Ho4 H4 O8

ceramic

· Ho4 H4 O8

Ho4H4O8 is a rare-earth ceramic compound containing holmium, hydrogen, and oxygen—a hydroxide or oxyhydroxide phase likely synthesized for research rather than established industrial production. This material belongs to the family of rare-earth hydroxides and related ceramics, which are of scientific interest for their potential in optical, magnetic, and catalytic applications, though specific engineering use cases for this particular composition are not established in mainstream industry. Engineers would encounter this compound primarily in advanced materials research contexts rather than conventional engineering projects.

rare-earth ceramic researchoptical material developmentmagnetic compound studiescatalytic substrate investigationhigh-temperature ceramic testing

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	99.44	GPa	—
Shear Modulus(G)	44.99	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	4.832	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-2.805	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.

Ho4 H4 O8

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental