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anion
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anion

Ion carrying a negative charge. An anion is formed from an atom by the gain of electrons, a process known as ionic bonding. Non-metallic elements form anions. During electrolysis, anions in the electrolyte move towards the anode (positive electrode).

An electrolyte, such as the salt zinc chloride (ZnCl2), is dissociated in aqueous solution or in the molten state into doubly charged Zn2+ cations and singly-charged Cl− anions. During electrolysis, the zinc cations flow to the cathode (to become discharged and liberate zinc metal) and the chloride anions flow to the anode (to become discharged and form chlorine gas).
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has patented a dye composition comprising, in a medium that is suitable for dying keratin fibers, at least one dye chosen from oxidation dye precursors and direct dyes, at least one surfactant chosen from nonionic surfactants and anionic surfactants, at least one hydroxyethylcellulose, at least one cationic associative polymer; and at least one fatty substance.
Dye composition patented by L'Oreal by Household & Personal Products Industry
A polymer having a functional head group derived from a sulfur containing anionic initiator, and optionally an additional functional group resulting from the use of a functional terminating reagent, coupling agent or linking agent is also provided.
Sulfur containing initiators for anionic polymerization of monomers by Rubber World
The surfactants can be discharged from wastewater treatment plants (WWTP) and from the sewage sludge used as a fertilizer in the agriculture, because anionic surfactants can accumulate in the sewage sludge [7-9].
Column study of the leaching and degradation of anionic surfactants ... by Selberg, Aare; Budashova, Jana; Tenno, Toomas / Estonian Academy of Sciences: Chemistry
 
 
 
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