Specialty Gas Ar-CO₂ — specialty argon-carbon dioxide mixtures for demanding duties
Specialty Gas Ar-CO₂ covers argon and carbon dioxide mixtures made beyond the everyday shielding-gas grades, where the carbon dioxide fraction, the base-gas purity and the certification all need to be defined.
REAL GAZ prepares these mixtures to order, using high purity argon and carbon dioxide of food or analytical quality as the starting materials.
REAL GAZ prepares these mixtures to order, using high purity argon and carbon dioxide of food or analytical quality as the starting materials.
Mixtures follow ISO 6142 preparation methods and ISO 6143 analytical comparison, with reference materials handled according to ISO 17034 principles for research and industrial customers.
Most specialty orders fall into three families: low-level CO₂ in argon for analytical calibration, mid-range mixtures between 2% and 10% CO₂ for controlled-atmosphere processes, and high-level blends of 15% to 25% for specialised fabrication. Each family has its own cylinder preparation and purity requirement, so the order form asks about the end use, the required tolerance, the regulator material and the expected flow. Aluminium cylinders are preferred for low-level calibration work because their interior surfaces hold concentrations steadily, whereas steel cylinders suit larger volumes.
When a mixture is required for a research project, REAL GAZ can also prepare a short series of cylinders at neighbouring concentrations so that a calibration curve or a sensitivity study can be completed from a single order, with all certificates referencing the same method.
🏭 Where Argon-CO₂ Specialty Mixtures Are Used
- 🔬 Environmental monitoring — reference gas for stack and ambient emission analysers measuring CO₂ against an argon or nitrogen background;
- 🏭 Specialty metal fabrication — controlled atmospheres for stainless and duplex steels where heat-affected zone quality matters;
- 🍺 Beverage and food technology — test mixtures used when validating carbonation, packaging-atmosphere and leak-detection equipment;
- 🚀 Aerospace and materials testing — defined gas environments for coating, sintering and corrosion trials that need repeatable conditions.
💡 Why Choose REAL GAZ
- ✅ Made to order — the CO₂ fraction, tolerance and cylinder size are agreed with you before filling begins;
- 🧪 Clean raw materials — argon and CO₂ are drawn from controlled sources, then passed through purification before blending;
- 🎯 Technical support — engineers advise on concentration, regulator material and delivery pressure for your application;
- 🔒 Consistent repeat batches — a documented recipe lets you reorder the same specification months later.
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- purity screening of argon and CO₂ feedstock;
- gravimetric blending with documented weights;
- analysis of moisture, oxygen and hydrocarbons;
- leak testing of valves and cylinder necks.
Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
Whether the requirement is a single cylinder for a laboratory or a regular schedule for a production line, Specialty Gas Ar-CO₂ from REAL GAZ is prepared with the same discipline. We supply customers across Azerbaijan, Turkey, Georgia, Uzbekistan and the USA, and can match the specification to local regulator and fitting standards so that the cylinder connects without adapters.
REAL GAZ — Specialty mixtures, specified your way.