Hydrazoic Acid and Its Inorganic Derivatives.

Audrieth, L. F.

doi:10.1021/cr60051a002

Cited by 63 publications

(20 citation statements)

References 68 publications

(124 reference statements)

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“…The alkali-metal azide (A ¼ Li, Na, K, Rb) decomposes to nitrogen and the reactive alkali metal at temperatures between 300 and 380 C [137,138] followed by the formation of the alkali-metal chloride. The whole reaction takes place in a closed h-BN cell in an evacuated glass tube and is completed after an annealing step (260-350 C for one day).…”

Section: De-intercalation Of Halide Anionsmentioning

confidence: 99%

Superconducting nitride halides MNX (M = Ti, Zr, Hf; X = Cl, Br, I)

Schurz

Shlyk

Schleid

et al. 2011

Zeitschrift Für Kristallographie

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Abstract. Two different polymorphs of the metal nitride halides MNX (M ¼ Ti, Zr, Hf; X ¼ Cl, Br, I) are known to crystallize in layered structures. The two crystal structures differ in the way 2 1 {X[M 2 N 2 ]X} slabs are stacked along the c-axes. Metal atoms and/or organic molecules can be intercalated into the van-der-Waals gap between these layers. After such an electron-doping via intercalation the prototypic band insulators change into superconductors with moderate high critical temperatures T c up to 25.5 K. This review gathers information on synthesis routes, structural characteristics and properties of the prototypic nitride halides and the derivatives after electron-doping with a focus on superconductivity.

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Section: De-intercalation Of Halide Anionsmentioning

confidence: 99%

Superconducting nitride halides MNX (M = Ti, Zr, Hf; X = Cl, Br, I)

Schurz

Shlyk

Schleid

et al. 2011

Zeitschrift Für Kristallographie

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“…Based on the literature, Audrieth (1934) reported that azide could react with nitrite. Furthermore, Tayyab and Ali (1995) increased the percentage of nitrite in their reagents to reduce the interference of azide in bilirubin quantification.…”

Section: Resultsmentioning

confidence: 99%

“…Bubbles were immediately observed when sodium azide was added to solutions containing nitrite, which is consistent with the reported reaction pathway of nitrite reduction to N 2 and N 2 O by azide (eq. [1]) (Audrieth 1934). Figure 4 demonstrates that nitrite reacts stoichiometrically with azide in solution.…”

Section: Resultsmentioning

confidence: 99%

Sodium azide interference in chemical and biological testing

Goel¹,

Cooper²,

Flora³

2003

Journal of Environmental Engineering and Science

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This paper discusses the results of sodium azide interference encountered during lab-scale studies in which sodium azide was used as a microbial growth inhibitor. In separate tests to evaluate the oxidation of naphthalene by various oxidants, the disappearance of naphthalene in batch experiments containing chlorine was negligible after 12 d of incubation. However, 38% and 77% disappearance of naphthalene was observed when 11 mg/L of sodium azide was present in solutions containing 19.5 mg/L and 52.5 mg/L total chlorine, respectively. Chlorine was consumed faster in the batch studies containing sodium azide. Increasing levels of azide in solution also resulted in lower naphthalene and chlorine levels. In a separate set of experiments, sodium azide interfered with nitrate quantification and produced nitrate levels that were progressively lower with increasing azide concentrations. The decrease in nitrate was caused by reactions of sodium azide with nitrite formed during cadmium reduction. In both cases, sodium azide was added to the test solution either to prevent microbial growth or to inhibit existing microbial activity. These tests demonstrate that azide could potentially interfere in chemical and biological testing.Résumé : Cet article traite des résultats de l'interférence de l'azoture de sodium rencontrée lors d'études en laboratoire dans lesquelles l'azoture de sodium était utilisé en tant qu'inhibiteur de prolifération microbienne. Dans des essais séparés pour évaluer l'oxydation du naphtalène par divers oxydants, la disparition du naphtalène lors d'expériences par lots contenant du chlore était négligeable après 12 jours d'incubation. Cependant, des disparitions de 38 % et de 77 % de naphtalène ont été observées lorsque 11 mg/L d'azoture de sodium était présent dans des solutions contenant 19,5 mg/L et 52,5 mg/L de chlore total respectivement. Le chlore était consumé plus rapidement dans les essais par lots contenant de l'azoture de sodium. L'augmentation des niveaux d'azoture en solution a également donné des niveaux inférieurs de naphtalène et de chlore. Lors d'un ensemble d'expériences séparées, l'azoture de sodium a interféré avec la quantification des nitrates et a produit des niveaux de nitrates qui diminuaient progressivement avec l'augmentation des concentrations d'azoture. La diminution des nitrates était causée par les réactions d'azoture de sodium avec le nitrite formé durant la réduction du cadmium. Dans ces deux cas, l'azoture de sodium était ajouté à la solution test soit pour prévenir la prolifération microbienne ou pour inhiber l'activité microbienne existante. Ces tests démontrent que l'azoture peut potentiellement interférer lors de tests chimiques et biologiques.

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“…Pure samples of HN, were prepared by the methods of Audrieth (10) while samples of CH3N3 were made by dropping dimethyl sulfate on an alkaline solution of sodium azide heated on a steam bath. These samples were dried over calcium chloride and redistilled for purification.…”

Section: T 2 [7] I/ii = ---Exp {[-Q(rn)mentioning

confidence: 99%