Hydrofluoric acid

Hydrofluoric acid—also known as fluohydric acid—is an aqueous solution of hydrogen fluoride gas. It is a weak acid that appears as a clear, colorless liquid with a strong, pungent odor. It is extremely corrosive and capable of attacking metals, glass, and silicon-containing substances, such as quartz.

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Introduction

DESCRIPTION

Hydrofluoric acid
Hydrofluoric acid—also known as fluohydric acid—is an aqueous solution of hydrogen fluoride gas. It is a weak acid that appears as a clear, colorless liquid with a strong, pungent odor. It is extremely corrosive and capable of attacking metals, glass, and silicon-containing substances, such as quartz.
Because hydrofluoric acid has the ability to dissolve oxides, it plays an important role in the purification of aluminum and uranium. It is also used for glass etching—for instance, to engrave patterns—and is employed in the semiconductor industry to remove oxides from silicon surfaces. In oil refineries, it serves as a catalyst for alkylation reactions, and it is also used in "pickling" processes to remove oxygen-containing impurities from the surfaces of stainless steel. Furthermore, hydrofluoric acid is utilized in the synthesis of various fluorine-containing organic compounds. Due to its highly corrosive nature, inhaling its vapors or allowing it to come into contact with the skin can cause severe burns, potentially leading to deep-tissue damage and, in serious cases, even posing a threat to life.
Product Introduction

Foreign name	Hydrofluoric acid
Chemical formula	HF
Molecular weight	20.01
CAS login number	7664-39-3
EINECS login number	236-655-5
Fusing point	-35℃
Boiling point	120℃
Purity:	40%,50%, 55%,60%,70%
Appearance	colorless solution
Security description	S：（1/2）-7/9-26-36/37/39-45
Hazard symbol	R:26/27/28-35
UN Dangerous Goods number	1790
MDL number	MFCD00011324

Main features of our company
1. Reasonable price, stable quality and short delivery time
2. According to the policies of different countries, timely follow up orders and arrange shipments, and provide complete customs clearance documents
3. Can notify customers of market price trends in a timely manner
4. Any inquiry will be replied within 12 hours

Packaging and Delivery
Packing in 25KG/DRUM, 235KG/DRUM, or 1150KG/IBC DRUM.

Specification

ITEM	HF40%	HF50%	HF55%	HF60%	HF70%
Hydrogen Fluoride (HF), % ≥	40.00	50.00	55.00	60.00	70.00
Fluorosilicic Acid (H₂SiF6), % ≤	0.05	0.05	0.05	0.05	0.05
Non-volatile Acid (H₂SO₄), % ≤	0.08	0.08	0.08	0.08	0.08

Product application
1.Glass Etching & Processing‌
Hydrofluoric acid reacts with silicon dioxide to produce soluble silicon tetrafluoride,widely used for etching patterns/textures on glass surfaces and industrial impurity cleaning.
2. ‌Metal Treatment‌ Surface Cleaning‌ & Electroplating‌
Hydrofluoric acid used in removing oxides, rust, and contaminants from metals (steel, copper, aluminum) to enhance material performance.
Adjusts solution pH and promotes metal dissolution for optimized electroplating.
3.‌Fluorinated ‌Chemical Synthesis‌
Hydrofluoric acid used in Producing fluorides (e.g., NaF, KF), PTFE, and refrigerants for corrosion-resistant coatings and industrial materials.
4.Petrochemical industry ‌
Hydrofluoric acid as an alkylation reaction catalyst, it promotes the efficient conversion of petroleum components and improves fuel quality and output
5. ‌Specialized Applications‌
‌Solid HF :‌Powdered form replaces liquid acid for efficient scale removal in equipment maintenance.
6.Stainless steel and aluminium production
Hydrofluoric acid used in emoving dirt from the surface of stainless steel, restore the finish of stainless steel.

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