Merck

ATSDR evaluation of potential for human exposure to tungsten.

Toxicology and industrial health (2008-04-05)
L Samuel Keith, David W Wohlers, Daphne B Moffett, Zemoria A Rosemond
ABSTRACT

As part of its mandate, the Agency for Toxic Substances and Disease Registry prepares toxicological profiles on hazardous chemicals found at Comprehensive Environmental Response, Compensation and Liability Act, National Priorities List sites that have the greatest public health impact. These profiles comprehensively summarize toxicological and environmental information. This article constitutes the release of portions of the Toxicological Profile for Tungsten. The primary purpose of this article is to provide interested individuals with environmental information on tungsten that includes production data, environmental fate, potential for human exposure, analytical methods and a listing of regulations and advisories.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
钨, wire, diam. 0.25 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钨, foil, thickness 0.05 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钨, wire, diam. 0.5 mm, ≥99.9% trace metals basis
Sigma-Aldrich
钨, wire, diam. 1.0 mm, 99.99% trace metals basis
Sigma-Aldrich
钨, foil, thickness 0.25 mm, ≥99.9% trace metals basis
钨, mesh, 50x50mm, nominal aperture 0.2mm, wire diameter 0.05mm, 100 wires/inch, open area 64%, plain weave mesh, 99.95%
Sigma-Aldrich
钨, foil, thickness 0.127 mm, ≥99.9% trace metals basis
钨, wire reel, 5m, diameter 0.005mm, gold plated, 99.95%
Sigma-Aldrich
钨, foil, thickness 0.5 mm, ≥99.9% trace metals basis
钨, wire reel, 25m, diameter 0.05mm, clean, 99.95%
钨, foil, light tested, 100x100mm, thickness 0.05mm, as rolled, 99.95%
钨, lump, 50g, max. size 5mm
钨, wire, straight, 300mm, diameter 0.10mm, 99.9+%
钨, rod, 100mm, diameter 1.6mm, centerless ground, 99.95%
钨, wire reel, 10m, diameter 0.5mm, clean, 99.95%
钨, wire, straight, 1000mm, diameter 0.30mm, 99.9+%
钨, wire, straight, 300mm, diameter 0.25mm, 99.9+%
钨, wire reel, 25m, diameter 0.15mm, clean, 99.95%
钨, wire reel, 25m, diameter 0.1mm, clean, 99.95%
钨, insulated wire, 1m, conductor diameter 0.075mm, insulation thickness 0.02mm, PTFE (polytetrafluoroethylene) insulation, 99.9%
钨, foil, 100x100mm, thickness 0.125mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 0.15mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 0.1mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 0.2mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 0.3mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 0.5mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 1.0mm, as rolled, 99.95%
钨, foil, 100x100mm, thickness 2.0mm, as rolled, 99.95%
钨, foil, 150x150mm, thickness 0.125mm, as rolled, 99.95%
钨, foil, 150x150mm, thickness 0.15mm, as rolled, 99.95%