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Thiocyanate [6] is known to be an important part in the biosynthesis of hypothiocyanite by a lactoperoxidase. [7] [8] [9] Thus the complete absence of thiocyanate or reduced thiocyanate [10] in the human body, (e.g., cystic fibrosis) is damaging to the human host defense system.
Organic thiocyanates are hydrolyzed to thiocarbamates in the Riemschneider thiocarbamate synthesis. Electrochemical reduction typically converts thiocyanates to thioates and cyanide, although sometimes it can replace the thiocyanate group as a whole with hydride. [8] Some thiocyanates isomerize to the isothiocyanates.
Addition of a thiocyanate salt to a solution containing ferric ions gives a deep red color. The identity of the chromophore remains unknown. [15] The reverse was also used: testing for the presence of thiocyanate by the addition of ferric salts. The 1:1 complex of thiocyanate and iron is deeply red. The effect was first reported in 1826. [16]
The first synthesis of mercury thiocyanate was probably completed in 1821 by Jöns Jacob Berzelius: HgO + 2 HSCN → Hg(SCN) 2 + H 2 O. Evidence for the first pure sample was presented in 1866 prepared by a chemist named Otto Hermes. [2] It is prepared by treating solutions containing mercury(II) and thiocyanate ions.
Sodium thiocyanate (sometimes called sodium sulphocyanide) is the chemical compound with the formula NaSCN. This colorless deliquescent salt is one of the main sources of the thiocyanate anion . As such, it is used as a precursor for the synthesis of pharmaceuticals and other specialty chemicals . [ 2 ]
Cobalt(II) thiocyanate is an inorganic compound with the formula Co(SCN) 2. [1] The anhydrous compound is a coordination polymer with a layered structure. The trihydrate, Co(SCN) 2 (H 2 O) 3, is a isothiocyanate complex used in the cobalt thiocyanate test (or Scott test) for detecting cocaine. The test has been responsible for widespread false ...
Allyl thiocyanate isomerizes to the isothiocyanate: [4] CH 2 =CHCH 2 SCN → CH 2 =CHCH 2 NCS. Isothiocyanates can be prepared by treating organic dithiocarbamate salts with lead nitrate or tosyl chloride. [5] [6] Synthesis of phenyl isothiocyanate. Isothiocyanates may also be accessed by the fragmentation reactions of 1,4,2-oxathiazoles. [7]
Nickel(II) thiocyanate is a coordination polymer with formula Ni(SCN) 2. [1] It is a green-brown solid and its crystal structure was determined first in 1982. [ 1 ]