Hg2Cl

ceramic
· JVASP-116166· Hg2Cl

Hg₂Cl (mercury(I) chloride, also known as calomel) is an inorganic ceramic compound composed of mercury and chlorine, historically significant in electrochemistry and analytical chemistry. While largely phased out from mainstream industrial use due to toxicity and environmental concerns, it remains important in specialized electrochemical applications—particularly as a reference electrode in potentiometric measurements and corrosion testing—where its stable, well-defined electrochemical potential is valuable. Engineers encounter this material primarily in legacy instrumentation, academic research, and niche electroanalytical contexts where its unique electrochemical properties outweigh substitution with modern alternatives.

electrochemical reference electrodespotentiometric sensorscorrosion monitoringanalytical chemistry instrumentationelectroanalytical measurementslegacy environmental testing

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
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ksi——
Poisson's Ratio(ν)
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-——
Shear Modulus(G)
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ksi——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
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lb/in³——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
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eV——
Magnetic Moment(μB)
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µB——
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
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eV/atom——
Formation Energy(ΔHf)
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eV/atom——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.