Carbon dioxide

Carbon dioxide

Carbon dioxide, a kind of carbon and oxygen compound, has the chemical formula of CO2 and 44.0095 [1]. Under normal temperature and pressure, it is colorless, tasteless [2] or odorless, and its aqueous solution has a slightly sour taste [3]. It is also a common greenhouse gas [4]. It is also one of the components of air (0.03%-0.04% of the total volume of the atmosphere [5]).

1. Product introduction

In terms of physical properties, carbon dioxide has a melting point of -56.6℃(527kPa) and a boiling point of -78.5℃. It is denser than air (under standard conditions) and soluble in water. In terms of chemical properties, the chemical properties of carbon dioxide is not active, high thermal stability (only 1.8% decomposition at 2000℃), can not burn, usually does not support combustion, is an acidic oxide, with the common acid oxide, because of the reaction with water to generate carbonic acid, so it is carbonic anhydride. [2-3]

Carbon dioxide can generally be made by calcination of limestone at high temperature or by the reaction of limestone and dilute hydrochloric acid. It is mainly used in refrigerating perishable food (solid state), as refrigerant (liquid state), manufacturing carbonized soft drinks (gaseous state) and as solvent for homogeneous reaction (supercritical state). [2] As for its toxicity, studies have shown that low concentrations of carbon dioxide are not toxic, while high concentrations can be toxic to animals.

2. Product Parameters (Specifications)

3. Product features and uses

High purity carbon dioxide is mainly used in electronic industry, medical research and clinical diagnosis, carbon dioxide laser, the calibration of detection instruments and the preparation of other special mixing gas, in polyethylene polymerization reaction is used as a regulator. [8]

Solid carbon dioxide is widely used in the refrigeration of dairy products, meat, frozen foods and other perishable foods in transit, as a refrigerant in many industrial processes, such as pulverizing thermal materials, rubber polishing, metal cold treatment, shrinkage assembly of mechanical parts, vacuum cold traps, etc. [8]

Gaseous carbon dioxide is used for carbonization of soft drinks, pH control of water treatment process, chemical processing, food preservation, inert protection of chemical and food processing process, welding gas, plant growth stimulant, used for hardening molds and cores in casting and for pneumatic devices, It is also used as a diluent for bactericidal gas (i.e., mixing gas of ethylene oxide and carbon dioxide as a bactericidal, insecticide and fumigant, widely used in sterilization, bone meal disinfection of medical instruments, packaging materials, clothes, fur, bedding, warehouses, factories, cultural relics and books). [8]

Liquid carbon dioxide is used as a refrigerant, cryogenic testing of aircraft, missiles and electronic components, to enhance oil well recovery, rubber polishing and control chemical reactions, and as an extinguisher. [8]

Supercritical carbon dioxide can be used as a solvent to dissolve non-polar, non-ionic and low molecular weight compounds, so it is widely used in homogeneous reaction.

4. Product details

Carbon dioxide is one of the carbon and oxygen compounds. It is an inorganic substance that is not flammable and does not normally support combustion. It is non-toxic at low concentrations. It is also an anhydride of carbonic acid, which belongs to acidic oxide and has the common property of acidic oxide. The valence of carbon element is +4, which is in the highest valence state of carbon element. Therefore, carbon dioxide has oxidization without reducibility, but the oxidization is not strong

5. Delivery, transportation and services

Carbon dioxide is suitable for storage in a cool, ventilated non-combustible gas warehouse, suitable for shipment in liquid or solid form. When storing and transporting carbon dioxide, we should pay attention to the following points: (1) Keep away from fire and heat source, and store temperature should not exceed 30℃; (2) With easy (combustible) separate storage, do not mix storage; ③The storage area should be equipped with leakage emergency treatment equipment

6.FAQ

1.How many production lines in your factory?

Our company has two production lines.

2. How long is your delivery time?

Around 7 days to 15 days