2/9/2024 0 Comments Boiling point of liquid oxygen![]() Rounded to two sig figs, the number of sig figs you have for the volume of the sample, and expressed in joules, the answer will be-keep in mind that you have #"1 kJ" = 10^3#"J"# You can thus say that your sample will require In your case, liquid oxygen is said to have a heat of vaporization equal to #"213 kJ kg"^(-1)#, which means that in order to convert #"1 kg"# of liquid oxygen at its boiling point to oxygen gas at its boiling point, you need to supply #"213 kJ"# of heat. Now, the heat of vaporization tells you the amount of heat needed in order to boil #1# unit of mass of a given substance at its boiling point. This means that your sample will have a mass of You know that liquid oxygen at its boiling point has a density of #"1.14 kg L"^(-1)#, which means that #"1 L"# of liquid oxygen at its boiling point has a mass of #"1.14 kg"#. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.All you have to do here is to use the density of liquid oxygen given to you to figure out the mass of the sample. The published material is being distributed without warranty of any kind, either expressed or implied. Inhalation symptoms are characteristic of exposure to extremely high concentrations only.Īll rights reserved. Work clothes saturated with oxygen may be a serious fire hazard.ĭo NOT use in the vicinity of a fire or a hot surface, or during welding. The substance may cause effects on the central nervous system.Įffects of long-term or repeated exposure The substance at very high concentrations is irritating to the respiratory tract. Rapid evaporation of the liquid may cause frostbite. The substance can be absorbed into the body by inhalation. Octanol/water partition coefficient as log Pow: 0.65 Solubility in water, ml/100ml at 20☌: 3.1 The product also requires special equipment for handling and storage. Because the temperature diference between the product and the surrounding environment is substantialeven in the winterkeeping liquid oxygen insulated from the surrounding heat is essential. This generates fire and explosion hazard. Liquid oxygen has a boiling point of 297F (183C). It reacts with combustible and reducing materials. ![]() COLOURLESS-TO-BLUE EXTREMELY COLD LIQUID. With the financial assistance of the European Commission. ![]() Prepared by an international group of experts on behalf of ILO and WHO, Separated from combustible substances and reducing agents. Liquid oxygen Properties: Boiling point, -183C Density, 1142kg/m3 Relative density, 1.14 (Water 1) Ratio to volume of gas, 1 : 842 (At room temperature). UN Hazard Class: 2.2 UN Subsidiary Risks: 5.1įireproof. Do NOT absorb in saw-dust or other combustible absorbents. įirst rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.Ĭold-insulating gloves. Combat fire from a sheltered position.Ĭough. ![]() In case of fire: keep drums, etc., cool by spraying with water. In case of fire in the surroundings, use appropriate extinguishing media. NO open flames, NO sparks and NO smoking. Therefore, liquid nitrogen that is open to the air will condense oxygen as a liquid and the mixture of liquid oxygen and liquid nitrogen is a powerful oxidizing agent that reacts violently with most flam-mables, combustibles, and other reducing agents. Risk of fire and explosion on contact with combustible substances or reducing agents. Not combustible but enhances combustion of other substances.
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