Er4FeS7

metal

· JVASP-139945· Er4FeS7

Er4FeS7 is an ternary intermetallic compound combining erbium, iron, and sulfur, belonging to the rare-earth metal sulfide family. This is a research-phase material studied primarily for its potential electronic, magnetic, and thermoelectric properties rather than as an established commercial alloy. Engineers would consider this compound in exploratory work on functional materials where rare-earth chemistry offers advantages in energy conversion, magnetic applications, or specialized semiconductors.

rare-earth intermetallics researchthermoelectric materials developmentmagnetic compound studiesfunctional materials prototypingmaterials science experimentation

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2376	lb/in³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.1050	eV	—
Magnetic Moment(μB)	0.000	µB	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1366	eV/atom	—
Formation Energy(ΔHf)	-1.824	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

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.

Er4FeS7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control