339261

Hydrofluoric acid

48 wt. % in H₂O, ≥99.99% trace metals basis

• 동의어(들): HF
• 실험식(Hill 표기법): HF
• CAS Number: 7664-39-3
• Molecular Weight: 20.01
• MDL number: MFCD00011346
• UNSPSC 코드: 12352106
• PubChem Substance ID: 329754538
• NACRES: NA.21

속성

• vapor density: 1.27 (vs air); 1.27 (vs air)
• Quality Level: 200
• vapor pressure: 25 mmHg ( 20 °C)
• 분석: ≥99.99% trace metals basis
• 양식: liquid
• 농도: 48 wt. % in H₂O
• density: 1.15 g/mL at 25 °C (lit.)
• SMILES string: [H+].[F-]
• InChI: 1S/FH/h1H
• InChI key: KRHYYFGTRYWZRS-UHFFFAOYSA-N

설명

일반 설명

Hydrofluoric acid (HF) is the 48% solution of HF in water. It is weakly acidic in nature. Aqueous HF is mostly used in etching silicon in semiconductors and producing inorganic fluoride compounds. HF can also be used as fluorinating and deprotecting agent. As fluorination agent it also forms complexes with organic bases.

애플리케이션

Hydrofluoric acid is used:

• To compose the electrolyte for the synthesis of TiO₂ nanotube arrays.
• As etchant for the glass fibers.
• As capping reagent for the synthesis of anatase TiO₂ nanocrystals/nanosheets.

안전성 정보

• 픽토그램: GHS06,GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H300 + H310 + H330,H314
• 예방조치 성명서: P260 - P270 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Eye Dam. 1 - Skin Corr. 1A
• Storage Class Code: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable