Description

Hydrogen Fluoride 37 % CAS NO 7360-26-1 is a concentrated aqueous solution of hydrofluoric acid, a key inorganic chemical intermediate. This product is essential for its unique ability to react with silica and silicates, making it indispensable for etching, cleaning, and surface treatment processes across multiple high-tech industries. It is a critical raw material for manufacturers in electronics, petrochemicals, glass processing, and specialty chemical synthesis who require a reliable, high-purity source of fluoride ions.

Application

• Semiconductor & Microelectronics Manufacturing: Used for etching silicon wafers, cleaning quartz and glass components, and removing oxide layers.
• Glass & Ceramics Industry: Essential for frosting, etching, and polishing glass surfaces, as well as in the production of opalescent glass.
• Petrochemical Catalyst Regeneration: Employed in alkylation processes and for the regeneration of catalysts used in oil refining.
• Metal Surface Treatment: Acts as a pickling and cleaning agent for stainless steel and other alloys to remove oxide scale.
• Fluorochemical Synthesis: Serves as a primary feedstock for manufacturing a wide range of fluorinated compounds, including refrigerants, pharmaceuticals, and agrochemicals.
• Laboratory & Analytical Chemistry: Used as a reagent for digesting silicate-based samples and in various analytical procedures.

Basic Information

Product Name	Hydrogen Fluoride 37 %
CAS No.	7360-26-1
Molecular Formula	HF (in H₂O)
Molecular Weight	20.01 g/mol (HF)
Synonyms	Hydrofluoric Acid 37%; Aqueous Hydrofluoric Acid; HF Solution; Fluorohydric Acid; Fluoric Acid; Hydrogen Fluoride Solution; Etching Acid; CAS 7664-39-3 (for anhydrous HF)
EINECS	231-634-8

Quality Control

Our Hydrogen Fluoride 37% is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. Production adheres to relevant industrial and safety standards. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing key parameters such as assay, metallic impurities, and sulfate content to meet the exacting requirements of our global clientele.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area, away from direct sunlight and heat sources. Containers must be made of compatible materials such as polyethylene or fluorinated polymers. Due to its highly corrosive nature and reactivity as a strong acid, it must be stored separately from strong bases, metals, and glass. Keep container tightly sealed when not in use to minimize fume release and moisture absorption.

Specification

Item	Specification
Appearance	Colorless, clear liquid
Assay (as HF)	36.5 - 38.0 % w/w
Identification (IR)	Conforms
Residue on Ignition	≤ 0.01 %
Sulfate (SO₄)	≤ 0.001 %
Fluorosilicic Acid (H₂SiF₆)	≤ 0.05 %
Iron (Fe)	≤ 0.0005 %
Heavy Metals (as Pb)	≤ 0.0005 %

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