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Merck
CN

30101

Ammonium fluoride

puriss. p.a., ACS reagent, ≥98%

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About This Item

Linear Formula:
NH4F
CAS Number:
12125-01-8
Molecular Weight:
37.04
PubChem Substance ID:
329753432
eCl@ss:
38050106
UNSPSC Code:
12352302
EC Number:
235-185-9
MDL number:
MFCD00011423
Assay:
≥98%
Form:
solid

Key Documents

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InChI key

LDDQLRUQCUTJBB-UHFFFAOYSA-N

InChI

1S/FH.H3N/h1H;1H3

SMILES string

N.F

grade

ACS reagent, puriss. p.a.

assay

≥98%

form

solid

impurities

≤0.1% hexafluorosilicate (as SiF6), ≤1% ammonium hydrogen difluoride (NH4HF2)

ign. residue

≤0.005% (as SO4)

anion traces

chloride (Cl-): ≤5 mg/kg, sulfate (SO42-): ≤50 mg/kg

cation traces

Cd: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤20 mg/kg, Na: ≤20 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg

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pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral

Storage Class

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

wgk

WGK 1

flash_point_f

does not flash

flash_point_c

does not flash

Regulatory Information

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Etching processing of Si (111) and Si (100) surfaces in an ammonium fluoride solution investigated by in situ ATR-IR.
Nakamura M, et al.
Electrochimica Acta, 41(5), 681-686 (1996)
On the Etching of Silicon by Oxidants in Ammonium Fluoride Solutions A Mechanistic Study.
Gerischer H and Lubke M.
Journal of the Electrochemical Society, 135(11), 2782-2786 (1988)
Surface analysis of the electropolishing layer on Si (111) in ammonium fluoride solution.
Lewerenz HJ, et al.
Electrochimica Acta, 45(28), 4615-4627 (2000)
Jae Hoon Bong et al.
Nanoscale, 6(15), 8503-8508 (2014-06-21)
We report a post-synthetic n-doping method for chemical-vapor-deposition (CVD) grown graphene using wet chemical processing. An ammonium fluoride solution was found effective in converting pristine hole doping into electron doping in addition to the mobility improvement of charge carriers. We
Tom Fiers et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 893-894, 57-62 (2012-03-21)
Measurement of estrone (E1) and estradiol (E2) values <1 pg/mL (3.7 pmol/L) is necessary for postmenopausal, pediatric and male serum samples. Until now this was rarely reached and only through derivatization which can present problems for estradiol. A very sensitive
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