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Some thorium compounds are chemically moderately toxic, especially in the presence of strong complex-forming ions such as citrate that carry the thorium into the body in soluble form. [179] If a thorium-containing object has been chewed or sucked, it loses 0.4% of thorium and 90% of its dangerous daughters to the body. [127] Three-quarters of ...
Thorium resources are the estimated mineral reserves of thorium on Earth. Thorium is a future potential source of low-carbon energy. [1] Thorium has been demonstrated to perform as a nuclear fuel in several reactor designs. [2] [3] It is present with a higher abundance than uranium in the crust of the earth. Thorium resources have not been ...
Monazite contains 2.5% thorium, allanite has 0.1 to 2% thorium and zircon can have up to 0.4% thorium. [2] Thorium-containing minerals occur on all continents. [3] [4] [5] Thorium is several times more abundant in Earth's crust than all isotopes of uranium combined and thorium-232 is several hundred times more abundant than uranium-235. [6]
Thorium has a characteristic terrestrial isotopic composition and thus a standard atomic weight can be given. Thirty-one radioisotopes have been characterized, with the most stable being 232 Th, 230 Th with a half-life of 75,380 years, 229 Th with a half-life of 7,917 years, [ 2 ] and 228 Th with a half-life of 1.92 years.
A new Clean Label Project report suggests some protein powders contain heavy metals lead and cadmium. See which ones are safe here, plus what an expert advises.
Thallium can enter the body through inhalation, absorption through the skin, or through ingestion. Acute symptoms of thallium exposure include, but are not limited to, stomach pain, diarrhea, and vomiting. More serious neurological symptoms don't appear until days after the metal has been ingested.
Foodborne botulism is a potentially deadly condition that’s caused by eating food contaminated with botulinum toxin, a potent toxin that attacks the body’s nervous system.The disease is ...
Spoilers ahead! We've warned you. We mean it. Read no further until you really want some clues or you've completely given up and want the answers ASAP. Get ready for all of today's NYT ...