H C Starck Yellow Tungsten Oxide

Yellow Tungsten Oxide is a yellow powder, sometimes with a touch of green, for coating applications with electroluminescence and for the production of tungsten metal powders used in hardmetals, lamp wires or heating wires.

Labeling Claims: High Purity

Features: High Reactivity

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Labeling Claims
Base Chemicals Features

Applications & Uses

Properties

Physical Form
Chemical Properties
ValueUnitsTest Method / Conditions
Aluminium Contentmax. 5ppm-
Arsenic Contentmax. 4ppm-
Boron Contentmax. 3ppm-
Carbon Contentmax. 30ppm-
Chloride Contentmax. 10ppm-
Fluorine Contentmax. 10ppm-
Iron Contentmax. 5ppm-
Molybdenum Contentmax. 10ppm-
Sodium Contentmax. 5ppm-
Phosphorus Contentmax. 10ppm-
Sulfur Contentmax. 10ppm-
Silicon Contentmax. 15ppm-
Vanadium Contentmax. 5ppm-
WO₃ (Calculated)²min. 99.7%-
Physical Properties
ValueUnitsTest Method / Conditions
Apparent Density (Standard Grade)35 - 55g/inch³-
Apparent Density (Ultrafine Grade)15 - 25g/inch³-
Fisher Number (Standard Grade)15 - 40μm-
Fisher Number (Ultrafine Grade)max. 1.2μm-
Standard Grade Sieve Analysis (+250 μm)max. 1%-
Ultrafine Grade Sieve Analysis (+250 μm)max. 1%-
Notes
  • 2 - Calculated as 100% -  Loss on ignition (750°C/1.5h).

Regulatory & Compliance

Certifications & Compliance
Reach Registration

REACh Registration acc. REGULATION (EC) No 1907/2006 dated December 18, 2006
H.C. Starck is taking all necessary actions under REACh in order to continue the supply of its products. All components of the HCST products are registered, pre-registered or exempted from registration.

Packaging & Availability

Packaging Type
Packaging
  • Standard Grade: 1800 kg in FIBC (Big Bag) with liner.
  • Ultrafine Grade: 100 kg in 60 L steel drum with polyethylene bag.

Storage & Handling

Storage and Handling

The user must observe all the relevant safety regulations in force in the country of use. Store in a closed container.