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40276

Sigma-Aldrich

Fluorwasserstoffsäure

semiconductor grade MOS PURANAL™ (Honeywell 17928), 49.5-50.5%

Synonym(e):

HF

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About This Item

Empirische Formel (Hill-System):
HF
CAS-Nummer:
7664-39-3
Molekulargewicht:
20.01
EG-Nummer:
231-634-8
MDL-Nummer:
MFCD00011346
UNSPSC-Code:
12352106
PubChem Substanz-ID:
57649960

Qualität

semiconductor grade MOS PURANAL™ (Honeywell 17928)

Dampfdichte

1.27 (vs air)

Dampfdruck

25 mmHg ( 20 °C)

Assay

49.5-50.5%

Analysenzertifikat (CofA)

specification on request

Dichte

1.15 g/mL at 25 °C (lit.)

SMILES String

[H+].[F-]

InChI

1S/FH/h1H

InChIKey

KRHYYFGTRYWZRS-UHFFFAOYSA-N

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Allgemeine Beschreibung

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]

Anwendung

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]

Rechtliche Hinweise

PURANAL is a trademark of Honeywell Specialty Chemicals Seelze GmbH

Piktogramme

Skull and crossbonesCorrosion
GHS06,GHS05

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A

Lagerklassenschlüssel

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SZBG187PV
SZBG130AV
SZBG079PV
SZBF215PV
SZBF038EV

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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
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
Nicolas Vodovar et al.
JACC. Heart failure, 3(8), 629-636 (2015-08-08)
This study sought to hypothesize that elevated B-type natriuretic peptide (BNP) could act as an endogenous neprilysin inhibitor. A hallmark of acute decompensated heart failure (ADHF) is the overproduction of natriuretic peptides (NPs) by stretched cardiomyocytes. Various strategies have been
Philip J Millar et al.
Circulation, 131(5), 459-468 (2014-12-04)
Muscle sympathetic activation in heart failure with reduced ejection fraction (HFrEF) has been attributed, on the basis of multiunit recordings, to attenuated inhibitory feedback from stretch-sensitive cardiopulmonary mechanoreceptors. However, such preparations integrate 2 populations of single units exhibiting directionally opposite
Xianfen Wang et al.
Nature communications, 6, 6544-6544 (2015-04-04)
High-power Na-ion batteries have tremendous potential in various large-scale applications. However, conventional charge storage through ion intercalation or double-layer formation cannot satisfy the requirements of such applications owing to the slow kinetics of ion intercalation and the small capacitance of
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