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Concentrated sulfuric acid is a strong oxidant with powerful dehydrating properties, making it highly corrosive towards other materials, from rocks to metals. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid but, to the contrary, dehydrates sulfuric acid to sulfur trioxide. Upon addition of sulfuric acid ...
Typically metal sulfates are prepared by treating metal oxides, metal carbonates, or the metal itself with sulfuric acid: [7] Zn + H 2 SO 4 → ZnSO 4 + H 2 Cu(OH) 2 + H 2 SO 4 → CuSO 4 + 2 H 2 O CdCO 3 + H 2 SO 4 → CdSO 4 + H 2 O + CO 2. Although written with simple anhydrous formulas, these conversions generally are conducted in the ...
Mineral acids are also used directly for their corrosive properties. For example, a dilute solution of hydrochloric acid is used for removing the deposits from the inside of boilers, with precautions taken to prevent the corrosion of the boiler by the acid. This process is known as descaling. [citation needed]
Sulfurous acid is commonly known to not exist in its free state, and due to this, it is stated in textbooks that it cannot be isolated in the water-free form. [4] However, the molecule has been detected in the gas phase in 1988 by the dissociative ionization of diethyl sulfite. [5]
Molecular models of the different molecules active in Piranha solution: peroxysulfuric acid (H 2 SO 5) and hydrogen peroxide (H 2 O 2). Piranha solution, also known as piranha etch, is a mixture of sulfuric acid (H 2 SO 4) and hydrogen peroxide (H 2 O 2).
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"Dark Waters" is generating Oscar buzz — and renewed concern about potentially toxic kitchenware and other household items. The real-life story, which is in theaters now, follows Ohio attorney ...
It is a replacement for ammonium persulfate in etching mixtures for zinc and printed circuit boards, and is used for pickling of copper and some other metals. It is also used as a soil conditioner and for soil and groundwater remediation [ 5 ] [ 6 ] and in manufacture of dyestuffs , modification of starch , bleach activator , desizing agent for ...