A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... Molar mass is the mass of one mole of a chemical element or chemical compound. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... Density (symbol: ρ - Greek: rho) is a measure of mass per volume. ... In the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. ... It has been suggested that this article or section be merged with Solution. ... Water is an odourless substance that is essential to all known forms of life and is known as the universal solvent. ... The melting point of a crystalline solid is the temperature at which it changes state from solid to liquid. ... In chemistry and physics, Vapor pressure is the pressure of a vapor in equilibrium with its non-vapor phases. ...

Discovery

The discovery of this first argon compound is credited to as group of Finnish scientists, lead by Markku Rasanen. In the journal Nature, 24 August 2000, they announced their discovery of argon fluorohydride. General Name, Symbol, Number argon, Ar, 18 Chemical series noble gases Group, Period, Block 18, 3, p Appearance colorless Atomic mass 39. ... Nature is one of the oldest and most reputable general-purpose scientific journals, first published on November 4, 1869. ...

Synthesis

This chemical was sythesized by mixing argon and hydrogen fluoride on to caesium iodide at −265 °C and exposing the mixture to ultraviolet radiation. This causes the gases to react to form argon fluorohydride. Hydrogen fluoride is the chemical compound with the formula HF. It is the only fluoride of hydrogen. ... Caesium iodide is an ionic compound often used as the input phosphor of an x-ray image intensifier tubes found in Fluoroscopy equipment. ...

Examining the infrared spectrum of the substance, they found that chemical bonds had formed, albeit very weak ones, so long as the substance was kept at temperatures below −256°C. Upon warming it decomposes into argon and hydrogen fluoride. IR spectrum of a thin film of liquid ethanol. ...

References

1. John Emsley's Nature's Building Blocks.