Substance description/characteristics
1. Name and other identifiers of the substance:
The substance Flue dust, zinc-refining is a UVCB (origin: inorganic).
Public name: Waelz oxide
Type of joint submission: Annex X registration.
It is the registrant’s responsibility to register under the REACH Annex relevant to its company and local authorities (cf. Annex 17/18 isolated or transported intermediates).
| EC number: | 273-760-6 |
| EC name: | Flue dust, zinc-refining |
| CAS number (EC inventory): | 69012-63-1 |
| IUPAC name: | Flue dust, zinc-refining |
| Description: | Zinc bearing materials and reducing agents (i. e. coke) are blended, wet and fed to a furnace at high temperature causing fuming of zinc Air oxidizes the zinc in the gas-phase to solid zinc oxide and entrains it together with some particles from the feed; the fume is collected in the gas-cleaning system OR Material is produced in a blast furnace where there is no oxidising atmosphere. Chemical reaction of the zinc takes place in the wet gas cleaning system (with water) Flue dust is collected in bag-house filters or wet gas cleaning system. It is a zinc oxide rich material containing some impurities and halogens. |
| Molecular formula: | n.a. |
| Molecular weight range: | n.a. |
2. Composition of the substance
Flue dust, zinc refining has 2 composition ranges, one of which has very low cadmium and nickel. It will thus have also 2 classifications
Please download composition information from document at the bottom of the page.
3. Classification (revised 2012)
Please download classification information from document at the bottom of the page.