K5As4

ceramic
· JVASP-52621· K5As4

K5As4 is an inorganic ceramic compound in the potassium-arsenic oxide system, likely a mixed-valence ceramic with potential applications in specialized industrial contexts. While not widely documented in mainstream engineering databases, this material represents a research-phase compound with properties suited to applications requiring moderate stiffness and thermal stability in chemically demanding environments. Engineers would consider K5As4 primarily in niche applications where arsenic-containing ceramics offer unique chemical resistance or functional properties not achievable with conventional oxides.

advanced refractory materialsspecialty chemical processingresearch and developmenthigh-temperature corrosion resistancesemiconductor processing equipment

Compliance & Regulations

?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
2,654.2
ksi
Poisson's Ratio(ν)
0.2900
-
Shear Modulus(G)
1,389.5
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.1014
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.07850
range 0.000–0.1570median of 2 measurements
eV
Magnetic Moment(μB)
0.000
µB
Seebeck Coefficient(S)
4.893
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.06310
eV/atom
Formation Energy(ΔHf)
-0.4838
eV/atom
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

Quality & Standards

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.
K5As4 — Properties & Data | MatWorld