1.00337

Hydrofluoric acid

38-40%, EMPLURA^®

• Synonym(s): Hydrofluoric acid, Hydrofluoric acid solution, Fluoric acid, HF
• Linear Formula: HF
• CAS Number: 7664-39-3
• Molecular Weight: 20.01
• UNSPSC Code: 12352301
• NACRES: NA.21
• MDL number: MFCD00011346
• Concentration: 38-40% Hf
• Form: liquid

Properties

• Product Name: Hydrofluoric acid 38-40%, EMPLURA^®
• Quality Segment: 200
• vapor density: 1.27 (vs air)
• vapor pressure: 25 mmHg ( 20 °C)
• product line: EMPLURA^®
• form: liquid
• concentration: 38-40% Hf
• impurities: ≤0.0005% Heavy metals (as Pb), ≤0.001% Fe (Iron), ≤0.001% Sulfate (SO₄), ≤0.002% Chloride (Cl), ≤0.002% Sulfite (SO?), ≤0.01% Hexafluorosilicate (SiF₆)
• ign. residue: ≤0.002% (as sulfate)
• pH: 2 (20 °C in H₂O)
• mp: -44 °C
• density: 1.13 g/cm³ at 20 °C, 1.15 g/mL at 25 °C (lit.)
• storage temp.: 2-30°C
• SMILES string: [H+].[F-]
• InChI: 1S/FH/h1H
• InChI key: KRHYYFGTRYWZRS-UHFFFAOYSA-N

Description

Analysis Note

Assay (acidimetric): 38 - 40 %
Fe (Iron): ≤ 0.001 %
Chloride (Cl): ≤ 0.002 %
Hexafluorosilicate (SiF₆): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.001 %
Sulfite (SO₃): ≤ 0.002 %
Heavy metals (as Pb): ≤ 0.0005 %
Residue on ignition (as sulfate): ≤ 0.002 %

Other Notes

Replaces: 100339

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Signal Word: Danger
• Precautionary Statements: 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
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• Pictograms: GHS06,GHS05
• Hazard Codes: H300 + H310 + H330,H314
• Storage Class: 6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials