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Sigma-Aldrich

Ammonium hydrogen difluoride

reagent grade, 95%

Synonym(s):

Ammonium bifluoride, Etching powder

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About This Item

Linear Formula:
NH4HF2
CAS Number:
Molecular Weight:
57.04
EC Number:
MDL number:
UNSPSC Code:
12352300
eCl@ss:
38050109
PubChem Substance ID:
NACRES:
NA.55

grade

reagent grade

Quality Level

Assay

95%

form

crystals
flakes

mp

125 °C (lit.)

SMILES string

N.F.F

InChI

1S/2FH.H3N/h2*1H;1H3

InChI key

KVBCYCWRDBDGBG-UHFFFAOYSA-N

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Application

Employed in a new hydrothermal synthesis of complex flourides NaHoF4 and NaEuF4 these interesting compounds have the fluorite structure and are important forsolid-state lasers as well as for photoluminescence and magnetic characteristics.

Pictograms

Skull and crossbonesCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Xun, X. et al.
Chemistry of Materials, 9, 2966-2966 (1997)
Bishi Fu et al.
Journal of virology, 89(1), 195-207 (2014-10-17)
We have previously shown that ORF45, an immediate-early and tegument protein of Kaposi's sarcoma-associated herpesvirus (KSHV), causes sustained activation of p90 ribosomal S6 kinases (RSKs) and extracellular regulated kinase (ERK) (E. Kuang, Q. Tang, G. G. Maul, and F. Zhu
Wesley C Warren et al.
Genome research, 25(12), 1921-1933 (2015-09-18)
We describe a genome reference of the African green monkey or vervet (Chlorocebus aethiops). This member of the Old World monkey (OWM) superfamily is uniquely valuable for genetic investigations of simian immunodeficiency virus (SIV), for which it is the most
Na-Yu Chia et al.
Gut, 64(5), 707-719 (2014-07-24)
Gastric cancer (GC) is a deadly malignancy for which new therapeutic strategies are needed. Three transcription factors, KLF5, GATA4 and GATA6, have been previously reported to exhibit genomic amplification in GC. We sought to validate these findings, investigate how these
Yuexiang Li et al.
Journal of hazardous materials, 182(1-3), 90-96 (2010-06-29)
A nitrogen-doped TiO(2) (N-TiO(2)) photocatalyst was prepared by calcination of the hydrolysis precipitate of Ti(SO(4))(2) with aqueous ammonia. The prepared N-TiO(2) was treated with NH(4)F (F-N-TiO(2)) by an impregnation-calcination method. The photocatalyst (F-N-TiO(2)) was characterized by X-ray diffraction (XRD), Fourier

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