Fortfahren mit
40276
Fluorwasserstoffsäure
49.5-50.5%
Synonym(e):
HF
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Lineare Formel:
HF
CAS-Nummer:
Molekulargewicht:
20.01
UNSPSC Code:
12352106
PubChem Substance ID:
EC Number:
231-634-8
MDL number:
Assay:
49.5-50.5%
vapor density
1.27 (vs air)
vapor pressure
25 mmHg ( 20 °C)
assay
49.5-50.5%
CofA
specification on request
density
1.15 g/mL at 25 °C (lit.)
SMILES string
[H+].[F-]
InChI
1S/FH/h1H
InChI key
KRHYYFGTRYWZRS-UHFFFAOYSA-N
General description
HF is a colorless inorganic acid. Hydrogen fluoride may be formed by reacting calcium fluoride and sulfuric acid at 200oC. The fluoride in the acid has very high affinity to silicon, making it useful in etching or removal of silicon.[1]
Application
Industrial uses of HF include etching or polishing glass, ceramics and silicon surfaces.[1] HF may be used to etch silica capillaries for it behave as a filter and an integrated nanofluidic device for the stacking of DNA and proteins.[2] Dentin and ceramic inlays may be etched with HF for better adhesive bonding.[3][4] Nanohydroxyapatite was etched with 0.5%HF prior to measuring its morphological and mechanical properties.[5]
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A
Lagerklasse
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
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Ian Ford et al.
International journal of cardiology, 184, 163-169 (2015-02-24)
We identified easily obtained baseline characteristics associated with outcomes in patients with chronic heart failure (HF) and elevated heart rate (HR) receiving contemporary guideline-recommended therapy in the SHIFT trial, and used them to develop a prognostic model. We selected the
Yvonne C J Wientjes et al.
Genetics, selection, evolution : GSE, 47, 42-42 (2015-05-09)
Although simulation studies show that combining multiple breeds in one reference population increases accuracy of genomic prediction, this is not always confirmed in empirical studies. This discrepancy might be due to the assumptions on quantitative trait loci (QTL) properties applied
Faiez Zannad et al.
European journal of heart failure, 17(7), 735-742 (2015-04-29)
Thrombin is a critical element of crosstalk between pathways contributing to worsening of established heart failure (HF). The aim of this study is to explore the efficacy and safety of rivaroxaban 2.5 mg bid compared with placebo (with standard care) after