Mercurous chloride, dihydrate, GR 99%+

Name: Mercurous chloride, dihydrate, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-014947

About Mercurous chloride, dihydrate, GR 99%+

Mercurous chloride, dihydrate is a refractory / heavy metal compound (AR grade) carrying the CAS registry number 10112-91-1, specified at ≥99% purity. Its molecular formula is Cl2Hg2 and its molecular weight is 472.09 g/mol. The IUPAC name is chloromercury. Alternative names: Mercury(I) chloride and Calomel.

The material typically appears as a white to off-white powder to crystalline powder. Key physical data: a melting point of 400 °C (subl.). Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for paints, coatings and inks and ceramics and glass. Typical end-use sectors are academic and industrial research.

We offer Mercurous chloride, dihydrate in 50 g, 100 g, 500 g and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Paints, coatings & inks
Ceramics & glass

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Mercurous chloride, dihydrate, GR 99%+
Catalogue No.	VQ-014947
CAS Number	10112-91-1
IUPAC name	chloromercury
Molecular formula	Cl₂Hg₂
Molecular weight	472.09 g/mol
Exact mass	471.8767
Grade	AR
Purity / assay	≥99%
HSN code	28273920
InChIKey	ZOMNIUBKTOKEHS-UHFFFAOYSA-L
SMILES	Cl[Hg].Cl[Hg]
PubChem CID	24956

Physical properties
Physical form	Powder
Appearance	White to off-white powder to crystalline powder
Melting point	400 °C (subl.)
H-bond donors / acceptors	0 / 0
TPSA	0 Å²
UN number	UN 2025
Synonyms	Mercury(I) chloride, Calomel, Mercurous chloride dihydrate, Dimercury dichloride, Chlorure mercureux, Mercury subchloride, Mercury chloride (Hg2Cl2), Mild mercury chloride, (dimercury) dichloride, Hg2Cl2, Quecksilber(I)-chlorid, dimercury(2+) chloride

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 10112-91-1

Synthesis

Mercurous chloride, dihydrate, 99%

CAS: 10112-91-1
Formula: Cl₂Hg₂
MW: 472.09 g/mol

VQ-014946

Frequently asked questions

What is the CAS number of Mercurous chloride, dihydrate, GR 99%+?

The CAS Registry Number of Mercurous chloride, dihydrate, GR 99%+ is 10112-91-1. It is also known as Mercury(I) chloride, Calomel, Mercurous chloride dihydrate.

What is the molecular formula and molecular weight of Mercurous chloride, dihydrate, GR 99%+?

Mercurous chloride, dihydrate, GR 99%+ has the molecular formula Cl2Hg2 and a molecular weight of 472.09 g/mol. Its IUPAC name is chloromercury.

Which grade and pack sizes of Mercurous chloride, dihydrate, GR 99%+ can I order?

We supply Mercurous chloride, dihydrate, GR 99%+ in AR (≥99%) grade, in 50 g, 100 g, 500 g, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Mercurous chloride, dihydrate, GR 99%+?

Yes. Every lot of Mercurous chloride, dihydrate, GR 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Mercurous chloride, dihydrate, GR 99%+ be shipped internationally?

Yes. Mercurous chloride, dihydrate, GR 99%+ is classified as hazardous (UN 2025), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.