Reference electrodes
The active material of saturated calomel reference electrodes for pH and potential measurement.
Mercury Compounds · Extra Pure
Calomel
Also known as Mercurous chloride and Mercury(I) chloride
CAS10112-91-1
FormulaHg₂Cl₂
MW472.09
PubChem24956
Mercury(I) chloride with a minimum 99.6% assay and no detectable mercuric salt, for calomel electrodes and research.
Assay≥ 99.6%
GradeExtra Pure
MW472.09
ISO 9001:2015 certified supplierTested at NABL-accredited laboratories
Overview
About Calomel
Calomel is mercury(I) chloride, a dense white powder that is practically insoluble in water.
Its best-known use is in the saturated calomel electrode, a stable reference electrode for electrochemical measurements. We test every batch for mercuric salt, which must be absent.
IdentityHg₂Cl₂
- CAS number
- 10112-91-1
- Molecular formula
- Hg₂Cl₂
- Molecular weight
- 472.09
- PubChem CID
- 24956
- Appearance
- White to off-white 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) | White to off-white |
| 02 | Appearance (form) | Crystalline powder |
| 03 | Solubility | Insoluble in nitric acid |
| 04 | Non-volatile matter | Not more than 0.1% |
| 05 | Mercuric salt | Absent |
| 06 | Assay | Not less than 99.6% |
Need a tighter limit or an extra test? Send us your specification with your enquiry.
Specification sheet (PDF)
Applications
Where Calomel is used
Research
A reagent in inorganic and electrochemical research.
Ceramics & pyrotechnics
Used in specialist ceramic and pyrotechnic formulations.
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.
250 gSealed bottle
500 gSealed bottle
1 kgSealed bottle
50 kgBulk pack
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?
250 g, 500 g, 1 kg and 50 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 Calomel
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