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Selenium is toxic in high concentrations. As sodium selenite, the chronic toxic dose for human beings was described as about 2.4 to 3 milligrams of selenium per day. [7] In 2000, the US Institute of Medicine set the adult Tolerable upper intake levels (UL) for selenium from all sources - food, drinking water and dietary supplements - at 400 μg/day. [8]
The chronic toxic dose of selenite for humans is about 2400 to 3000 micrograms of selenium per day. [140] Hydrogen selenide is an extremely toxic, corrosive gas. [ 141 ] Selenium also occurs in organic compounds, such as dimethyl selenide, selenomethionine , selenocysteine and methylselenocysteine , all of which have high bioavailability and ...
The US FDA and European Union currently classify sodium selenate as toxic, primarily if ingested or inhaled. Testing on rats showed a dose of 1.6 mg/kg to be lethal. A low lethal dose as this places the chemical as being 2 to 3 times more toxic than sodium cyanide. As such, it is extremely toxic and must be handled with care.
You're unlikely to reach toxic levels from food consumption alone though, with the exception of eating too many Brazil nuts. A single ounce containing six to eight Brazil nuts packs a whopping 544 ...
The chronic toxic dose of selenite for humans is about 2400 to 3000 micrograms of selenium per day for a long time. [20] Hydrogen selenide is an extremely toxic, corrosive gas. [ 21 ] Selenium also occurs in organic compounds, such as dimethyl selenide, selenomethionine , selenocysteine and methylselenocysteine , all of which have high ...
Hydrogen selenide is hazardous, being the most toxic selenium compound [3] and far more toxic than its congener hydrogen sulfide. The threshold limit value is 0.05 ppm. The gas acts as an irritant at concentrations higher than 0.3 ppm, which is the main warning sign of exposure; below 1 ppm, this is "insufficient to prevent exposure", while at ...
It is a strongly odiferous, toxic, and colorless gas. It is more acidic than H 2 S. In solution it ionizes to HSe −. The selenide dianion Se 2− forms a variety of compounds, including the minerals from which selenium is obtained commercially.
Today's Connections Game Answers for Wednesday, February 12, 2025: 1. DOCUMENTS OF OWNERSHIP: CERTIFICATE, DEED, RECEIPT, TITLE 2. BITS IN A VARIETY SHOW: DANCE ...
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