Na20 Si4 As12 — Properties & Data | MatWorld

Na20 Si4 As12

ceramic

· Na20 Si4 As12

Na₂O·Si₄As₁₂ is an inorganic ceramic compound belonging to the arsenic-silicate glass family, combining sodium oxide, silicon, and arsenic in a defined stoichiometric composition. This material is primarily of research and specialized industrial interest rather than commodity use, typically investigated for optical, electronic, or radiation-shielding applications where the arsenic content provides unique physical properties. The sodium-silicate backbone provides glass-forming characteristics, while arsenic incorporation is valued in niche applications requiring specific refractive indices, infrared transmission, or nuclear/gamma-ray attenuation—though handling and environmental considerations limit broad commercial adoption.

infrared optics and windowsnuclear radiation shieldingspecialized glass ceramicsresearch and developmenthigh-energy physics instrumentationheavy-metal glass applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4740	eV/atom	DFT · OptB88vdW

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Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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.

Na20 Si4 As12

Other Properties

Regulatory Screening

Environmental