Search results
Results from the WOW.Com Content Network
It is a purplish-black crystalline salt, which dissolves in water as K + and MnO − 4 ions to give an intensely pink to purple solution. Potassium permanganate is widely used in the chemical industry and laboratories as a strong oxidizing agent , and also as a medication for dermatitis , for cleaning wounds , and general disinfection .
This reaction illustrates the relatively rare role of hydroxide as a reducing agent. The concentration of K 2 MnO 4 in such solutions can be checked by measuring their absorbance at 610 nm. The one-electron reduction of permanganate to manganate can also be effected using iodide as the reducing agent: 2 KMnO 4 + 2 KI → 2 K 2 MnO 4 + I 2
Heterogeneous OER is sensitive to the surface which the reaction takes place and is also affected by the pH of the solution. The general mechanism for acidic and alkaline solutions is shown below. Under acidic conditions water binds to the surface with the irreversible removal of one electron and one proton to form a platinum hydroxide. [4]
The U.S. Labor Department on Thursday approved up to $10 million for California in emergency grants to pay for disaster-relief jobs and training, with an initial release of $1 million, the ...
In a mouse study, researchers found that zolpidem (Ambien), a common sleep aid, could prevent the brain from effectively clearing up 'waste', though it remains unclear whether this could affect ...
Kate Middleton is opening up about the long-term side effects of her cancer treatment.. On Tuesday, Jan. 14, the Princess of Wales spoke with staff during a surprise visit to the Royal Marsden ...
This reaction to form carbon dioxide and molybdenum is endothermic at low temperatures, becoming less so with increasing temperature. [18] ΔH° is zero at 1855 K, and the reaction becomes exothermic above that temperature. Changes in temperature can also reverse the direction tendency of a reaction. For example, the water gas shift reaction
Texas Attorney General Ken Paxton has sued the NCAA, accusing the college athletic association of misleading fans by allowing transgender athletes to participate in women’s events.