Ammonium hydroxide solution

Name: Ammonium hydroxide solution
Brand: SIGALD

puriss. p.a. plus, ≥25% NH₃ in H₂O

Synonym(s):

Ammonia aqueous, Ammonia water

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About This Item

Linear Formula:

NH₄OH

CAS Number:

1336-21-6

Molecular Weight:

35.05

Beilstein:

3587154

MDL number:

MFCD00066650

UNSPSC Code:

12352106

eCl@ss:

38060103

PubChem Substance ID:

329751483

NACRES:

NA.21

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grade

puriss. p.a. plus

Quality Level

100

form

liquid

expl. lim.

27 %

concentration

≥25% NH₃ in H₂O

evapn. residue

≤0.001%

pH

11.7 (20 °C)

density

0.91 g/mL at 20 °C
0.9 g/mL at 25 °C (lit.)

anion traces

chloride (Cl^-): ≤0.2 mg/kg
phosphate (PO₄^3-): ≤0.2 mg/kg
sulfate (SO₄^2-): ≤1 mg/kg

cation traces

Ag: ≤0.01 mg/kg
As, Sb (as As): ≤0.01 mg/kg
Au: ≤0.01 mg/kg
B: ≤0.01 mg/kg
Ba: ≤0.01 mg/kg
Be: ≤0.01 mg/kg
Bi: ≤0.01 mg/kg
Ca: ≤0.01 mg/kg
Cd: ≤0.01 mg/kg
Co: ≤0.01 mg/kg
Cr: ≤0.01 mg/kg
Cs: ≤0.01 mg/kg
Cu: ≤0.01 mg/kg
Fe: ≤0.01 mg/kg
Ga: ≤0.01 mg/kg
Ge: ≤0.01 mg/kg
In: ≤0.01 mg/kg
K: ≤0.01 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤0.01 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.01 mg/kg
Na: ≤0.01 mg/kg
Ni: ≤0.01 mg/kg
Pb: ≤0.01 mg/kg
Pt: ≤0.01 mg/kg
Sn: ≤0.01 mg/kg
Sr: ≤0.01 mg/kg
Ti: ≤0.01 mg/kg
Tl: ≤0.01 mg/kg
V: ≤0.01 mg/kg
Zn: ≤0.01 mg/kg
Zr: ≤0.01 mg/kg

SMILES string

[NH4+].[OH-]

storage temp.

2-8°C

InChI

1S/H3N.H2O/h1H3;1H2

InChI key

VHUUQVKOLVNVRT-UHFFFAOYSA-N

General description

Ammonium hydroxide is a weak base mainly used as a source to prepare other ammonium compounds like urea, ammonium carbonate and ammonium sulfate etc.

Ammonium hydroxide solution is a solution of 30-33% NH₃ in H₂O. It is a colorless liquid having a strong characteristic odor. Electrolytic deposition of silver onto vitreous carbon electrodes from ammonium hydroxide solutions by the potential step technique has been reported.

Application

Ammonium hydroxide solution may be used in the following studies:

Preparation of magnetic nanoparticles.
To investigate the effect of substrate on the morphology of ZnS thin films by chemical bath deposition.
Preparation of amine functionalized cellulose nanocrystals (CNC-NH₂).
Wet processing of the GaAs(100) surface.

Ammonium hydroxide solution may be used:

As a medium to prepare magnetite (Fe₃O₄) nanoparticles via a modified controlled chemical coprecipitation method.
As a solvent and reagent to prepare 4-aryl and 4-alkyl-2,6-dimethyl-1,4-dihydro-3,5-pyridinedicarboxylates via Hantzsch synthesis in a microwave cavity synthesizer.

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