Thorium in a sentence

As thorium occurs naturally, it exists in very small quantities almost everywhere on Earth: the average human contains about 100 micrograms of thorium and typically consumes three micrograms per day of thorium.

Thorite, or tetragonal thorium silicate (ThSiO 4 ), also has a high thorium content and is the mineral in which thorium was first discovered.

As such, 232 Th still occurs naturally today: four-fifths of the thorium present at Earth's formation has survived to the present. citation citation citation Thorium and uranium are thus the most well-studied of all the radioactive elements.

Australian Radiation Protection and Nuclear Safety Agency Chemical The chemical toxicity of thorium is low because thorium and its most common compounds (mostly the dioxide) are poorly soluble in water.

His studies were flawed by the fact that the decay series of thorium was not understood, which led to incorrect results for samples that contained both uranium and thorium.

In bulk, the reaction of pure thorium with air is slow, although corrosion may eventually occur after several months; most thorium samples are however contaminated with varying degrees of the dioxide, which greatly accelerates corrosion.

In thorium fuel cycle thorium-232 absorbs a neutron in either a fast or thermal reactor.

It can take as much as thirty years after the ingestion of thorium for symptoms to manifest themselves. citation Powdered thorium metal is pyrophoric and often ignites spontaneously in air.

It contains around 2.5% thorium on average, although some deposits may contain up to 20% thorium.

So, thorium and protactinium, but not uranium compounds are poorly soluble in aqueous solutions, and precipitate into sediments; the precipitation rate is faster for thorium than for protactinium.

The burnt fuels are thorium with reactor-grade plutonium (RGPu), thorium with weapons-grade plutonium (WGPu) and Mixed Oxide fuel (MOX).

The main problem of isolating thorium lies not in its chemical electropositivity, but in the close association of thorium in nature with the rare earth elements and uranium, which collectively are difficult to separate from each other.

They obtained 99% pure thorium metal by reducing thorium chloride with sodium metal.

This would extend the total practical fissionable resource base by 450%. citation India's three-stage nuclear power programme features the use of a thorium fuel cycle in the third stage, as it has abundant thorium reserves but little uranium.

When it was realised that all of these are isotopes of thorium, many of these names fell out of use, and "thorium" came to refer to all isotopes, not just 232 Th.

While absorption through the skin is possible, it is not a likely means of thorium exposure. citation Natural thorium decays very slowly compared to many other radioactive materials, and the alpha radiation emitted cannot penetrate human skin.

While congratulating Tinubu and the entire APC family for the judicial thorium, the lawmaker appealed to the president to extend his hand of fellowship to the losers for the second time.

The FBR is an important milestone for getting to the third stage, paving the way for the eventual full utilisation of the country’s thorium.

A long-term, sustainable supply of uranium (and potentially thorium in the future) is an essential part of the nuclear fuel cycle.

By dating corals, going back even further with uranium-thorium dating than with radiocarbon dating, DeLong and her co-authors can observe paleoenvironmental changes in ancient coral skeletons.