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Mercury(I) chloride

Also known as: Calogreen, Calotab, Chlorure mercureux, Dichlordiquecksilber(Hg-Hg), Dichlorodimercury(Hg-Hg), Dimercury dichloride, EINECS 233-307-5, Hg2Cl2, MERCUROUS CHLORIDE, MERCURY CHLORIDE, MERCURY(I) CHLORIDE FOR ANALYSIS, MFCD00011043, Mercuric chloride, Mercurous chloride, Mercury(I) Chloride, Acs Min, Mercury(I) chloride, 99.999% trace Metals basis, Mercury(I) chloride, ACS reagent, Mercury, dichlorodi-, (Hg-Hg), calomel, chloruremercureux

Mercury(I) chloride (CAS 10112-91-1) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl2Hg2 and a molecular weight of 472.086 g/mol. Key properties include a melting point of 400 °C (subl.)(lit.) and a density of 7.15. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10112-91-1
Jingsj CID
J-1325668-1
Molecular Formula
Cl2Hg2
Molecular Weight
472.086 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026
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Physicochemical Properties

Melting Point400 °C (subl.)(lit.)
Density7.15
Exact Mass473.878906
LogP1.37400

GHS Safety & Compliance

Irritant / Health Hazard / Environmental HazardSignal word: Danger
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Mercury(I) chloride?

The CAS number of Mercury(I) chloride is 10112-91-1.

What are the molecular formula and molecular weight of Mercury(I) chloride?

Mercury(I) chloride has molecular formula Cl2Hg2 and molecular weight 472.086 g/mol.

Is Mercury(I) chloride hazardous?

Mercury(I) chloride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H315 — Causes skin irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Mercury(I) chloride (CAS 10112-91-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325668-1 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.