H2W2O7
ceramic· JVASP-54732· H2W2O7
H₂W₂O₇ is a tungsten oxide hydrate ceramic belonging to the family of polytungstates, compounds formed from tungsten and oxygen with water of crystallization. This material is primarily of research and industrial interest in catalysis, particularly for oxidation reactions and desulfurization processes, where tungsten oxides serve as active or support phases. Tungsten oxide ceramics are valued in applications requiring thermal stability and catalytic activity, making them relevant alternatives to other transition metal oxides in chemical processing and environmental remediation where their unique redox properties provide advantages over conventional catalysts.
catalytic supportsoxidation catalysishydrodesulfurizationchemical processingresearch/specialty ceramicsenvironmental remediation
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 5.827 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.605 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -392.9 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.2658 | eV/atom | — | ||
Formation Energy(ΔHf) | -1.737 | 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.