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Ammonium hydroxide solution

ACS reagent, 28.0-30.0% NH3 basis

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Synonym(s):
Ammonia aqueous, Ammonia water
Linear Formula:
NH4OH
CAS Number:
Molecular Weight:
35.05
Beilstein:
3587154
MDL number:
eCl@ss:
38060103
PubChem Substance ID:
NACRES:
NA.21

grade

ACS reagent

Quality Level

form

liquid

autoignition temp.

1204 °F

expl. lim.

27 %

concentration

28.0-30.0% NH3

impurities

MnO4- reducers, passes test
≤0.002% CO2

ign. residue

≤0.002%

pH

11.7 (20 °C)

density

0.9 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.5 ppm
nitrate (NO3-): ≤2 ppm
phosphate (PO43-): ≤2 ppm
sulfate (SO42-): ≤2 ppm

cation traces

Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)

storage temp.

2-8°C

SMILES string

[NH4+].[OH-]

InChI

1S/H3N.H2O/h1H3;1H2

InChI key

VHUUQVKOLVNVRT-UHFFFAOYSA-N

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This Item
3050133881817093
form

liquid

form

liquid

form

liquid

form

liquid

concentration

28.0-30.0% NH3

concentration

~25% NH3

concentration

28% NH3 in H2O

concentration

≥25% NH3 in H2O

impurities

MnO4- reducers, passes test, ≤0.002% CO2

impurities

readily oxidisable substances, in accordance, ≤0.0001% heavy metals (as Pb), ≤0.0005% KMnO4 red. matter (as O), ≤0.0018% non-volatile matter

impurities

-

impurities

-

pH

11.7 (20 °C)

pH

11.7 (20 °C)

pH

11.7 (20 °C)

pH

11.7 (20 °C)

density

0.9 g/mL at 25 °C (lit.)

density

0.892-0.910 g/mL at 20 °C, 0.9 g/mL at 25 °C (lit.)

density

0.9 g/mL at 25 °C (lit.)

density

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

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.

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.

Other Notes

ACS specifications same for product 320145

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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