It is colorless and odorless gas under usual temperature and pressure. Pure liquid CO₂ is colorless and transparent; density is 1.1kg/cm3(-37); stable chemical property, uninflammable, soluble in water; when lower than -56.4, it will transform into solid, usually called "dry ice".

It is widely used in food industry, metallurgical, melting, fruit and vegetable preserving, pharmaceuticals and also as fertilizer.

Specifications:

Industrial grade CO₂

• CO₂ 99.8%
• Moisture 0.005%
• Smell odorle

Food grade CO₂

• CO₂ 99.5%
• Moisture 0.2%
• SO₃ negative
• CO, sulfide negative
• Phosphide negative
• Oil content negative
• Acid value qualified
• Smell odorless