Each claim states how it is known and cites its evidence.
EstablishedMIN V2O5 99.6 wt%; MAX V2O4 1; MAX Na 0.02; MAX K 0.02; MAX Fe 0.03; MAX particle size 1 mm. Other elements on request.
Reported for this deposit
The chemically pure grade requires vanadium, expressed as V2O5, at 99.6 weight per cent or more, and caps V2O4 at 1 per cent, sodium and potassium at 0.02 each, and iron at 0.03, with particles below 1 millimetre. Every figure is a limit the producer states with a comparator, not a typical value.
- assertion basis: SOURCE_REPORTED
Evidence support: Supported by the cited evidence · one source
Evidence: GfE Metalle und Materialien GmbH (AMG Titanium), Höfener Str. 45, 90431 Nürnberg, Germany 2026 · Peer-reviewed
EstablishedSite attribution: NOT ESTABLISHED. Place appearing on the product literature: Höfener Str. 45, 90431 Nürnberg — a contact address. Strongest independent site statement found: a regulator's record of vanadium-extraction plants at that street, dated 19 May 2023, naming no product and no grade. Channels searched on 17 September 2026: producer product pages and a public German environmental-procedure register. Not recovered from those channels on that date; this is not a statement that no such document exists.
Reported for this deposit
No source read places this graded article at a production site. The producer's data sheet prints Höfener Str. 45, 90431 Nürnberg in a contact block, beside a telephone number, a named contact person and a website, and states nothing about where the article is made. The producer's own vanadium chemicals page names no production location for any of its vanadium products and refers only to «our production». A 2023 regulator record separately places plants for the extraction of vanadium at that same street, which establishes an activity at an installation and not the manufacture of this article there. The two facts are not joined by any document read, and joining them would be this corpus's inference rather than a source's statement.
- assertion basis: SOURCE_REPORTED
Evidence support: Supported by the cited evidence · 2 sources, multiple sources, independence unknown
Evidence: GfE Metalle und Materialien GmbH (AMG Titanium) 2026 · Institutional reference; Stadt Nürnberg, Umweltamt — published in the UVP-Portal (UVP-Verbund der Länder und des Bundes) 2023 · Primary authority
EstablishedIssuer class: PRODUCER. Issuer: GfE Metalle und Materialien GmbH (AMG Titanium), Nürnberg. Three documents, three article numbers, three document versions, each dated only to a month.
Reported for this deposit
These are a producer's own product grades, issued by the company that makes the material. They are first-party specification evidence and they are not an industry standard: nobody outside the producer sets them, and no standards body is named on any of the three documents.
- assertion basis: SOURCE_REPORTED
Evidence support: Supported by the cited evidence · 3 sources, multiple sources, independence unknown
Evidence: GfE Metalle und Materialien GmbH (AMG Titanium), Höfener Str. 45, 90431 Nürnberg, Germany 2026 · Peer-reviewed; GfE Metalle und Materialien GmbH (AMG Titanium), Höfener Str. 45, 90431 Nürnberg, Germany 2026 · Peer-reviewed; GfE Metalle und Materialien GmbH (AMG Titanium), Höfener Str. 45, 90431 Nürnberg, Germany 2026 · Peer-reviewed