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30501

Sigma-Aldrich

Ammonium hydroxide solution

puriss. p.a., reag. ISO, reag. Ph. Eur., ~25% NH3 basis

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Synonym(s):
Ammonia aqueous, Ammonia water
Linear Formula:
NH4OH
CAS Number:
1336-21-6
Molecular Weight:
35.05
Beilstein:
3587154
MDL number:
MFCD00066650
UNSPSC Code:
12352106
PubChem Substance ID:
329753525
NACRES:
NA.21

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

Quality Level

200

description

related substances ≤ 2 ppm (as pyridine)

grade

puriss. p.a.

form

liquid

expl. lim.

27 %

concentration

~25% NH3

impurities

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

evapn. residue

≤0.0018%

pH

11.7 (20 °C)

density

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

anion traces

carbonate (CO32-): ≤60 ppm
carbonate (as CO2): ≤10 ppm
chloride (Cl-): ≤0.5 ppm
phosphate (PO43-): ≤0.5 ppm
silicate (as SiO2): ≤10 ppm
sulfate (SO42-): ≤2 ppm
sulfide (S2-): ≤0.2 ppm

cation traces

Ag: ≤0.02 ppm
Al: ≤0.5 ppm
Au: ≤0.1 ppm
Ba: ≤0.05 ppm
Bi: ≤0.1 ppm
Ca: ≤1 ppm
Cd: ≤0.05 ppm
Co: ≤0.05 ppm
Cr: ≤0.05 ppm
Cu: ≤0.1 ppm
Fe: ≤0.1 ppm
Ga: ≤0.02 ppm
In: ≤0.02 ppm
K: ≤0.5 ppm
Li: ≤0.02 ppm
Mg: ≤0.1 ppm
Mn: ≤0.05 ppm
Mo: ≤0.05 ppm
Na: ≤1 ppm
Ni: ≤0.05 ppm
Pb: ≤0.05 ppm
Pt: ≤0.1 ppm
Sn: ≤0.1 ppm
Sr: ≤0.2 ppm
Ti: ≤0.1 ppm
Tl: ≤0.05 ppm
Zn: ≤0.1 ppm

SMILES string

[NH4+].[OH-]

suitability

complies for appearance of solution

storage temp.

2-8°C

InChI

1S/H3N.H2O/h1H3;1H2

InChI key

VHUUQVKOLVNVRT-UHFFFAOYSA-N

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Related Categories

Application


  • Smartphone-based digital image colorimetry for the determination of total capsaicinoid content in chili pepper extracts.: This study uses ammonium hydroxide solution in the extraction process, combined with smartphone-based colorimetric analysis, to accurately determine capsaicinoid levels, showcasing advancements in portable analytical techniques (Vakh C et al., 2024).

  • Open acid dissolution-Ammonia solution extraction-ICP OES rapid determination of 7 trace metal elements in soil.: This research highlights the use of ammonium hydroxide solution for the efficient extraction of trace metals from soil, followed by ICP OES analysis, providing a rapid and accurate method for environmental monitoring (Wang J et al., 2023).

  • Development and validation of a sensitive ultra-high-performance liquid chromatography-tandem mass spectrometry method for quantitative analysis of bambermycin in livestock and aquatic products: Implications for food safety control and regulatory enforcement.: Ammonium hydroxide solution is utilized in the sample preparation process for UHPLC-MS/MS analysis, ensuring accurate quantification of bambermycin in various food products (Park DH et al., 2023).

  • Fluorescent Carbon Dots from Food Industry By-Products for Cell Imaging.: The study uses ammonium hydroxide solution in the synthesis of fluorescent carbon dots from food by-products, demonstrating a sustainable approach to producing imaging agents for biomedical applications (Mancini F et al., 2023).

  • Constructing a heparin-modified penile decellularized scaffold to improve re-endothelialization in organizational reconstruction.: This research employs ammonium hydroxide solution in the decellularization process of tissue scaffolds, contributing to advancements in tissue engineering and regenerative medicine (Zhang H et al., 2022).

Packaging

In PE-bottles; also available PE-bottles black (Material no. ending with PEBL; Glass-bottles (Material no. ending with *-GL), PE canister (Material no. ending with *-H)

Other Notes

The article number 30501-4X2.5L will be discontinued. Please order the single bottle 30501-2.5L which is physically identical with the same exact specifications.
The article number 30501-4X2.5L-M will be discontinued. Please order the single bottle 30501-2.5L-M which is physically identical with the same exact specifications.
The article number 30501-6X1L will be discontinued. Please order the single bottle 30501-1L which is physically identical with the same exact specifications.
The article number 30501-6X1L-M will be discontinued. Please order the single bottle 30501-1L-M which is physically identical with the same exact specifications.

Signal Word

Danger

Hazard Statements

H314,H335,H410

Hazard Classifications

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

Target Organs

Respiratory system

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

危险化学品

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Andrea Krapp et al.
Cell reports, 26(4), 1044-1058 (2019-01-24)
Meiotic progression in S. pombe is regulated by stage-specific gene expression and translation, changes in RNA stability, expression of anti-sense transcripts, and targeted proteolysis of regulatory proteins. We have used SILAC labeling to examine the relative levels of proteins in diploid
Claudia M Gómez-Gutiérrez et al.
Scanning, 37(6), 389-392 (2015-05-27)
In this work, the influence of substrate on the morphology of ZnS thin films by chemical bath deposition is studied. The materials used were zinc acetate, tri-sodium citrate, thiourea, and ammonium hydroxide/ammonium chloride solution. The growth of ZnS thin films
Synchrotron photoemission spectroscopy study of ammonium hydroxide etching to prepare well-ordered GaAs (100) surfaces.
Lebedev MV, et al.
Applied Surface Science, 229(1), 226-232 (2004)
Jong-Hee Kim et al.
Journal of nanoscience and nanotechnology, 14(11), 8739-8744 (2015-05-12)
Magnetic nanoparticles were synthesized by the addition of ammonium hydroxide to an iron chloride solution by chemical co-precipitation. In order to examine systematically the crystal phase, average size, and magnetic properties of the magnetic nanoparticles, the following were used as
Silver electrocrystallization on vitreous carbon from ammonium hydroxide solutions.
Palomar-Pardave M, et al.
Journal of the Electrochemical Society, 143(5), 1551-1558 (1996)
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