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The seaweed also had another, yet undiscovered, important chemical. One day towards the end of 1811 while Courtois was isolating sodium and potassium compounds from seaweed ash, he discovered iodine after he added sulfuric acid to the seaweed ash. He was investigating corrosion of his copper vessels when he noticed a vapor given off.
MacTear was initially employed as an assistant manager by Edward Cortis Stanford at the British Seaweed Company, Whitecrook chemical works [6] in Dalmuir, Clydebank. [1] Stanford had invented a process to extract iodine and potash from seaweed [7] that was being introduced to Scotland at the time.
Iodine in the ocean exists mostly in oceanic sediments and seawater. [4] During subduction of oceanic crust and seawater, most of the iodine cycles into seawater through brine, while a minor amount is cycled into the mantle. [4] Marine biota, including seaweed and fish, accumulate iodine from the seawater and return it during decomposition. [2]
The species Saccharina latissima yielded the greatest amount of iodine (between 10 and 15 lbs per ton) and was most abundant in Guernsey. Iodine was extracted from kelp ash using a lixiviation process. [42] As with sodium carbonate however, mineral sources eventually supplanted seaweed in iodine production. [43]
Their protein content is low and their heavy metal content is high, especially for arsenic and iodine, which are respectively toxic and nutritious. [36] [37] They are valued for fish production. [38] Adding seaweed to livestock feed can substantially reduce methane emissions from cattle, [39] but only from their feedlot emissions. As of 2021 ...
Bladder wrack is named for its conspicuous vesicles. Fucus vesiculosus, known by the common names bladderwrack, black tang, rockweed, sea grapes, bladder fucus, sea oak, cut weed, dyers fucus, red fucus and rock wrack, is a seaweed found on the coasts of the North Sea, the western Baltic Sea and the Atlantic and Pacific Oceans.
Additionally, red seaweed has a high concentration of taurine, an amino acid found in protein structures. A 2021 paper notes that it is a popular supplement for athletes trying to boost performance.
This is an accepted version of this page This is the latest accepted revision, reviewed on 9 January 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -din, -deen) Appearance lustrous metallic gray solid, black ...