Yahoo Poland Wyszukiwanie w Internecie

Search results

  1. Tungsten oxides are also used in making ceramic glazes. Chemical and tanning industries also make use of some tungsten salts. ... These wires are produced from the bulk tungsten and their morphology is controlled using the thermal oxidation process. These nanowires are used in gas sensors and as pH probes. They are a promising material in terms ...

  2. 27 wrz 2016 · This review discusses the potential health risks of tungsten exposure, alone or in combination with other metals, such as cobalt. It covers the sources, forms, and mechanisms of tungsten toxicity, as well as the gaps in knowledge and the need for further research.

  3. Leanderson and Sahle (1995) demonstrated that respirable tungsten oxide fibers, which were measured in the air of hard metal industries (80% of the fibers were ≤0.3 µm in diameter) (Sahle 1992; Sahle et al. 1994), are capable of generating hydroxyl radicals in human lung cells in vitro, and that these fibers were more cytotoxic than ...

  4. 1 sty 2023 · In this chapter, the current state of the tungsten toxicology field will be discussed focusing on data investigating tungsten carcinogenicity and other major toxicities including pulmonary, cardiometabolic, bone, and immune endpoints, either alone or in combination with other metals.

  5. Processes of human origin, such as ore processing, hard-metal fabrication, tungsten carbide production and use, and municipal waste combustion, release tungsten to the atmosphere. Tungsten naturally enters waterways through the weathering of rocks and soils.

  6. 22 lis 2023 · Non-stoichiometric compounds of tungsten oxides that are abundant on the earth received extensive attention in electrochromic devices, electrochemistry, photothermal conversion, gas...

  7. Cemented tungsten carbide, a hard substance used to make grinding wheels and cutting or forming tools, is the most common tungsten compound. Other tungsten compounds are used in ceramic pigments, as fire retardant coatings for fabrics, and as fade-resistant dyes for fabrics.

  1. Ludzie szukają również