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Liquid carbon dioxide

Products

Liquid carbon dioxide

Product description
First, the product name
Industrial carbon dioxide liquid carbon dioxide carbon dioxide CO2
Second, carbon dioxide chemical formula
CO2
Third, the relative molecular mass of carbon dioxide
Relative molecular mass: 44.0095 (calculated according to 2007 international relative atomic mass)
Fourth, the industrial carbon dioxide national standard
Industrial carbon dioxide High purity carbon dioxide GB GB/T 23938-2009
Industrial carbon dioxide High purity carbon dioxide Technical requirements
 

Project

Index

Carbon dioxide (CO2) content (volume fraction)/10-2 ≥

99.99

99.995

99.999

Hydrogen (H2) content (volume fraction)/10-6 ≤

5

2

0.5

Oxygen (O2) purity (volume fraction)/10-6 ≤

10

5

1

Nitrogen (N2) content (volume fraction)/10-6 ≤

50

30

3

Carbon monoxide (CO) content (volume fraction)/10-6 ≤

50

30

3

Total hydrocarbon (THC) content (volume fraction)/10-6 ≤

5

2

0.5

Moisture (H20) content (volume fraction)/10-6 ≤

5

3

2

Sulfide, cyanide, phosphide

 

 

V. Purity
99.2%, 99.5%, 99.8%, 99.995%, 99.999%, 99.998%, 99.9999%
Sixth, packaging specifications
It is usually transported to the customer site by tank truck.
Can be used in Dewar cans, 175L, 195L, 210L, 499L.
It can be packed in 1-5 cubic meters of fast and easy storage tanks, 1m3, 2m3, 3m3, 5m3 storage tanks.
It can be packed in cryogenic liquid storage tanks, 10m3, 15m3, 20m3, 30m3, 40m3, 50m3, 60m3, 100m3, etc.
Seven, carbon dioxide application
Carbon dioxide has a very wide range of uses in all sectors of the national economy. Carbon dioxide products are mainly extracted and recovered from synthetic ammonia hydrogen process gas, fermentation gas, lime kiln gas, acid neutralized gas, ethylene oxidation side reaction gas and flue gas. The purity of commercial products is not less than 99% by volume. .
Carbon dioxide can be injected into the beverage, increasing the pressure, causing bubbles in the beverage, and increasing the taste of the drink, such as soda, beer, and the like.
Solid carbon dioxide (or dry ice) vaporizes at room temperature and absorbs a lot of heat, so it can be used in fast food freezing.
Carbon dioxide is heavier than air and does not support combustion. Many fire extinguishers therefore use carbon dioxide to extinguish fires. The carbon dioxide fire extinguisher directly uses liquefied carbon dioxide to extinguish the fire. In addition to the above characteristics, there is an advantage that the solid residue is not left after the fire is extinguished.
Carbon dioxide can also be used as a shielding gas for welding, which is not as protective as other rare gases (such as argon), but at a relatively low price.
Carbon dioxide laser is an important source of industrial lasers.
Carbon dioxide can be used to make wine, and carbon dioxide gas creates an oxygen-deficient environment that helps prevent bacteria from growing in the grapes.
Carbon dioxide controls the pH, carbon dioxide is added to the pool to control the pH, and carbon dioxide is added to keep the pH from rising.
Carbon dioxide can be used in the alkali industry and in the sugar industry.
Carbon dioxide can be used as a blowing agent in the plastics industry.
Dry ice can be used for artificial rain, smoke effects on the stage, food industry, special effects of food, etc.
Dry ice can be used to clean up nuclear industry equipment and plate rolls in the printing industry.
Dry ice can be used in the automotive, marine, aerospace, space and electronics industries. The liquid carbon dioxide is reduced to a gas volume by volume reduction and fabric separation, completely eliminating the complicated post-treatment process brought by conventional solvents.
CO2 supercritical extraction technology. When the temperature is higher than the critical temperature (Tc) of 31 ° C and the pressure is higher than the critical pressure (Pc) of 3 MPa, the properties will change. The density is close to that of liquid, the viscosity is close to that of gas, and the diffusion coefficient is 100 times that of liquid. Therefore, it has a strong dissolving ability, can dissolve a variety of substances, and then extract the active ingredients therein, can use this technology to produce high value-added products, can extract substances that could not be extracted by chemical methods in the past, and is inexpensive and non-toxic. Safe and efficient. It is suitable for chemical, pharmaceutical, food and other industries.
Eight, matters needing attention
The density of carbon dioxide is larger than that of air. When there is less carbon dioxide, it is harmless to the human body. However, when it exceeds a certain amount, it will affect the breathing of humans (other organisms). The reason is that the concentration of carbonic acid in the blood increases, the acidity increases, and acidosis occurs. When the volume fraction of carbon dioxide in the air is 1%, it is nausea, dizziness, and palpitations; 4%-5% feel dizzy. When it is more than 6%, people are unconscious and their breathing is gradually stopped and they die.
Because carbon dioxide is heavier than air, the concentration is lower at low temperatures. When manually drilling a hole or digging a pile, if the ventilation is poor, the person at the bottom of the well will suffocate. The normal content of CO2 is 0.04%. When the concentration of CO2 reaches 1%, people will feel nausea, dizziness and palpitations. When they reach 4%~5%, they will feel asthma, headache and dizziness, and when they reach 10%, It can cause serious disruption of the human body, causing people to lose consciousness, unconsciousness, and stop breathing and die. Substances that should be avoided:
Various metal dusts (such as magnesium, zirconium, titanium, aluminum, manganese): when suspended in carbon dioxide, it is easy to ignite and explode.
Water: Carbonic acid will form.
When people inhale high concentrations of carbon dioxide, coma and cerebral hypoxia, when the atmospheric carbon dioxide content exceeds 1%, people have mild dizziness; when more than 3%, begin to have difficulty breathing; more than 6%, It will be severely hypoxic and suffocate and even die.

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