 454.4 |
| Density | 6.36 |
| Melting Point | 259°C(lit.) |
| Boling Point | 354°C(lit.) |
| Flash Point | 350°C subl. |
| Water Solubility | Insoluble inwater. Slightly soluble in alcohol, ether, acetone, chloroform, ethyl acetate, olive oil and castor oil. |
| Solubility | potassium iodide solution: passes test |
| Vapor Presure | 0.006 hPa (80 °C) |
| Appearance | beads |
| Specific Gravity | 6.271 |
| Color | White |
| Odor | Odorless |
| Exposure Limit | 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 |
| Solubility Product Constant(Ksp) | pKsp: 28.54 |
| Merck | 14,5879 |
| PH | 6-7 (50g/l, H2O, 20℃)(slurry) |
| Storage Condition | Store at RT. |
| Stability | Stable. Incompatible with strong oxidizing agents, potassium, sodium, interhalogens. Light-sensitive. |
| Sensitive | Light Sensitive |
| Physical and Chemical Properties | Scarlet odorless, almost tasteless, heavy powder. Sensitive to light. The relative density was 6.28. Melting point 259 °c. Boiling point 354 °c. Heat of vaporization: 59.2 Kj/mol; Heat of fusion: 18.90 kJ/mol; Red to yellow at 130 °c. Vapor pressure 133.3 (157.5 C). In the case of three chlorine fluoride, metal potassium, metal sodium reaction. Very slightly soluble in water. Soluble in alkali metal iodide, sodium thiosulfate solution. Soluble in ether, acetone, chloroform, ethyl acetate. |
| Use | For medicine and the preparation of the reagent and trace analysis of palladium and ammonia |
Red mercury iodide - Risk and Safety
| Risk Codes | 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. |
| Safety Description | S13 - Keep away from food, drink and animal foodstuffs. S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2025 6.1/PG 2 |
| WGK Germany | 3 |
| RTECS | OW5250000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 28521000 |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orally in Rabbit: 18 mg/kg LD50 dermal Rat 75 mg/kg |
Red mercury iodide - Upstream Downstream Industry
| Raw Materials | Potassium iodide Mercury Nitric acid |
Red mercury iodide - Nature
Open Data Verified Data
Scarlet odorless, almost tasteless heavy powder. Sensitive to light. Relative density 6. 28 (25 ℃). Melting point 259 °c, boiling point 354 °c. Heat of vaporization: 59. 2kJ/mol; Heat of fusion: 18. 90kJ/mol; Red color turns yellow at 130 °c. Vapor pressure 133.3 (157.5 C). In the case of three chlorine fluoride, metal potassium, metal sodium reaction. Very soluble in water, soluble in alkali metal iodide, sodium thiosulfate solution. Soluble in ether, acetone, glycerol, chloroform, ethyl acetate.
Last Update：2025-06-10 22:55:16
Red mercury iodide - Preparation Method
Open Data Verified Data
double decomposition method t potassium iodide solution is added into the reactor, while stirring slowly adding mercuric chloride solution for double decomposition reaction, generate Mercury iodide and potassium chloride, after standing, filtering, washing with distilled water, after centrifugal separation and drying, the Mercury iodide product was prepared.
Last Update：2022-01-01 11:01:36
Red mercury iodide - Application
Open Data Verified Data
used medically as a preservative on sick skin Disinfection. Chemical reagents.
Last Update：2025-08-19 16:24:40
Red mercury iodide - Safety
Open Data Verified Data
It was packed in brown glass bottles with a net content of 0.5kg per bottle. Then concentrate the inner lining of the wooden box, and each box contains 10 bottles. It should be obvious on the package. "Toxic products" sign. Hazard code: toxic and hazardous products GB 6.1 class 61030. Highly toxic GA 58-93 81093 UN No. 2004; IMDG CODE (Volume 2, 6.1 Edition) class 2. Toxicity and protection: highly toxic. Rat oral LDs0 40mg/kg. Ingestion or inhalation of dust poisoning. See mercury nitrate for others.
Last Update：2022-01-01 11:01:37
Red mercury iodide - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| toxic | highly toxic. Rat oral LD50:40mg/kg. Ingestion or inhalation of dust poisoning. See mercury nitrate for others. |
| Use | medicine is used as a preservative, Disinfection for sick skin. Chemical reagents. used in the preparation of pharmaceuticals and naiel's reagent and The microanalysis of palladium and ammonia used as analytical reagent |
| production method | double decomposition method potassium iodide solution is added into the reactor, and mercury chloride solution is added slowly with stirring for double decomposition reaction, mercury iodide and potassium chloride are generated, and the mixture is allowed to stand, filtered, washed with distilled water, centrifuged and dried to obtain a finished Mercury iodide product. HgCl2 2KIHgI2 2KCl |
| category | toxic substances |
| toxicity grade | highly toxic |
| Acute toxicity | oral-rat LD50: 18 mg/kg; Oral-mouse LD50: 17 mg/kg |
| flammability hazard characteristics | non-combustible; Thermally decomposed toxic iodide and mercury vapor fumes; light decomposition |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from food additives |
| extinguishing agent | water, carbon dioxide, dry powder, sand |
| Occupational Standard | TLV-TWA: 0.1 mg (HG)/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:15
Supplier List
Spot supply
Product Name: Mercuric iodide Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Mercury iodide Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: Mercuric iodide Request for quotationCAS: 7774-29-0
Tel: 86-523-87558858,87612088
Email: 184089063@qq.com
yhj@joxbio.com
Mobile: 86-13615177555,15371578585,15370719785
QQ: 184089063
Wechat: JOXBIO
Spot supply
Product Name: MERCURY(II) IODIDE Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
Spot supply
Product Name: Mercuric iodide Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365
Wechat: 18916960931
Spot supply
Product Name: Mercury iodide Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922
Wechat: 18621343501
WhatsApp: +86-18621343501
Spot supply
Product Name: Mercuric iodide Request for quotationCAS: 7774-29-0
Tel: 86-523-87558858,87612088
Email: 184089063@qq.com
yhj@joxbio.com
Mobile: 86-13615177555,15371578585,15370719785
QQ: 184089063
Wechat: JOXBIO
Spot supply
Product Name: MERCURY(II) IODIDE Visit Supplier Webpage Request for quotationCAS: 7774-29-0
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
View History
Raw Materials for Red mercury iodide