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17093

Ammonium hydroxide solution

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
NACRES:
NA.21
PubChem Substance ID:
329751483
eCl@ss:
38060103
UNSPSC Code:
12352106
MDL number:
MFCD00066650
Beilstein/REAXYS Number:
3587154
Concentration:
≥25% NH3 in H2O
Form:
liquid
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grade

puriss. p.a. plus

Quality Segment

100

form

liquid

expl. lim.

27 %

concentration

≥25% NH3 in H2O

evapn. residue

≤0.001%

pH

11.7 (20 °C)

density

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

anion traces

chloride (Cl-): ≤0.2 mg/kg, phosphate (PO43-): ≤0.2 mg/kg, sulfate (SO42-): ≤1 mg/kg

SMILES string

[NH4+].[OH-]

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

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:
  • 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.
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.

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Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3

target_organs

Respiratory system

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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