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Merck
CN

30107

Sigma-Aldrich

氢氟酸

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥48%

别名:

HF

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About This Item

经验公式(希尔记法):
HF
CAS号:
分子量:
20.01
EC 号:
MDL编号:
UNSPSC代码:
12352106
PubChem化学物质编号:
NACRES:
NA.21

等级

ACS reagent
puriss. p.a.

质量水平

Agency

reag. ISO
reag. Ph. Eur.

蒸汽密度

1.27 (vs air)

蒸汽压

25 mmHg ( 20 °C)

方案

≥48%

表单

liquid

杂质

≤0.005% hexafluorosilic acid (H2SiF6)

灼烧残渣

≤0.0005% (as SO4)

密度

1.15 g/mL at 25 °C (lit.)

痕量阴离子

chloride (Cl-): ≤1 mg/kg
phosphate (PO43-): ≤0.5 mg/kg
sulfate (SO42-): ≤2 mg/kg
sulfite (SO32-): ≤2 mg/kg

痕量阳离子

Ag: ≤0.02 mg/kg
Al: ≤0.05 mg/kg
As: ≤0.05 mg/kg
Ba: ≤0.1 mg/kg
Be: ≤0.02 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.01 mg/kg
Co: ≤0.02 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.2 mg/kg
Ge: ≤0.05 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.02 mg/kg
Mg: ≤0.2 mg/kg
Mn: ≤0.05 mg/kg
Mo: ≤0.05 mg/kg
Na: ≤0.2 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.05 mg/kg
Sr: ≤0.02 mg/kg
Ti: ≤0.1 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.05 mg/kg
Zn: ≤0.05 mg/kg
Zr: ≤0.1 mg/kg

SMILES字符串

[H+].[F-]

InChI

1S/FH/h1H

InChI key

KRHYYFGTRYWZRS-UHFFFAOYSA-N

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一般描述

氢氟酸(HF)是一种强无机酸,通常用作生产有机氟化合物和无机氟化物的氟源。它也用作有机合成中的脱保护试剂。此外,它还用于在酸性溶液中断裂强 Si-O 键以形成 SiF6− 2 离子。

应用


  • Speciation of tin ions in oxide glass containing iron oxide through solvent extraction and inductively coupled plasma atomic emission spectrometry after the decomposition utilizing ascorbic acid.: This study explores the speciation of tin ions in iron oxide-containing glass, utilizing ascorbic acid for decomposition followed by solvent extraction and analysis via inductively coupled plasma atomic emission spectrometry, highlighting a novel analytical chemistry application of hydrofluoric acid (Saijo Y et al., 2022).

  • Physicochemical and morphological characterization of a glass ceramic treated with different ceramic primers and post-silanization protocols.: This paper discusses the effects of various ceramic primers and silanization protocols on the physicochemical properties and morphology of glass ceramics, contributing to analytical chemistry by elucidating the interactions and stability of treated surfaces (Moreno MBP et al., 2019).

  • Effect of Surface Cleaning Regimen on Glass Ceramic Bond Strength.: Investigates the impact of different surface cleaning regimens, including the use of hydrofluoric acid, on the bond strength of glass ceramics, providing insights into optimal surface treatment methods in material science and analytical chemistry (Lapinska B et al., 2019).

象形图

Skull and crossbonesCorrosion

警示用语:

Danger

危险分类

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

储存分类代码

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

WGK

WGK 2

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

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分析证书(COA)

Lot/Batch Number

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