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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]
Sodium selenate is produced by oxidation of selenium, first with nitric acid, producing selenous acid. The selenous acid is neutralized to form sodium selenite. The sodium selenite is oxidized in a basic medium hydrogen peroxide to form a selenate, which is then spray-dried. [3] Se + 2HNO 3 → H 2 SeO 3 + NO + NO 2 H 2 SeO 3 + Na 2 CO 3 → Na ...
Sodium arsenate – H 24 Na 3 AsO 16; Sodium azide – NaN 3; Sodium bicarbonate – NaHCO 3; Sodium biselenide – NaSeH; Sodium bisulfate – NaHSO 4; Sodium bisulfite – NaHSO 3; Sodium borate – Na 2 B 4 O 7; Sodium borohydride – NaBH 4; Sodium bromate – NaBrO 3; Sodium bromide – NaBr; Sodium bromite – NaBrO 2; Sodium carbide ...
These include silver selenite (Ag 2 SeO 3) and sodium selenite (Na 2 SeO 3). Hydrogen sulfide reacts with aqueous selenous acid to produce selenium disulfide : H 2 SeO 3 + 2 H 2 S SeS 2 + 3 H 2 O {\displaystyle {\ce {H2SeO3 + 2 H2S -> SeS2 + 3 H2O}}}
Sodium hydrogen selenite. Sodium hydrogen selenite is an inorganic chemical consisting of a ratio of one hydrogen, one sodium, three oxygen, and one selenium atom. It is the sodium salt of the conjugate base of selenous acid. This compound finds therapeutic application for providing the essential trace element selenium.
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 manufacturer's own product information describes Biodyl as an "injection solution containing metabolic constituents (adenosine triphosphoric acid or ATP, magnesium aspartate, potassium aspartate, sodium selenite and vitamin B 12) for debility, convalescence and myopathies." [2] Composition: [1] [3] Selenium (as sodium selenite)
Selenite refers to the anion with the chemical formula Se O 2− 3. It is the oxyanion of selenium. It is the selenium analog of the sulfite ion, SO 2− 3. Thus selenite is pyramidal and selenium is assigned oxidation state +4. Selenite also refers to compounds that contains this ion, for example sodium selenite Na 2 SeO 3 which is a common ...