Carbon Dioxide (R744)二氧化碳（R744）

CO₂ · CAS 124-38-9 · UN 1013

High-purity carbon dioxide (R744) — natural refrigerant, widely used in beverage carbonation, food preservation, welding shielding gas and chemical raw materials.高纯二氧化碳（R744）——天然制冷剂，广泛用于饮料充气、食品保鲜、焊接保护气与化工原料。

Chemical Formula化学式CO₂

CAS NumberCAS 号124-38-9

UN NumberUN 编号UN 1013

Sublimation Point (1 atm)升华点（1 atm）−78.5 °C

Packaging包装47L/50L steel cylinders, ISO tank on request

Purity Grade纯度等级≥99.9%

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Product Quality Index产品质量指标

Carbon Dioxide Concentration(Volume Fraction)二氧化碳浓度(体积分数)≥99.9%

Moisture Dew Point (℃)水分露点(℃)≤-65℃

Oil Content油分According to GB/T 6052

Odor气味Odorless无异味

Physical Property物理性质

Component成分Carbon Dioxide二氧化碳

Appearance and Character外观和性状Colorless, odorless gas无色、无味气体

Melting Point (℃)熔点(℃)−56.6 ℃（527kPa）

Sublimation Point (℃)升华点(℃)−78.5 ℃（101.3kPa）

Relative Density (water=1)相对密度(水=1)1.56

Relative Vapor Density (air=1)相对蒸气密度(空气=1)1.53

Saturated Vapor Pressure饱和蒸汽压 1013.25 kPa (-39 ℃) 1013.25千帕（-39 ℃）

Critical Temperature (℃)临界温度(℃)31.3 ℃

Critical Pressure (MPa)临界压力(MPa)7.39 MPa

Solubility溶解度Soluble in water, soluble in most organic solvents such as hydrocarbons溶于水，溶于烃类等多数有机溶剂

Main Use主要用途

Application用途Food & Beverage: carbonated drink charging, food preservation and freezing (dry ice). Industrial Welding: CO₂ shielding gas for MAG welding. Chemical Raw Material: production of urea, carbonate, fire extinguisher filling. Supercritical Extraction: caffeine decaffeination, spice extraction.食品饮料：碳酸饮料充气、食品保鲜冷冻（干冰）。工业焊接：CO₂气体保护焊（MAG焊）。化工原料：生产尿素、碳酸盐、灭火器填充。超临界萃取：咖啡因脱除、香料提取。

Packing Specification包装规格

Package包装47L/50L cylinders, ISO tank on request47L/50L气瓶，可按需提供ISO罐

Hydrocarbon, refrigerant, cryogenic & industrial gas — one supplier.碳氢、制冷剂、深冷与工业气体——一家供应商。

Carbon Dioxide (R744)二氧化碳（R744）

Product Quality Index产品质量指标

Physical Property物理性质

Main Use主要用途

Packing Specification包装规格