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221228

Sigma-Aldrich

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
Beilstein:
3587154
MDL number:
MFCD00066650
UNSPSC Code:
12352106
eCl@ss:
38060103
PubChem Substance ID:
329752250
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

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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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

View returnable container options.

Other Notes

ACS specifications same for product 320145
2024 CiteAb Award Winner for Supplier Succeeding in Parkinson′s Research

Signal Word

Danger

Hazard Statements

H314,H335,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - 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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

221228-6X2.5L-P-A:
221228-1L:
221228-12X100ML-A:
221228-1L-PCA-PW:4548173372389
221228-6X500ML-PCA:
221228-BULK:
221228-6X500MLPAPW:
221228-1L-PCA:4548173372396
221228-160L-A-FP:
221228-BULK-A:
221228-100ML:
221228-6X500ML-A:4548173117966
221228-6X500MLPCPW:
221228-6X500ML-P-A:
221228-160L-RC-A:
221228-6X500ML-APW:
221228-2L-A:4548173117942
221228-CH:
221228-1L-A:4548173117928
221228-2.5L-A-PW:
221228-500ML-P-A:
221228-2.5L-A:4548173958507
221228-500ML-PCA:4548173985046
221228-6X2.5L-PCA:
221228-2.5L:
221228-385LB-A:4548173251028
221228-194L-A:
QR-030-500ML:
221228-VAR-A:
221228-174L-A:
221228-500ML-A-PW:
221228-2.5L-P-A:
221228-6X2.5L-A:
221228-6X500ML-GLA:
221228-500ML:
221228-6X2.5L-PCPW:
221228-6X2.5LPA-PW:
221228-10L-A:4548174011263
221228-6X2.5L-A-PW:
221228-25ML-A:4548173117935
221228-500ML-A:4548173117959
221228-500ML-PCAPW:
221228-2.5L-PCA:
221228-100ML-A:4548173297002
221228-2.5L-PCA-PW:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW9315
SHBS4120
MKCV5396
MKCW1540
MKCV9796

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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
An efficient and fast procedure for the Hantzsch dihydropyridine synthesis under microwave conditions.
Oehberg L and Westman J
Synlett, 2001(08), 1296-1298 (2001)
Ramakrishna A
Goyal?s IIT foundation course chemistry: For Class-9, 160-160 (2014)
Synthesis and characterization of biocompatible Fe3O4 nanoparticles.
Sun J, et al.
Journal of Biomedical Materials Research Part A, 80(2), 333-341 (2007)
Isolation and characterization of mesenchymal stem cells.
Odabas SA, et al.
Bone Marrow and Stem Cell Transplantation., 47-63 (2014)
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