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12125-02-9 - Ammonium chloride, Puratronic®, 99.999% (metals basis) - 10632 - Alfa Aesar

10632 Ammonium chloride, Puratronic®, 99.999% (metals basis)

Codice CAS
12125-02-9
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
50g 69,30
250g 301,00
1kg 1081,00
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Ammonium chloride, Puratronic®, 99.999% (metals basis)

MDL
MFCD00011420
EINECS
235-186-4

Proprietà chimiche

Formula
NH4Cl
Peso formula
53.49
Modulo
Powder
Punto di fusione
340° subl.
Densità
^=1.53
Indice di rifrazione
1.642
Sensibilità
Hygroscopic
Solubilità
Highly soluble in water. Soluble in liquid ammonia, acetone, hydrazine, alcohol. Insoluble in diethyl ether and ethyl acetate.

Applicazioni

Ammonium chloride finds its use as a flux in preparing metals for galvanizing, soldering or tin coating. While mainly referred as a nitrogen source fertilizer, it is also used in cleaning tip of soldering iron, hair shampoo as a thickening agent, some batteries as electrolyte, tanning, textile printing, dyeing, and cleaning products. In laboratories it is used to produce cooling baths and for producing buffers. Along with certain metals, it is used for effecting certain reductions in organic synthesis. It can be used as a precursor to ammonium cyanate, which is employed in the Wöhler synthesis of urea. It facilitates several organic transformations in a mild and efficient manner - for example in Ulmann coupling, cross-aldol condensation, Claisen rearrangement, reduction, thia-Michael addition and synthesis of several monocyclic, fused or spiro bicyclic nitrogen heterocycles.

Note

On heating it decomposes to ammonia and hydrogen chloride gas.

Letteratura

Pal, R. Recent Progress of Ammonium Chloride as Catalyst in Organic Synthesis. IOSR J. Appl. Chem. 2013, 4 (2), 86-99.

Chernyshev, A. V.; Tarasov, P. A.; Semianov, K. A.; Nekrasov, V. M.; Hoekstra, A. G.; Maltsev, V. P. Erythrocyte lysis in isotonic solution of ammonium chloride: Theoretical modeling and experimental verification. J. Theor. Biol. 2008, 251 (1), 93-107.

Peppin, S. S. L.; Huppert, H. E.; Worster, M. G. Steady-state solidification of aqueous ammonium chloride. J. Fluid Mech. 2008, 599, 465-476.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H319

Harmful if swallowed. Causes serious eye irritation.

Dichiarazioni precauzionali: P280i-P264-P305+P351+P338-P301+P312a-P337+P313-P501a

Wear eye/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: If eye irritation persists: Get medical advice/attention. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,509
Codice tariffe armonizzato
2827.10
TSCA
Yes
RTECS
BP4550000

Raccomandato

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    Sodium chloride, Puratronic®, 99.998% (metals basis)
  • 10874

    Sodium sulfate, Puratronic®, 99.9955% (metals basis)
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    Zinc granules, ACS, -20 mesh, 99.8% min

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