- Part 10

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How Argon Fluoride Excimer Lasers Work

The lasing action in argon fluoride excimer lasers arises through the following process: Electric discharge passes through the Ar/F2 gas mix, creating Ar+ ions and electrons. Accelerated electrons collide with and excite argon atoms. Excited argon atoms Ar* react with fluorine molecules to form the excimer ArF* in an excited st...
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Introduction to Argon Fluoride Excimer Laser Gas

Argon fluoride (ArF) is an excimer gas mixture used widely in deep ultraviolet excimer lasers. The term ‘excimer’ refers to the excited dimer state formed temporarily between an inert noble gas and a reactive halogen component. Some key properties: Composition – Typically contains 0.1% F2 and 99.9% argon ...
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Industrial Production Methods for Boron Trifluoride

Owing to its hazards, boron trifluoride gas is never isolated in nature, but is produced industrially from various BF3-containing precursors. There are two main production routes: Fluorination of Boron Oxides – Boron oxide reacts with anhydrous hydrogen fluoride at 250-500°C to replace oxygen with fluorine. Various boron oxid...
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Chemical Reactivity and Uses of Boron Trifluoride

Boron trifluoride is notable for its strong Lewis acidity which makes it highly reactive with compounds having lone electron pairs. This property allows BF3 to serve several industrial chemical roles: Fluorination agent – BF3 assists in replacing C-H bonds with C-F bonds in organic precursor compounds. This fluorination produc...
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Introduction to the Properties of Boron Trifluoride

Boron trifluoride, with the chemical formula BF3, is an inorganic boron compound consisting of boron bound to three fluorine atoms in a trigonal planar molecular geometry. Here are some key properties of this colorless gas: At standard temperature and pressure, BF3 is a non-flammable diatomic gas. It condenses to a liquid at -100°C...
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Emerging Uses and Applications of Carbon Tetrafluoride

While carbon tetrafluoride has well-established uses as a dielectric gas and plasma etchant, emerging applications continue to take advantage of its unique properties: precursor for fluoropolymer synthesis – CF4 plasma aids deposition of protective fluorocarbon polymer films and powders nuclear fuel conversion – CF4 ca...
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Production Methods for Carbon Tetrafluoride

Carbon tetrafluoride is a completely anthropogenic compound that does not occur naturally. There are two primary industrial synthesis routes to producing CF4: Direct Fluorination – This involves reacting elemental carbon with excess elemental fluorine gas at high temperatures of 300-400°C. It directly replaces all hydrogen atoms i...
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16Oct.2023

Toxicity and Environmental Profile of Carbon Tetrafluoride

While highly useful industrially, carbon tetrafluoride has some negative environmental and health attributes that must be considered responsibly: In its normal gaseous form, CF4 poses little acute toxicity hazard for humans. However, in confined spaces it acts as a simple asphyxiant by displacing breathable oxygen. Long-ter...