Question 2: What is nitrous oxide? Strong oxidants can rapidly oxidize fuel and release a lot of heat.
Question 3: What's the difference between nitric oxide and nitrous oxide? 50 min (1) nitrogen oxide, nitrogen oxide compound, chemical formula NO, molecular weight 30, and the valence of nitrogen is +2. Colorless and odorless gas, toxic gas, insoluble in water. Because nitric oxide has free radicals, its chemical properties are very active. When it reacts with oxygen, it can form a corrosive gas-nitrogen dioxide (NO2), which can passivate the reaction between nitric oxide and oxygen: 2NO+O2==2NO2.
(2) Nitrous oxide, also known as nitrous oxide, is a colorless and sweet gas. It is an oxidant with the chemical formula n? O, under certain conditions, can support combustion (like oxygen, because nitrous oxide can be decomposed into nitrogen and oxygen at high temperature), but it is stable at room temperature and has a slight anesthetic effect, which can make people laugh. Its anesthetic effect was in 1799 by British chemist Humphrey? David found out. The theory is n? O and CO? If molecules have similar structures (including electrons), then their spatial configurations are linear, n? O is a polar molecule.
Question 4: What effect does nitrous oxide have on speed and * * *? This is called nitrous oxide or nitrous oxide!
brief introduction
Nitrous oxide is a colorless and sweet gas, also called nitrous oxide, which is an oxidant with the chemical formula N2O. Nitrous oxide can support combustion under certain conditions (like oxygen, because nitrous oxide can be decomposed into nitrogen and oxygen at high temperature), but it is stable at room temperature and has a slight anesthetic effect, which can make people laugh. It can be dissolved in water, ethanol, ether and concentrated sulfuric acid. Its anesthetic effect was in 1799 by British chemist Humphrey? David found out. This gas was used for anesthesia in dental surgery at an early stage. Laughter is one of the earliest anesthetics used in medical treatment. This is a colorless gas. People can't help laughing after inhaling, which has anesthetic effect. It can be produced by decomposition of NH4NO3 under slight heat, and there is another product besides N2O. The chemical equation of this reaction is) NH4NO3->; N2O ↑+ 2H2O； According to related theories, N2O and CO2 molecules have similar structures (including electrons), so their spatial configurations are linear and N2O is polar.
other
Alias laughing gas; Nitrous oxide
Molecular structure nitrous oxide molecules have linear molecules and polar molecules. The molecule of N2O is linear. N atoms hybridize with sp to form two σ bonds and two three-center four-electron π bonds, and the oxidation number of N is+1.
English name N2O Spanish name: Oxido Nitroso
Medical indications are often used in combination with halothane, methoxyhalothane, ether or intravenous general anesthesia because of poor general anesthesia effect. It is used less now. Nitrous oxide (N2O) is used in anesthesia, which has no effect on respiratory tract, and has no damage to the functions of heart, lung, liver, kidney and other important organs. There is no biotransformation or degradation in the body, most of them are still excreted with the original drug, and only a small amount evaporates from the skin without accumulation. It only takes 30 s to 40 s to produce analgesic effect when inhaled into the body. The analgesic effect is strong and the anesthetic effect is weak. The patient was awake (not anesthetized), avoiding the complications of general anesthesia and recovering quickly after operation.
Dosage and usage of drug inhalation: The dosage depends on the needs of surgery and the patient's condition.
Medical precautions 1. Major surgery needs to be combined with thiopental sodium and muscle relaxants; The oxygen concentration in the inhaled gas should not be less than 20%; Inhale pure oxygen 10 minute after anesthesia to prevent hypoxia. 2. When the patient has hypovolemia, shock or obvious heart disease, it can cause severe hypotension. Nitrous oxide may also be harmful to patients with pulmonary embolism.
Contraindications (1) air cyst (2) intestinal obstruction, flatulence (3) pneumothorax (4) pneumoconiosis (5) craniotomy with high head position.
Specification gas for medical drugs: packed in pressure-resistant iron cylinders.
Store in a pressure-resistant steel cylinder and place in a cool and dark place.
Its physical characteristics
Melting point -90.8℃ K (
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Boiling point -88.49℃ K (
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Critical point 36.5℃
7265 bar
Its generation
Heating or impacting ammonium nitrate will produce nitrous oxide and water. NH4NO3=N2O+2H2O
Nitrous oxide with purity of 95% can be obtained by thermal decomposition of ammonium nitrate in industry.
(One laughing gas molecule is combined with six water molecules. When a large amount of nitrous oxide is dissolved in water and then the water is cooled, nitrous oxide crystals will appear. When the crystal is heated, laughing gas will escape. People use this characteristic of nitrous oxide to make high-purity nitrous oxide. )
Preparation of nitrous oxide
Principle Ammonium nitrate melts at 169.5℃ and decomposes into nitrous oxide and water at 220℃.
NH4NO3 N2O+2H2O
Supply large test tubes, iron shelves, alcohol lamps, sinks, gas containers, ammonium nitrate.
operate
1. Fully dry ammonium nitrate in a properly heated drying device at 80- 100℃. Then grinding in a dry mortar, drying at the temperature of 80- 100℃, quickly filling in a bottle, and filling and storing.
2. Take 2g of the above-mentioned dried ammonium nitrate, add it into a dry test tube, assemble it according to the drawing, and heat it (cut the wick of the alcohol lamp so that the flame is not too big). Ammonium nitrate melts into liquid, and then bubbles roll like water boiling. Collecting nitrous oxide gas by drainage method.
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1. The heating temperature of this experiment should not be too high. If the temperature is too high, it may decompose into nitrogen, nitric oxide and nitrogen dioxide. Especially at high temperature, it is easy to cause explosion.
2. The dosage of ammonium nitrate should be controlled at about 2g to avoid explosion.
3. The test tube mouth should be slightly lower than the horizontal plane. In this way, water generated by the reaction can be prevented from contacting the heating part ............................................................................................................................................................. >
Question 5: What is the use of nitrous oxide in cars? It is also called nitrous oxide or nitrous oxide. It can strongly support combustion and is widely used in real car racing. It can increase 50- 100 horsepower. Because the nitrous oxide system is very harmful to the engine, ordinary cars can't bear it, so the engine must be strengthened, and the life of the engine equipped with nitrous oxide system will be greatly shortened. Therefore, there are not many civilian cars modified with nitrous oxide, only hardcore players and racing cars with linear acceleration. When the nitrous oxide system is activated, a light blue flame can be seen from the exhaust pipe. The turbocharging effect is better. .......
Question 6: What is nitrous oxide? Why is there one in the car? Nitrous oxide, also known as nitrous oxide, is an oxidant, a colorless and sweet gas. It has a slight anesthetic effect, has no harm to important organs such as the heart and lungs, and has an analgesic effect. Why is there a racing car? I think it's a high-risk activity to avoid frequent dangers. After all, it has anesthetic effect.
Question 7: What is the meaning of nitrous oxide unit mg N*m-2? Leisure and beautiful scenery. Late at night. Sitting in a chair made of wood, the hair on my temples dazzled me; The leisurely old man walked with his companions and talked about his family. It seems that people without umbrellas are crazy to run to the ancient bridge. The longest existing covered bridge, such as Dragon Bridge and Qingshui, is the longest single-hole wooden arch bridge in China. After dinner, even the reflection of the stars didn't tremble at all. Qingyuan, my hometown, is a covered bridge castle with the reputation of "the hometown of covered bridges". Silence enveloped this antique bridge fort; The weather is fine, and the dazzling light of the sun is baking the earth. Covered bridges of various shapes can be seen everywhere in Qingyuan. Laughter filled the whole bridge, and the old bridge fell asleep again. There were laughter and farewell sounds. It occupies an important position in the time and space of covered bridges in China. Qingyuan is calling against the backdrop of willows. The covered bridge was wide and big, and they went back to their respective homes. Under the illumination of colored lights, I played chess with my friends under the ancient bridge. It's raining: there are exact dates all over the country. Tell me the most interesting thing of the day. A large crowd squeezed out of the bridge. In summer, people sit and laugh on the ancient bridge, which is a bit like the unique brown-red banana, Lanxi Bridge, the largest existing single-span covered bridge in Ming Dynasty, and the blue sky and moonlight have covered this castle with a thin layer of Yin Hui. The breeze blew, and I was intoxicated with this ancient bridge and walked quietly in it. The cornice is raised. Before the last ray of sunshine disappeared on the horizon, everyone went back and satisfied my curious eyes. The bridge gradually became silent, with the crescent moon of Buddha hanging in the sky, and covered bridges with the earliest historical records in China-Daji Shuangmen Bridge and Futian Bridge, where Tai Chi is practiced, these ancient cities are even more dazzling. All kinds of unique windows make me feel like I'm in an antique wooden house again, all in Qingyuan, looking up and walking on an empty covered bridge with a mirror-like river.
Question 8: Nitrous oxide
Nitrous oxide
Alias: nitrous oxide, nitrous oxide, dianhydride.
baike.baidu/view/286 144? fr = ala 0
Question 9: What is the nitrous oxide fuel injection system? The nozzle of this injection system is installed on the intake pipe, and the injected liquid is liquefied nitrous oxide. After nitrous oxide is injected, it absorbs the heat in the intake pipe and vaporizes, and then nitrous oxide will be decomposed into oxygen and nitrogen oxides when heated. Simply put, it is to use the thermal decomposition property of nitrous oxide to increase the oxygen content in combustion and further increase the combustion rate (the oil supply will also increase together). Some people may ask why n doesn't use better pure oxygen injection, because the danger of pure oxygen is too high and it is easy to cause explosion accidents.