455830

Sigma-Aldrich

Ammonium hydrogen difluoride

99.999% trace metals basis

Synonym(s):
Ammonium bifluoride, Etching powder
Linear Formula:
NH4HF2
CAS Number:
Molecular Weight:
57.04
EC Number:
MDL number:
eCl@ss:
38050109
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.999% trace metals basis

form

crystalline

impurities

≤ 15.0  ppm Trace Metal Analysis

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

Used for the preparation of ammonium aminosilylfluorides and complex metal fluorides. Employed in a new hydrothermal synthesis of complex flourides NaHoF4 and NaEuF4; these interesting compounds have the fluorite structure and are important for solid-state lasers as well as for photoluminescence and magnetic characteristics

Packaging

25, 100 g in poly bottle

Pictograms

CorrosionSkull and crossbones

Signal Word

Danger

Hazard Statements

hazcat

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 Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Chemical Communications (Cambridge, England), 1641-1641 (1996)
Zeitschrift fur Anorganische und Allgemeine Chemie, 622, 1646-1646 (1996)
Xun, X. et al.
Chemistry of Materials, 9, 2966-2966 (1997)
Hiroko Sano et al.
PLoS genetics, 11(5), e1005209-e1005209 (2015-05-29)
The coordination of growth with nutritional status is essential for proper development and physiology. Nutritional information is mostly perceived by peripheral organs before being relayed to the brain, which modulates physiological responses. Hormonal signaling ensures this organ-to-organ communication, and the...
Sebastian Ribi et al.
Oncotarget, 6(10), 7727-7740 (2015-03-13)
Somatic mutations of TP53 are among the most common in cancer and germline mutations of TP53 (usually missense) can cause Li-Fraumeni syndrome (LFS). Recently, recurrent genomic rearrangements in intron 1 of TP53 have been described in osteosarcoma (OS), a highly...

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