Lawrence Haynes | 4 minutes | 07/17/2025

Where Does Helium Come From?

Helium comes from two main sources: cosmic nucleosynthesis during the Big Bang and radioactive decay of uranium and thorium within the Earth’s crust. However, the helium we use on Earth comes almost entirely from underground deposits formed by radioactive decay – not from the helium produced during the Big Bang.  In this article, we’ll explore …

Tyler O'Brien | 3 minutes | 07/17/2025

What Is Gas Chromatography Used For?

Gas chromatography is used to separate, identify, and measure different compounds within a mixture. This versatile technique serves numerous industries, from pharmaceutical manufacturing to environmental monitoring. This guide outlines the main use cases of gas chromatography to show you how widespread this method is. We’ll then go over some of the most compelling benefits that …

Tyler O'Brien | 3 minutes | 07/17/2025

Can You TIG Weld with 75% Argon and 25% CO2? 

No, you should not TIG weld with 75% Argon and 25% CO2 because the CO2 creates oxidation, spatter, and unstable arc conditions that compromise weld quality. Using 100% argon is recommended for TIG welding most materials.    Below, we go into more detail on why you should not TIG weld with 75% Argon/25% CO2 and alternatives …

Tyler O'Brien | 4 minutes | 07/17/2025

What Is the Best Gas for TIG Welding Stainless Steel?

The best gas for TIG welding stainless steel is generally 100% argon. It provides a stable arc, clean welds, and excellent shielding with minimal spatter. However, there are specific situations where pure argon may not be your best option for TIG welding stainless steel.  Below, we will explore when to use pure argon – and …

Lawrence Haynes | 3 minutes | 07/17/2025

Can You MIG Weld with 100% Argon?

Yes, 100% argon can be used for MIG welding, but only for specific applications like aluminum and nonferrous metals. Using 100% argon for MIG welding steel is generally not recommended because it produces weak, brittle welds with poor penetration.  Below, we will discuss: Why Can’t Pure Argon Be Used for MIG Welding Steel? Using pure …

Tyler O'Brien | 3 minutes | 07/17/2025

CO2 vs Argon for MIG Welding Steel

For MIG welding steel, a mix of argon and CO₂ generally delivers the best overall results, combining the clean arc of argon with the deeper penetration and lower cost of CO₂. But the ideal amounts of argon and CO₂ in the mixture depends on the application – and sometimes pure CO₂ makes more sense. Here’s …

Lawrence Haynes | 5 minutes | 07/16/2025

Is Sulfur Hexafluoride a Greenhouse Gas?

Yes, sulfur hexafluoride (SF6) is a greenhouse gas – and it’s the most potent one known to science. This colorless, odorless gas has an extraordinary impact on global warming, which is why many commercial users are looking for ways to mitigate its negative effects. In this guide, you’ll learn what makes SF6 such a powerful …

Lawrence Haynes | 3 minutes | 07/16/2025

Is Carbon Monoxide Flammable?

Yes, carbon monoxide (CO) is highly flammable. This colorless, odorless gas burns with a distinctive violet flame and has significant flammability limits between 12.5% and 74.2% concentration in air. This guide explores carbon monoxide’s flammability in more detail. You’ll learn about its properties, applications, and safety guidelines to follow. Understanding Carbon Monoxide’s Flammability Properties Carbon …

Lawrence Haynes | 4 minutes | 07/15/2025

Does Propane Go Bad?

Propane does not go bad or expire over time. As a gas stored in pressurized tanks, propane remains stable indefinitely if the container is in good condition and free from leaks or rust. Properly stored propane can last for decades without losing effectiveness. That said, the tanks that store propane do have expiration dates and …

Lawrence Haynes | 4 minutes | 07/14/2025

Is Propane Flammable?

Propane is highly flammable when in its gaseous state – it can ignite at concentrations between 2.1% and 9.6% in air and burns at temperatures over 3,500°F (1,927°C). However, liquid propane (LPG) stored under pressure is not flammable until it vaporizes into gas. In this guide, we’ll explore propane’s flammability characteristics. You’ll also learn about …

Tyler O'Brien | 3 minutes | 07/11/2025

Can CO₂ Tanks Explode?

CO₂ tanks can explode if exposed to extreme heat, physical damage, or over-pressurization. While these incidents are relatively rare, they can result in serious injuries, property damage, and even fatalities. In this guide, we’ll explore the main causes of CO₂ tank explosions. We’ll also show you some real-world incidents that highlight these risks and discuss …

Tyler O'Brien | 5 minutes | 07/10/2025

Why Do Rockets Use Hydrogen Fuel?

Rockets use hydrogen fuel because it delivers the highest specific impulse (efficiency) of any chemical propellant, producing more thrust per pound than any other fuel. In this guide, we’ll explore why hydrogen has become the preferred fuel for many space missions. You’ll learn why its unique properties make it indispensable for modern rocketry. Unmatched Energy …