Ammonium fluoride

Manufactured by Chempur

Sourced in Poland

Ammonium fluoride is a chemical compound with the formula (NH4)F. It is a white crystalline solid that is highly soluble in water. Ammonium fluoride is commonly used as a laboratory reagent and in various industrial applications.

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Lab products found in correlation

Glycerin, by Chempur (2 mentions) Titaniumfoil, by Thermo Fisher Scientific (2 mentions) Sodium sulfide, by Merck Group (1 mentions) Trisodium citrate dihydrate, by Merck Group (1 mentions) Acetone, by Merck Group (1 mentions) Silver nitrate, by Merck Group (1 mentions) Polyvinylpyrrolidone, by Merck Group (1 mentions) Sodium sulphide, by Merck Group (1 mentions) Milli q system, by Merck Group (1 mentions) Silver nitrate, by Avantor (1 mentions) Acetone, by Avantor (1 mentions)

2 protocols using ammonium fluoride

Fabrication of Silver Cubic Nanoparticles and SERS Substrates

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The following chemical
reagents were used to prepare the silver cubic nanoparticles and SERS
substrates: trisodium citrate dihydrate, silver nitrate, potassium
chloride, ethylene glycol, ethanol, acetone (all of the above reagents
were from POCH S.A.), sodium sulfide (Sigma-Aldrich), polyvinylpyrrolidone
(PVP) with an average molar mass of ca. 4 × 10⁴ g/mol
(Fluka), glycerin (Chempur), ammonium fluoride (Chempur), and pyridine
(UniChem). All of the chemicals were used without further purification
or treatment. The water was purified by a Millipore Milli-Q system
and had a resistivity of ca. 18 MΩ/cm¹¹. A titanium
foil (0.25 mm-thick and 99.5% purity) from Alfa Aesar was used to
form the ATO (anodic titanium oxide) layer, and the reference was
a flat SERS substrate cut into 1 cm² round plates. Before
anodization, all the plates were cleaned ultrasonically with acetone
and ethanol, rinsed with water, and dried in air.

Ambroziak R., Krajczewski J., Pisarek M, & Kudelski A. (2020). Immobilization of Cubic Silver Plasmonic Nanoparticles on TiO2 Nanotubes, Reducing the Coffee Ring Effect in Surface-Enhanced Raman Spectroscopy Applications. ACS Omega, 5(23), 13963-13972.

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Synthesis and Characterization of Silver Nanoparticles

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Trisodium citrate dihydrate, silver nitrate, potassium chloride, ethylene glycol and acetone were purchased from POCH S.A. (Gliwice, Poland). Sodium sulphide was acquired from Sigma-Aldrich (St. Louis, MO, USA). Polyvinylpyrrolidone (PVP) with an average molar mass of ca. 4 × 10⁴ g mol⁻¹ was purchased from Fluka (Seelze, Germany). Glycerin and ammonium fluoride were purchased from Chempur (Piekary Slaskie, Poland). Pyridine was purchased from Ubichem (Eastleigh, UK). All of the chemicals were used without further purification or treatment. The water was purified by a Millipore Milli-Q system and had a resistivity of ca. 18 MΩ cm⁻¹. The silver used as a material for electrodes was purchased from the Polish Mint (Warsaw, Poland). Titanium foil of 0.25 mm thick and 99, 5% purity was purchased from Alfa Aesar (Kandel, Germany). It was cut into 1 cm² round plates. The plates were cleaned ultrasonically with acetone and ethanol, rinsed with deionized (DI) water, and dried in air.

Ambroziak R., Hołdyński M., Płociński T., Pisarek M, & Kudelski A. (2019). Cubic Silver Nanoparticles Fixed on TiO2 Nanotubes as Simple and Efficient Substrates for Surface Enhanced Raman Scattering. Materials, 12(20), 3373.

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