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221228-M

Ammonium hydroxide solution

ACS reagent, 28.0-30.0% NH3 basis

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:
329752250
eCl@ss:
38060103
UNSPSC Code:
12352106
MDL number:
MFCD00066650
Beilstein/REAXYS Number:
3587154
Concentration:
28.0-30.0% NH3
Grade:
ACS reagent
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grade

ACS reagent

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%

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 (as Pb): ≤0.5 ppm

SMILES string

[NH4+].[OH-]

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.

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.

Packaging

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Other Notes

Important notice
This product will be phased out towards early 2019. There is a replacement product available : 221228
ACS specifications same for product 320145
SKU-Pack size with -PCA are packaged in PVC coated glass bottles.

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Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - 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

Regulatory Information

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Certificates of Analysis (COA)

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Christie Ying Kei Lung et al.
Dental materials journal, 32(1), 165-172 (2013-02-02)
The effect of silica-coating by sol-gel process on the bond strength of resin composite to zirconia was evaluated and compared against the sandblasting method. Four groups of zirconia samples were silica-coated by sol-gel process under varied reagent ratios of ethanol