Lawrence Haynes | 3 minutes | 07/30/2025

What Is the Temperature of Liquid Helium?

The temperature of liquid helium is -268.93°C (4.2 Kelvin), which makes it the coldest liquid on Earth. This temperature is just 4.2 degrees above absolute zero, the lowest theoretically possible temperature in our universe. Why Does Liquid Helium Have Such an Extreme Temperature? Liquid helium reaches -268.93°C because helium atoms have the weakest intermolecular forces …

Lawrence Haynes | 4 minutes | 07/29/2025

Is Krypton Flammable?

Krypton is not flammable – as a noble gas, it’s chemically inert and does not support combustion under normal conditions. In this guide, you’ll learn exactly why this is the case. We’ll explore: WestAir supplies krypton across California and Arizona. Krypton’s Chemical Properties and Flammability Status Krypton is completely non-flammable and will not burn under any ordinary …

Tyler O'Brien | 7 minutes | 07/29/2025

What Is Oxyfuel Cutting?

Oxyfuel cutting is a thermal cutting process that uses oxygen and fuel gas to cut through metals, mainly carbon steel. It works by preheating metal to ignition temperature and then using a stream of pure oxygen to rapidly oxidize the material, creating a precise cut. For a complete overview of this process, this guide will …

Tyler O'Brien | 4 minutes | 07/28/2025

What Is Medical Nitrogen Used For?

Medical nitrogen is mainly used in cryotherapy, preservation of biological samples, powering surgical tools, and preventing oxidation in pharmaceutical packaging. In this guide, we’ll explore these applications of medical nitrogen in more detail to show you why it remains an essential gas in modern medicine. WestAir supplies nitrogen across California and Arizona. Cryotherapy and Dermatological Treatments Liquid …

Tyler O'Brien | 3 minutes | 07/28/2025

Is Helium Running Out?

Helium is not running out anytime soon, but the world faces significant long-term supply challenges that could impact availability in the coming decades. While new reserves continue to be discovered and production methods improve, the finite nature of this non-renewable resource combined with growing demand creates genuine concerns about future accessibility. In this guide, we’ll …

Lawrence Haynes | 6 minutes | 07/25/2025

How Does a Liquid Nitrogen Freezer Work?

A liquid nitrogen freezer works by using the extremely cold temperature of liquid nitrogen (-196°C/-320°F) to rapidly freeze and maintain samples through heat absorption during evaporation. When liquid nitrogen changes from liquid to gas, it absorbs significant heat energy from its surroundings, creating an ultra-cold environment ideal for preservation.  In this article, we’ll explore the …

Tyler O'Brien | 3 minutes | 07/25/2025

Why Is Ammonia Used in Refrigeration?

Ammonia is used in refrigeration because it’s one of the most efficient and environmentally friendly refrigerants available. It offers superior cooling performance while being cost-effective for industrial applications. This natural refrigerant has been a cornerstone of industrial cooling systems for over a century, and this guide will explain why this is the case. After going …

Lawrence Haynes | 4 minutes | 07/24/2025

How to Tell If Your CO₂ Tank Is Empty

You can tell if your CO₂ tank is empty by weighing it against the stamped tare weight, monitoring pressure gauge readings, or observing operational symptoms like weak gas flow. The most reliable method involves subtracting the tank’s tare weight from its current weight to calculate remaining CO₂. In this guide, we’ll explore these methods for …

Tyler O'Brien | 4 minutes | 07/24/2025

What Is Supercritical CO2?

Supercritical CO2 is carbon dioxide held at or above its critical temperature (31.1°C) and critical pressure (73.8 bar), where it behaves as both a gas and a liquid. In this state, it has high solvating power and is used in processes like decaffeination, extraction, and cleaning. In this article, you’ll learn the science behind how …

Nick Vasco | 6 minutes | 07/23/2025

What Does the Process of Hydrogenation Do?

Hydrogenation adds hydrogen atoms to unsaturated compounds, converting double or triple bonds into single bonds in the presence of a catalyst. This reaction plays a crucial role across industries, from food production to pharmaceuticals and petroleum refining. Industrial gas users and manufacturers must understand hydrogenation to optimize production processes and ensure quality control. To help, …

Lawrence Haynes | 3 minutes | 07/23/2025

What Is Ammonia Used For?

Ammonia has numerous applications, from agricultural fertilizers to refrigeration systems. It also plays crucial roles in manufacturing, food production, and water treatment processes. This guide explores ammonia’s many use cases on a more granular level to show you exactly how this compound is used across industries. We’ll then go over the key safety considerations regarding …

Tyler O'Brien | 7 minutes | 07/22/2025

How Does Atomic Absorption Spectroscopy Work?

Atomic absorption spectroscopy (AAS) works by measuring the concentration of elements in a sample through the absorption of light by atoms in the gas phase. This invaluable analytical technique is used for elemental analysis across numerous industries, from environmental monitoring to pharmaceutical testing. When specific wavelengths of light pass through a cloud of atoms, some …