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H 2 N 2 O 2 + 2 H + + 2 e − ⇌ N 2 + 2 H 2 O; E 0 = +2.65 V. Oxidation reactions usually result in the formation of the nitrate ion, with nitrogen in oxidation state +5. For example, oxidation with permanganate ion can be used for quantitative analysis of nitrite (by titration): 5 NO − 2 + 2 MnO − 4 + 6 H + → 5 NO −
The synergic effect of the atomic thickness, high flexibility, stronger surface adsorption capability, electrical insulation, impermeability, high thermal and chemical stability of BN nanosheets can increase the Raman sensitivity by up to two orders, and in the meantime attain long-term stability and reusability not readily achievable by other ...
Isosorbide is a bicyclic chemical compound from the group of diols and the oxygen-containing heterocycles, containing two fused furan rings. The starting material for isosorbide is D-sorbitol , which is obtained by catalytic hydrogenation of D-glucose , which is in turn produced by hydrolysis of starch .
For gases, departure from 3 R per mole of atoms is generally due to two factors: (1) failure of the higher quantum-energy-spaced vibration modes in gas molecules to be excited at room temperature, and (2) loss of potential energy degree of freedom for small gas molecules, simply because most of their atoms are not bonded maximally in space to ...
Hyponitrous acid (H 2 N 2 O 2) is a weak diprotic acid with the structure HON=NOH (pK a1 6.9, pK a2 11.6). Acidic solutions are quite stable but above pH 4 base-catalysed decomposition occurs via [HONNO] − to nitrous oxide and the hydroxide anion. Hyponitrites (involving the N 2 O 2−
Being the conjugate base of a strong acid (nitric acid, pK a = -1.4), nitrate has modest Lewis basicity.Two coordination modes are common: unidentate and bidentate.Often, bidentate nitrate, denoted κ 2-NO 3, is bound unsymmetrically in the sense that one M-O distance is clearly bonding and the other is more weakly interacting. [2]
The alkaline earth metal oxides are formed from the thermal decomposition of the corresponding carbonates. CaCO 3 → CaO + CO 2 (at approx. 900°C) In laboratory, they are obtained from hydroxides: Mg(OH) 2 → MgO + H 2 O. or nitrates: Ca(NO 3) 2 → CaO + 2NO 2 + 1/2O 2. The oxides exhibit basic character: they turn phenolphthalein red and ...
Copper(II) nitrate describes any member of the family of inorganic compounds with the formula Cu(NO 3) 2 (H 2 O) x. The hydrates are hygroscopic blue solids . Anhydrous copper nitrate forms blue-green crystals and sublimes in a vacuum at 150-200 °C.