As4 Ta5

semiconductor

· As4 Ta5

As₄Ta₅ is an intermetallic compound combining arsenic and tantalum, representing a rare earth or refractory metal system likely explored for specialized semiconductor or high-temperature applications. This material appears to be primarily a research or emerging compound rather than a widely commercialized engineering material; its development is driven by potential applications requiring tantalum's refractory properties combined with arsenic's semiconducting characteristics. Engineers would consider this material only in advanced research contexts or niche high-temperature electronics where conventional semiconductors or refractory metals prove insufficient.

High-temperature semiconductor researchRefractory metal systemsIntermetallic compoundsExperimental electronicsAdvanced materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000800	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4810	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.

As4 Ta5

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control

Quality & Standards