Dry Ice Blocks — dense, slow-subliming solid CO₂ for long cooling jobs
Dry Ice Blocks from REAL GAZ are pressed slabs of solid carbon dioxide with high density and a low surface area compared with pellets.
That structure makes them sublime slowly, so they hold temperature for much longer in insulated boxes.
That structure makes them sublime slowly, so they hold temperature for much longer in insulated boxes.
Blocks are packed and documented under ADR rules for UN 1845, and the carbon dioxide used follows EN 1964 filling practice and food-grade specifications where required.
A standard block weighs around 10 kg, and larger industrial slabs reach 25 kg, though cut pieces are available for smaller boxes. If you need Dry Ice Blocks for a 48-hour shipment, place the block on top of the load, as cold air sinks, and leave room for gas to escape because sealed containers can burst. In theatres and events, blocks drop into warm water to create low fog, while laboratories break them into chips for cooling baths with acetone or alcohol to reach minus 78 °C. We advise on thickness, insulation and quantity for each task, so you neither run short nor over-order.
A few simple habits extend life. Wrap the block in paper to slow surface sublimation, fill air gaps in the box with crumpled paper, and keep the lid closed except when needed. For fog effects, use hot water in a tub with a loose cover, and keep the area ventilated so that guests do not breathe concentrated carbon dioxide.
A few simple habits extend life. Wrap the block in paper to slow surface sublimation, fill air gaps in the box with crumpled paper, and keep the lid closed except when needed. For fog effects, use hot water in a tub with a loose cover, and keep the area ventilated so that guests do not breathe concentrated carbon dioxide.
🏭 Where Dry Ice Blocks Are Used
- 📦 Long-distance shipping — dense blocks keep biological and food shipments frozen across multi-day routes;
- 🎭 Stage and event fog — blocks in warm water produce low-lying white fog for theatre and weddings;
- 🧫 Laboratory cooling baths — crushed blocks with solvents give a stable minus 78 °C bath for reactions;
- 🐟 Seafood and fresh produce — blocks protect the cold chain from harbour to retail market.
💡 Why Choose REAL GAZ
- ✅ Slow sublimation — low surface area extends cooling time per kilogram;
- 🧪 Food-grade option — blocks made from food-quality CO₂ are available for contact use;
- 🎯 Cut to size — slabs can be cut to fit your box or cooler;
- 🔒 Safe handling guide — gloves, ventilation and storage rules are included with orders;
- 📄 Certificate of Analysis (CoA) — supplied with every order.
🔬 Quality Control & Safety
- multi-stage purification of the feed CO₂;
- precision weighing of each block;
- moisture & impurity analysis;
- insulated packaging and venting checks.
Cylinders and packaging comply with ADR / UN transport rules and relevant EN/ISO standards.
⚙️ Trusted Gas Solutions
REAL GAZ supplies Dry Ice Blocks to shippers, caterers, event companies and laboratories in Azerbaijan, Turkey, Georgia, Uzbekistan and the USA. Tell us the box size and trip length, and we will propose a block weight that keeps your cargo cold on arrival.
REAL GAZ — solid blocks, steady cold.