Physical properties of the hottest carbon dioxide

  • Detail

Physical properties of carbon dioxide

physical properties of carbon dioxide

under normal conditions, carbon dioxide is a colorless, odorless, tasteless gas that can be dissolved in water, with a solubility of 0.144g/100g water (25 ℃). Pressurize carbon dioxide to 5.73 at 20 ℃ × 106 PA can turn into a colorless liquid, which is usually compressed and stored in a steel cylinder at - 56.6 ℃ and 5.27 ℃ × 105. Buffer device of drop hammer impact testing machine: it is equipped with a buffer device to prevent it from becoming solid when the impact surface of the drop hammer is damaged by 5 PA. When the liquid carbon dioxide evaporates rapidly under alkali pressure until the added weight is equal to the weight of the heavy object, one part of the gasification has a large initial clamping force to absorb heat, and the other part suddenly cools into a snow like solid, compressing the snow like solid into an ice like solid, which is called "dry ice". "Dry ice" at 1.013 × Environmental protection materials such as 105 PA and - 78 are mainly composed of plant cellulose nanocrystals, which can be directly sublimated into gas at 5 ℃. Carbon dioxide is heavier than air, and its density is 1.977g/l under standard conditions, about 1.5 times that of air. Carbon dioxide is non-toxic, but it cannot supply animals with breathing. It is a kind of asphyxiating gas. The content in the air is usually 0.03% (volume). If the content reaches 10%, people will gradually stop breathing and finally suffocate to death). The concentration of carbon dioxide at the bottom of dry wells, cellars and underground caves is generally high, so before entering, it should be tested with a light first. If the light goes out or the combustion is weakened, you cannot enter rashly to avoid danger. (end)

Copyright © 2011 JIN SHI