Description

Hydrofluoric Acid CAS NO 32057-09-3 is a highly reactive and corrosive inorganic acid, a critical precursor and etchant in advanced manufacturing. Its unique ability to dissolve silica and silicates makes it indispensable for processes requiring precision etching and surface treatment. This material is essential for industries including semiconductor fabrication, glass manufacturing, and petroleum alkylation catalysts.

Application

• Semiconductor Manufacturing: Primary etchant for silicon wafers and for cleaning quartz and ceramic components in chip fabrication.
• Glass & Ceramics Industry: Used for etching, frosting, and polishing glass, as well as in the production of opalescent glass and ceramic glazes.
• Petrochemical Refining: Key catalyst in alkylation units for producing high-octane gasoline blending components.
• Metal Treatment & Pickling: Employed for pickling stainless steel and other alloys to remove oxide layers and for surface passivation.
• Fluorochemical Synthesis: Fundamental raw material for manufacturing a wide range of fluorinated compounds, including refrigerants, pharmaceuticals, and agrochemicals.
• Laboratory & Analytical Chemistry: Used in mineral digestion for analysis and in specialized organic synthesis reactions.

Basic Information

Product Name	Hydrofluoric Acid
CAS No.	32057-09-3
Molecular Formula	HF
Molecular Weight	20.01 g/mol
Synonyms	Hydrogen Fluoride; Fluorohydric Acid; Fluoric Acid; HF Acid; Anhydrous Hydrofluoric Acid; AHF; UN 1052 (anhydrous); UN 1790 (solution)
EINECS	Contact for details

Quality Control

Our Hydrofluoric Acid is manufactured under stringent process controls to ensure consistent purity and performance. Quality is verified through a comprehensive battery of analytical tests, including assay by titration and impurity profiling. A Certificate of Analysis (COA) is provided with each batch, detailing compliance with agreed specifications. We support customer audits and can provide material to meet the requirements of various industrial and electronic grade standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area, away from direct sunlight and incompatible materials such as strong alkalis, metals, and glass. Due to its highly volatile and corrosive nature, containers must be kept upright and sealed. Storage temperature should be maintained below 25°C (77°F). Use only containers made of compatible materials (e.g., specific plastics like polyethylene or fluoropolymers).

Specification

Item	Specification
Appearance	Colorless liquid or gas
Identification (IR)	Conforms
Assay (HF)	≥ 99.9%
Water Content	≤ 0.05%
Sulfate (SO₄)	≤ 10 ppm
Fluorosilicic Acid (H₂SiF₆)	≤ 0.01%
Non-Volatile Matter	≤ 0.01%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.