Liquid CO₂ — versatile liquefied carbon dioxide
Liquid CO₂ from REAL GAZ is carbon dioxide stored under pressure as a liquid, which allows a large quantity of gas to be carried in a single cylinder or vessel.
When it is released it expands into gas and, if allowed to, forms solid dry ice at −78.5 °C, which makes it a useful coolant as well as a process gas.
When it is released it expands into gas and, if allowed to, forms solid dry ice at −78.5 °C, which makes it a useful coolant as well as a process gas.
The product is supplied with reference to EN 13458 and ISO 21029 for cryogenic vessels and EN ISO 9809 for cylinders, for industrial and food use.
🏭 Where Liquid CO₂ Is Used
- ⚙️ Beverage carbonation — soft drinks, beer and sparkling water are carbonated with liquid CO₂ drawn from cylinders or tanks;
- 🔬 Welding shielding — CO₂ and CO₂/argon mixtures protect the weld pool in MAG welding of carbon steel;
- 🏥 Water treatment — CO₂ lowers pH more safely than mineral acids when neutralising alkaline water;
- 🚀 Cooling and chilling — expanding liquid CO₂ chills food products and produces dry ice for cold-chain transport.
📦 Liquid CO₂: Grades, Cylinders & Handling
Carbon dioxide exists as a liquid only above its triple point pressure of 5.2 bar, and a cylinder at 20 °C contains liquid and gas in equilibrium at roughly 57 bar. The critical point is 31 °C, so cylinders must not be left in hot places. Standard cylinders are filled to an ADR-approved filling ratio, and 40 kg and similar sizes are common. When high flow is drawn from a cylinder the expansion chills the regulator, so a heater is fitted to prevent freezing. Technical, food and higher purity grades are available, and the correct choice depends on the end use. Our staff can advise on cylinder numbers, regulators and flowmeters for your application.
💡 Why Choose REAL GAZ
- ✅ Compact storage — the liquid form delivers many cubic metres of gas from one cylinder;
- 🧪 Several quality levels — technical and food-oriented grades can be selected according to purpose;
- 🎯 Reliable service — scheduled exchanges keep production lines running without interruption;
- 🔒 Hands-on advice — we help with regulators, heaters, hoses and flow settings for your equipment;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- purification and drying of source gas;
- analysis of purity, moisture and trace contaminants;
- filling by weight within ADR limits;
- leak testing and valve checks.
CO₂ displaces oxygen in confined spaces, so good ventilation and monitoring are essential. Cylinders comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies carbon dioxide to breweries, welding shops, water utilities and food plants in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Whatever your volume, our team will help you choose between cylinders and bulk supply, so that liquid CO₂ arrives on time and in the right condition.
REAL GAZ — carbon dioxide made practical.