Carbon Dioxide
Carbon Dioxide
CAS: 124-38-9
Molecular Formula: CO2
Carbon Dioxide - Names and Identifiers
| Name | Carbon Dioxide |
| Synonyms | aerfixus after-damp methanedione carbonic acid Carbon Dioxide dicarbonic acid carbon monooxide Carbonic Acid Gas Carbonic Anhydride Carbon oxide (CO2) carbondioxide(co2) anhydridecarbonique Anhydride carbonique Carbon dioxide,edible Carbon dioxide,liquid Carbon dioxide,high purity anhydridecarbonique(french) |
| CAS | 124-38-9 |
| EINECS | 204-696-9 |
| InChI | InChI=1/C2H2O5/c3-1(4)7-2(5)6/h(H,3,4)(H,5,6) |
Carbon Dioxide - Physico-chemical Properties
| Molecular Formula | CO2 |
| Molar Mass | 44.01 |
| Density | 1.854g/cm3 |
| Melting Point | −78.5 °C(lit.) |
| Boling Point | 326.9°C at 760 mmHg |
| Flash Point | 160.2°C |
| Vapor Presure | 4.19E-05mmHg at 25°C |
| Refractive Index | 1.478 |
| Physical and Chemical Properties | Colorless, odorless, non-combustion, non-combustion, compressed to high-pressure gas. relative density 1.977(0 ℃) solubility in water, gas carbon dioxide solubility 171.3g/cm3 water (0 ℃), the aqueous solution is acidic. |
| Use | A large number of used as raw materials such as soda ash, sodium bicarbonate, white lead, urea and ammonium bicarbonate, can also be used as fire extinguishing agent, fresh refrigerant, etc.; Gas carbon dioxide is mainly used as soda ash, fertilizer (ammonium bicarbonate, urea) and synthetic methanol and inorganic salt industry raw materials, also used in steel casting quenching and White manufacturing, also used in the manufacture of dry ice. Liquid carbon dioxide is used in welding, fermentation industry, cooling and cooling beverage, sugar industry, medical local anesthesia, and also used as large cast steel anti-foaming agent, plant growth promoter, anti-oxidant and fire extinguishing agent. Solid carbon dioxide for penicillin production, fish, cream, ice cream and other food storage and low-temperature transport. |
Carbon Dioxide - Risk and Safety
| Safety Description | S9 - Keep container in a well-ventilated place. |
Carbon Dioxide - Upstream Downstream Industry
| Raw Materials | Coke(coal) Calcium carbonate |
| Downstream Products | Hydrobromic acid Sodium carbonate Sodium bicarbonate Barium carbonate Strontium carbonate,nanometre Methyl alcohol |
Carbon Dioxide - Nature
Open Data Verified Data
carbon dioxide is a colorless and odorless gas at normal temperature and pressure. Is a weak acid gas, with a slight pungent odor at high temperature; Non-flammable, liquefied into a colorless and tasteless liquid. It is a colorless and odorless gas at normal temperature and pressure. The gas relative density (Air = 1) was 1.21.1 at 101 °c and 522.3kPa, and the sublimation temperature was -101 °c at 78.5.3kPa. Vapor pressure (kPa):5778(21.1 deg C), 3385(0 deg C), 2082(- 16.7 deg C), 416 (-56.5 deg C), 0 (78.5 deg C). Gas density (kg/m3):1.833(21.1 ° C., 101. 3kPa),1. 977 (0 ° C., 101. 3kPa). Saturated liquid density (kg/m3):762(21.1 ℃),929(0 ℃),1014(- 16.7 ℃),1070(- 28.9 ℃),1177(-56.6 degrees C). The critical temperature is 31.1 ℃, the critical pressure is 7382kPa, and the critical density is 468kg/m3. Triple point -56.6 °c (416kPa). Latent heat of evaporation (kj/kg):234.5(0 °c),276.8(- 16.7 °c),301.7(-28.9 °c). Latent heat of fusion 199kj/kg(-56.6 °c). Carbon dioxide is a weakly acidic gas with a slightly pungent odor at high temperatures. At atmospheric pressure, carbon dioxide cannot be present as a liquid, and when the temperature and pressure are above the triple point, but below 31.1 ° C., the carbon dioxide and the gas are in equilibrium in the closed vessel. Carbon dioxide is nonflammable and can corrode some common metals in the presence of water.
Last Update：2024-01-02 23:10:35
Carbon Dioxide - Preparation Method
Open Data Verified Data
The adsorption expansion desorption method is adopted, and the by-produced carbon dioxide gas in the fermentation process is used as the raw material. The water, ethanol and hydrocarbons are removed by the first-stage adsorber and then introduced into the second-stage adsorber to the specified pressure, the outlet port of the electroadsorber is expanded and desorbed in the forward direction. When the pressure is expanded to normal pressure, high purity carbon dioxide is extracted from the adsorption phase, and the product is collected by a cryogenic pump, and then vaporized and pressurized to fill the cylinder. Or the use of adsorption distillation, that is, the distillers' by-product carbon dioxide gas raw materials, silica gel, 3A Molecular and activated carbon as adsorbent adsorption removal of water, ethanol and sulfide and other impurities, then the distillation method is used to remove low boiling point impurities, and high purity carbon dioxide products can be prepared
Last Update：2022-01-01 08:54:45
Carbon Dioxide - Standard
Authoritative Data Verified Data
This product contains (:0 2 not less than 99.5% (m l/m l).
Last Update：2024-01-02 23:10:35
Carbon Dioxide - Trait
Authoritative Data Verified Data
- This product is a colorless gas; Odorless; Weak acidic reaction in aqueous solution.
- This product can be dissolved in about 1 volume of water at atmospheric pressure of 20°C.
Last Update：2022-01-01 11:19:43
Carbon Dioxide - Use
Open Data Verified Data
high purity carbon dioxide is mainly used in electronic industry, medical research, clinical diagnosis and filling gas of carbon dioxide laser. It is used as standard gas and calibration gas for various analytical instruments, carrier gas for electronic collider, protective gas and equilibrium gas for each process made of semiconductor, and other special mixed gases.
Last Update：2022-01-01 08:54:46
Carbon Dioxide - Differential diagnosis
Authoritative Data Verified Data
- take this product, pass into the barium hydroxide test solution, that is, a white precipitate is generated; The precipitate can be dissolved in acetic acid and bubble boiling.
- This product can make the flame out.
- The infrared absorption spectrum of this product should be consistent with that of the control (Figure 1) (General rule 0402).
Last Update：2022-01-01 11:19:44
Carbon Dioxide - Safety
Open Data Verified Data
carbon dioxide gas itself is non-toxic, but it can control the respiratory function, is a kind of suffocation agent. Breathing air containing more than 5% of C02 is dangerous, it is recommended to allow a maximum concentration of 5 x 10-3. Liquid and solid carbon dioxide cylinders should not overheat, otherwise it will happen violent explosion
Fried. Carbon dioxide gas cylinder filling coefficient is not greater than 0. 60kg.L- 1.
Last Update：2022-01-01 08:54:46
Carbon Dioxide - Exam
Authoritative Data Verified Data
acidity
take 100ml of water, add 0.2 of methyl orange indicator solution, mix well, take 50 M l, put a and B in two colorimetric tubes, put in B tube, add hydrochloric acid titration solution (0,01mi/L) 1.0, shake well; In the tube, after the product is 1000ml (speed of 4000ml per hour), the red color should not be deeper than the tube B.
carbon monoxide
take this product, with the determination of carbon monoxide detection tube, containing carbon monoxide shall not exceed 10 parts per million.
phosphine
take this product, with phosphine detection tube determination, containing phosphine should not exceed three million.
hydrogen sulfide
take this product, with hydrogen sulfide detection tube, containing hydrogen sulfide shall not exceed one part per million.
hydrocarbons
take this product as a test sample; Take the gas with methane content of 0.0020% (with nitrogen as diluent) as the control gas, according to Gas chromatography (General 0521) test, A chromatographic column (0.8 x 4mm, 80 mesh) packed with a glass ball; The column temperature was 110°C; The inlet temperature was 110dC; And the detector temperature was 120°C. The test gas and the control gas are injected into the gas chromatograph, and the peak area measured at the purification temperature of 360 ° C is the corresponding blank value; The test gas and the control gas are measured, the peak area was determined by gas chromatography, and the peak area after subtracting the corresponding blank value was the corrected peak area. According to the external standard method to calculate the corrected Peak area, containing hydrocarbons (methane) shall not exceed 0.0020%.
Last Update：2022-01-01 11:19:45
Carbon Dioxide - Content determination
Authoritative Data Verified Data
take the L-type carbon dioxide meter (Figure 2), open the two-way stopcock C and D, and connect the outlet of the pressure reducing valve of the sample cylinder with the glass pipe at C with the rubber pipe, fully replace the air in the measuring instrument and its connecting pipe with this product (more than 10 times of the volume to be replaced), close the tap D, close the bottom tap C, remove the rubber tube, and quickly rotate D several times, the pressure in the instrument is equilibrated with atmospheric pressure. Inject 30% potassium hydroxide solution into the dropping funnel, slowly open the stopper D, and let 30% potassium hydroxide solution flow into horizontal absorber A, when the absorption of carbon dioxide is complete (I. E., 30% potassium hydroxide solution no longer flows into absorber A, when the remaining gas volume is constant), the stopcock D is closed. Reading the indicated value of the liquid level in the trachea of the volume A of the absorber is obtained.
Last Update：2022-01-01 11:19:45
Carbon Dioxide - Category
Authoritative Data Verified Data
pharmaceutical excipients, air substitutes, p H value regulator and aerosol propellant.
Last Update：2022-01-01 11:19:46
Carbon Dioxide - Storage
Authoritative Data Verified Data
Store in pressure-resistant container.
Last Update：2022-01-01 11:19:46
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Product Name: Carbon Dioxide Request for quotationCAS: 124-38-9
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Spot supply
Product Name: Carbon Dioxide Request for quotationCAS: 124-38-9
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Carbon Dioxide Request for quotationCAS: 124-38-9
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
View History
Raw Materials for Carbon Dioxide
Downstream Products for Carbon Dioxide
Hydrobromic acid
Sodium carbonate
Sodium bicarbonate
Barium carbonate
Strontium carbonate,nanometre
Methyl alcohol
Sodium carbonate
Sodium bicarbonate
Barium carbonate
Strontium carbonate,nanometre
Methyl alcohol