Nessler's reagent
The basis of Nessler's reagent for detecting and measuring ammonia in water and laboratory samples.
Powder
Mercury Compounds · Extra Pure
Mercuric Iodide
Also known as Mercury(II) iodide and Red mercuric iodide
CAS7774-29-0
FormulaHgI₂
MW454.40
PubChem24485
Red mercury(II) iodide with a minimum 99% assay, for Nessler's reagent and analytical work.
Assay≥ 99%
GradeExtra Pure
MW454.40
ISO 9001:2015 certified supplierTested at NABL-accredited laboratories
Overview
About Mercuric Iodide
Mercuric Iodide is a bright red crystalline powder, almost insoluble in water but soluble in potassium iodide solution, where it forms the tetraiodomercurate ion.
That solution is Nessler's reagent, the classic test for ammonia. We test every batch for mercurous mercury, soluble mercury salts and chloride.
IdentityHgI₂
- CAS number
- 7774-29-0
- Molecular formula
- HgI₂
- Molecular weight
- 454.40
- PubChem CID
- 24485
- Appearance
- Red crystalline powder
- Grade
- Extra Pure
Technical specification
Specification, Extra Pure grade
Every batch is released against these limits. Ask for the specification sheet with your quote.
| # | Test | Specification |
|---|---|---|
| 01 | Appearance (colour) | Red |
| 02 | Appearance (form) | Crystalline powder |
| 03 | Mercurous mercury | Not more than 0.1% |
| 04 | Soluble mercury salts | Not more than 0.05% |
| 05 | Chloride (Cl) | Not more than 0.15% |
| 06 | Potassium (K) | Not more than 0.01% |
| 07 | Sodium (Na) | Not more than 0.01% |
| 08 | Solubility in KI solution | Passes test |
| 09 | Assay | Not less than 99% |
Need a tighter limit or an extra test? Send us your specification with your enquiry.
Specification sheet (PDF)
Applications
Where Mercuric Iodide is used
Analytical reagent
Used in classical tests for alkaloids and in qualitative inorganic analysis.
Detectors & research
Single crystals are studied for room-temperature X-ray and gamma-ray detectors.
Packing
Sealed, labelled and ready to ship
Every container carries the product name, batch number, dates and hazard labels. Other pack sizes are available on request.
50 gSealed bottle
100 gSealed bottle
500 gSealed bottle
1 kgSealed bottle
Storage & handling
A mercury compound: store securely and handle with care
- Toxic. Keep in the original, tightly closed container in a cool, dry, well-ventilated and locked store.
- Protect from light, and keep away from acids, ammonia and other incompatible materials.
- Avoid raising dust. Wear gloves, eye protection and suitable respiratory protection, and wash after handling.
- Collect spills and waste for disposal as hazardous waste, following local rules. Shipped as dangerous goods.
Read the MSDS for full hazard, first-aid and disposal information.
Documents
Specification and safety documents
Ask for any of these and we will email them with your quote.
Questions
Frequently asked
Which pack sizes can I order?
50 g, 100 g, 500 g and 1 kg packs as standard. Tell us if you need a different size or a repeat schedule.
Can you supply against our own specification?
Send your specification with your enquiry. Our team will confirm which limits we can meet before you order.
Do you ship outside India?
Yes. We hold an Import Export Code and supply both domestic and export buyers. Mention the destination country in your enquiry so we can quote the right packing and documents.
Related products
Other mercury compounds
Enquire
Get a quote for Mercuric Iodide
Tell us the quantity, pack size and destination. We will confirm price, availability and lead time, and send the documents you need.
Phone & WhatsApp+91 77530 58907
Emailankur.agrawal@spacorporation.in