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hyponitrous
hyponitrous, a. Chem. (hɪpəʊ-, haɪpəʊˈnaɪtrəs) [f. hypo- 5 + nitrous. Cf. F. hyponitreux.] In hyponitrous acid, an unstable acid, (HNO)2, obtained in combination as a potassium salt.1826 Henry Elem. Chem. I. 319 It appears to me that there are sufficient grounds for admitting the existence of hypo-n...
Oxford English Dictionary
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Hyponitrous acid
Structure and properties
There are two possible structures of hyponitrous acid, trans and cis. trans-Hyponitrous acid forms white crystals that are explosive when dry.
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Silver hyponitrite
Hyponitrous acid
Reaction of silver hyponitrite with anhydrous hydrogen chloride in ether is the standard way to prepare hyponitrous acid:
+ 2 HCl →
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hyponitrite
hyponitrite Chem. (hɪpəʊ-, haɪpəʊˈnaɪtraɪt) [f. hypo- 5 + nitrite.] A salt of hyponitrous acid.1846 Penny Cycl. Suppl. II. 67/2 Hyponitrites may..be formed by moderately heating certain nitrates. 1873 Fownes' Chem. (ed. 11) 150 Salts called respectively hypo⁓nitrites, nitrites, and nitrates. 1894 Ro...
Oxford English Dictionary
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Hyponitrite
Such compounds can be viewed as salts and esters of respectively hyponitrous acid or HON=NOH.
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Hyponitrite reductase
enzymology, a hyponitrite reductase is an enzyme that catalyzes the oxidation of hydroxylamine by the nicotinamide adenine dinucleotide cation (NAD+) into hyponitrous
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hypo-
hypo- (hɪpəʊ, haɪpəʊ) before vowels also hyp-, prefix, repr. Gr. ὑπο-, ὑπ- (f. ὑπό prep. and adv. ‘under’ = L. sub), largely employed in Greek in the formation of verbs, adjectives, and substantives. With verbs, and their derivatives, ὑπο- had the senses ‘under, beneath, down, from below; underhand,...
Oxford English Dictionary
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Nitramide
It is an isomer of hyponitrous acid.
Structure
The nitramide molecule is essentially an amine group () bonded to a nitro group ().
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azote
azote Chem. (æˈzəʊt) Also 8–9 azot. [a. F. azote, f. Gr. ἀ priv. + ζώ-ειν = ζά-ειν to live, ζωή life. Littré points out that this word (like oxygen) is not etymologically formed, since Gr. ἄζωτος means ‘ungirt.’] The name given by Lavoisier, from its inability to support life, to the gas now known a...
Oxford English Dictionary
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H2N2O2
{{DISPLAYTITLE:H2N2O2}}
The molecular formula H2N2O2 (molar mass: 62.03 g/mol) may refer to:
Hyponitrite ion
Hyponitrous acid
Nitramide
Inorganic
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连二次硝酸
连二次硝酸(化学式:H2N2O2),也称为连二亚硝酸、连二次亚硝酸(Hyponitrous acid),无色小片状晶体,是氮的含氧酸之一。可溶于水和乙醇。是硝酰胺(H2N-NO2)的异构体。
性质
结构写作HO-N=N-OH,有顺式和反式两种,反式较稳定。固态时为反式结构。
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Nef reaction
This intermediate rearranges to hyponitrous acid 6 (forming nitrous oxide 6c through 6b) and the oxonium ion 7 which loses a proton to form the carbonyl
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Nitroxyl
Nitroxyl rapidly decomposes by a bimolecular pathway to nitrous oxide (k at 298 K = ):
2 HNO → N2O + H2O
The reaction proceeds via dimerization to hyponitrous
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spirit
▪ I. spirit, n. (ˈspɪrɪt) Forms: α. 3– spirit, 4–6 -ite, 4–5 -itt, 4, 6 spiryte, 5 spiryt, 9 dial. spirut; 4–6 spyrite, 5 -itte, -id, -ut, -ete, 5–6 -it, 4–5 spyryt, 5–6 -yte. β. 5 sperete, -ite, 5–6 speryt, 5, 7, 9 sperit, 9 sperrit. See also spirt, spright, and sprite. [a. AF. spirit (espirit), sp...
Oxford English Dictionary
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