Mercury(I) nitrate dihydrate
Mercury(I) nitrate dihydrate (CAS: 7782-86-7, Hg2(NO3)2 · 2H2O) is a chemical compound with a molecular weight of 561.22 g/mol. This white crystalline solid is a significant mercury salt, primarily utilised in analytical chemistry and as a reagent in various chemical syntheses. Its properties make it valuable for specific laboratory applications and research within inorganic chemistry.
- IUPAC
- Mercurous nitrate dihydrate

Analytical Reagent
Used in analytical chemistry for specific tests and quantitative determinations where mercury ions are required. Its reactivity allows for participation in complexometric titrations and precipitation reactions.
Chemical Synthesis
Serves as a precursor or reactant in the synthesis of other mercury compounds and organometallic reagents. It is employed in laboratory-scale preparation of specialised inorganic materials.
Catalysis Research
Investigated for potential catalytic properties in specific organic transformations. Its role as a mercury salt may offer unique pathways in certain catalysed reactions.
| Molecular weight | 561.22 |
|---|---|
| Linear formula | Hg2(NO3)2 · 2H2O |
| Assay | ≥97% |
| Grade | reagent grade |
| Density | 4.78 g/mL at 25 °C(lit.) |



Hazard statements
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H330Fatal if inhaled
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P264Wash thoroughly after handling
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1627 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-33-50/53 |
| Safety statements (S) | 13-28-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Mercury(I) nitrate dihydrate used for?
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Mercury(I) nitrate dihydrate is primarily used as an analytical reagent and in chemical synthesis, including research into catalytic applications within inorganic chemistry.
What is the CAS number and formula for Mercury(I) nitrate dihydrate?
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The CAS number is 7782-86-7 and the chemical formula is Hg2(NO3)2 · 2H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Mercury(I) nitrate dihydrate in reagent grade with an assay of ≥97%. We do not represent this product as USP, BP, or EP grade.
How should Mercury(I) nitrate dihydrate be handled safely?
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Mercury(I) nitrate dihydrate is a highly toxic substance (Danger: H300-H310-H330-H373-H410). Handling requires extreme caution, including the use of appropriate personal protective equipment such as eyeshields, gloves, and a full-face particle respirator (type N100 US / P3 EN143). Avoid contact and inhalation.
Is Mercury(I) nitrate dihydrate a controlled substance?
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While not explicitly listed as a controlled substance in the provided data, Mercury(I) nitrate dihydrate is highly toxic and carries significant environmental hazards (WGK Germany: 3, UN 1627 6.1/PGII). Always comply with relevant national and international regulations for handling and disposal.
How is Mercury(I) nitrate dihydrate packed, shipped, and exported?
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Mercury(I) nitrate dihydrate is packed in compliance with safety regulations for hazardous materials, including UN 1627 classification. Tech Serve Solutions exports globally, adhering to all transport and customs requirements for toxic substances.
How can I request a sample or quote for Mercury(I) nitrate dihydrate?
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To request a sample or obtain a quote for Mercury(I) nitrate dihydrate, please contact our sales team through the website or by phone, providing your specific requirements.
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