Search ozone ozone general information scientific name ozone molecular formula O3 molar mass 47.998 g mol? 1 gas with blue appearance (very light blue) CASNo. [10028- 15-6] Physical property density and phase state 2. 144 g L? 1 (0℃)
The solubility in gaseous water is 0. 105g. 100 ml? 1(0 c) melting point 80.7k.
? 192.5℃ boiling point161.3k.
? 1 1 1.9℃ thermodynamic data standard molar enthalpy of formation Δ FH solid+142.3 kj mol? 1 standard molar entropy s solid 237.7 j k? 1.mol？ 1 The safety EU classification does not list more information about NFPA 704 (the following information is not provided in the Chinese version of "Ozone", please refer to the English version of the note) Structure and properties n
εr
Thermodynamic data phase state: solid state
liquid state
Gaseous optical data ultraviolet light
infrared ray
Nuclear magnetic resonance (NMR)
Flash point of MS regulatory data
RTECS number
E Unless otherwise stated, all data are in accordance with the International System of Units and come from standard conditions (25°c).
100 kpa). Ozone (molecular formula O3) is an allotrope of oxygen (O2), which is a light blue gas with a special smell at room temperature. The English word Ozone comes from the Greek word ozone, which means "smell". Ozone mainly exists in the ozone layer in the lower stratosphere 20 kilometers away from the earth's surface. It absorbs short-wave ultraviolet rays harmful to human body and prevents them from reaching the earth. O2 is obtained by ultraviolet irradiation. Directory [Hidden] 1 Discovery 2 Personality 3 Influence 4 Use and Preparation 5 See: 6 Reference [Edit] Discovery 1785. When using the motor, Germans found that the motor had an odor when discharging. 1840, French scientist kissian Friedrich identified it as ozone. [Editor] Ozone has an isosceles triangle structure. The three oxygen atoms are located at the three vertices of the triangle, the vertex angle is 1 16.79 degrees, the density is about 1.5 times that of oxygen, and its boiling point and freezing point are higher than that of oxygen. Ozone is blue in liquid state and purple in solid state. It is different from oxygen.
With a distinctly disgusting smell. Ozone is highly reactive, easy to decompose and unstable, and will gradually decompose into oxygen at room temperature. Its nature is more active than oxygen, and its specific gravity is 1.7 times that of ordinary air. Ozone will be decomposed into oxygen by light, heat, moisture, metals, metal oxides and other catalysts. Insoluble in liquid oxygen and carbon tetrachloride. It is highly oxidizing, and can oxidize silver into silver oxide and lead sulfide into lead sulfate at room temperature. Ozone can decolorize many organic pigments, which is very destructive to rubber and fiber and easy to oxidize organic unsaturated compounds. Ozone is extremely stable in ice, with a half-life of 2000. Ozone can be tested with potassium iodide. [Editor] Ozone is a strong oxidant because of its strong reactivity, which is harmful to plants, animals, plastics, rubber and many other structural materials. It can also damage lung tissue, leading to lung bleeding and death. Therefore, when the ozone content in the air is too high, it is generally suggested that the elderly and children should not do strenuous exercise outdoors to avoid inhaling excessive ozone. Ozone in the lower air is sometimes called "harmful" ozone, which mainly comes from the photochemical decomposition of nitrogen dioxide in automobile and locomotive exhaust. Due to the influence of industrial and automobile exhaust, especially in agricultural and forestry areas around big cities, ozone will be formed and accumulated on the surface. Surface ozone has corrosive and damaging effects on human body, especially on eyes and respiratory tract. Surface ozone is also harmful to crops or forests. Contrary to "harmful" ozone, "beneficial" ozone exists in the middle layer of the earth's atmosphere, also known as the photochemical layer, covering the earth's surface and blocking most of the solar ultraviolet radiation that destroys biological tissues. Moreover, thin ozone can give people a fresh feeling, so the air is always particularly fresh after a thunderstorm. [Editor] Usage and preparation industry, it is made of dry air or oxygen and silent discharge with 5~25kv AC voltage. In addition, low-temperature electrolysis of dilute sulfuric acid or heating of liquid oxygen can also produce ozone. Nature easily produces ozone. When lightning strikes, it will generate hundreds of thousands of volts of high-voltage electricity, ionize air and organic matter, and form ozone. Ozone can destroy planktonic bacteria in the air in a short time, neutralize and decompose toxic gases, and remove odor. Therefore, ozone can be used to purify air and drinking water, sterilize, treat industrial waste and serve as bleaching agent.
Ozone (molecular formula O3) is an allotrope of oxygen (O2), which is a light blue gas with a special smell at room temperature. The English word Ozone comes from the Greek word ozone, which means "smell". Ozone mainly exists in the ozone layer in the lower stratosphere 20 kilometers away from the earth's surface. It absorbs short-wave ultraviolet rays harmful to human body and prevents them from reaching the earth. O2 is obtained by ultraviolet irradiation.
Reference: zh. *** /w/index？ Title =% E8% 87% AD% E6% B0% A7& Variant =zh-
As far as I know, ozone o3 is a colorless and odorless toxic gas, which can be used to block ultraviolet rays.
Disinfection and deodorization
I hope the following information can help you. Ozone (molecular formula O3) is an allotrope of oxygen (O2), which is a light blue gas with a special smell at room temperature. The English word Ozone comes from the Greek word ozone, which means "smell". Ozone mainly exists in the ozone layer in the lower stratosphere 20 kilometers away from the earth's surface. It absorbs short-wave ultraviolet rays harmful to human body and prevents them from reaching the earth. O2 is obtained by ultraviolet irradiation. You may want to visit the following website for more details. zh。 *** /w/index？ Title =% E8% 87% AD% E6% B0% A7& Variant =zh- Source: zh. *** /w/index？ Title =% E8% 87% AD% E6% B0% A7& Variant =zh-
Reference: zh. *** /w/index？ Title =% E8% 87% AD% E6% B0% A7& Variant =zh-