Dinitrogen liquid

Furthermore, life should be considered possible in aqueous environments that are extreme in their solute content, in their acidity or alkalinity, and in their temperature range, especially with ammonia as an antifreeze in low-temperature water-ammonia eutectics. The committee sees no reason to exclude the possibility of life in environments as diverse as the aerosols above Venus and the water-ammonia eutectics of Titan. It seems that life is less likely in more exotic solvents—such as liquid dinitrogen, liquid methane, and supercritical dihydrogen—but this conclusion is based on few data. 

Dinitrogen trioxide, N2O3. Only stable in solid state (m.p. — 102 C). Pale blue solid giving deep blue liquid the gas contains some ONNO2 molecules. Prepared from NO and O2 or NO and N2O4 with freezing decomposes to NO and NO,. 

Other liquid inorganic compounds show the auto-dissociation characteristic of water and liquid ammonia for example, dinitrogen tetroxide (p. 231), as well as undergoing the more familiar homolytic dissociation... 

Dinitrogen tetroxide, N2O4, as a liquid, has some power as a solvent, and appears to dissociate slightly to give nitrosyl nitrate, thus ... 

Solid covalent dinitrogen pentoxide can be prepared by freezing the vapour with liquid helium. Normally, solid dinitrogen pentoxide exists as (NO2+) (NOj ), showing absorption bands in its Raman spectrum only at 1050 and 1400 cm the structure of this form has been determined by X-ray crystallography. ... 

Ammonia can also react violently with a large selection of chemicals including ethylene oxide, halogens, heavy metals, and oxidants such as chromium trioxide, dichlorine oxide, dinitrogen tetroxide, hydrogen peroxide, nitric acid, liquid oxygen, and potassium chlorate. 

The brown nitrogen dioxide gas eondenses to a yellow liquid whieh freezes to eolourless erystals of dinitrogen tetroxide. Below 150°Cthe gas eonsists of moleeules of dinitrogen tetroxide and nitrogen dioxide in equilibrium and the proportion of dinitrogen tetroxide inereases as the temperature falls. Above 150°C nitrogen dioxide dissoeiates into nitrie oxide and oxygen. 

Osmium(II) forms no hexaaquo complex and [Os(NH3)g] +, which may possibly be present in potassium/liquid NH3 solutions, is also unstable. [Os(NH3)5N2] and other dinitrogen complexes are known but only ligands with good 7r-acceptor properties, such as CN, bipy, phen, phosphines and arsines, really stabilize Os , and these form complexes similar to their Ru analogues. 

To illustrate how a relatively simple equation can be written and balanced, consider a reaction used to launch astronauts into space (Figure 3.4). The reactants are two liquids, hydrazine and dinitrogen tetraoxide, whose molecular formulas are N2H4 and N204, respectively. The products of the reaction are gaseous nitrogen, N2, and water vapor. To write a balanced equation for this reaction, proceed as follows ... 

When ammonia reacts with dinitrogen oxide gas (AH = 82.05 kj/mol), liquid water and nitrogen gas are formed. How much heat is liberated or absorbed by the reaction that produces 345 mL of nitrogen gas at 25°C and 717 mm Hg ... 

At — 20°C, dinitrogen trioxide separates from the mixture as a blue liquid. 

Gamma Radiolysis of Liquid Dinitrogen Tetrox-ide , PATR 3072 (1963) 20) Anon,... 

FIGURE 15.6 Dinitrogen trioxide, N2Oj, condenses to a deep-blue liquid that freezes at 100°C to a pale-blue solid, as shown here. On standing, it turns green as a result of partial decomposition into nitrogen dioxide, a yellow-brown gas. 

C06-0112. In some liquid-fuel rockets, such as the lunar lander module of the Apollo moon missions, the fuels are liquid hydrazine (N2 H4 ) and dinitrogen tetroxide gas (N2 O4 ). The two chemicals ignite on contact to release very large amounts of energy 2 N2 H4(/) + N2 04(g) 3 N2(g) + 4 H2 0(g)... 

CFP are normally quite resistant to thermal degradation, under dinitrogen, and depolymerisation starts in the 280-320 °C range, in the dry state [21]. This makes M°/ CFPs quite suitable for operations in the liquid phase occurring at mild to moderate temperatures. CFPs... 

Benzene or toluene detonate when they are in contact with dinitrogen tetroxide, especially when dinitrogen tetroxide is in liquid form. 

The new dinitrogen complex [Ni(CO)3N2] can be generated in a pressure cell by UV photolysis of tetracarbonylnickel in liquid krypton, doped with N2 at 114K. The decomposition of this complex was followed over the temperature range 122-127 K and a value of the Ni—N2 bond dissociation energy estimated at lOkcal moN1.2474... 

Mixtures of aluminium powder with liquid chlorine, dinitrogen tetraoxide or tetran-itromethane are detonable explosives, but not as powerful as aluminium-liquid oxygen mixtures, some of which exceed TNT in effect by a factor of 3 to 4 [1], Mixtures of the powdered metal and various bromates may explode on impact, heating or friction. Iodates and chlorates act similarly [2], Detonation properties of gelled slurries of aluminium powder in aqueous nitrate or perchlorate salt solutions have been studied [3], Reactions of aluminium powder with potassium chlorate or potassium perchlorate have been studied by thermal analysis [4],... 

See Dinitrogen tetraoxide Halocarbons Oxygen (Gas) Halocarbons Oxygen (Liquid) Halocarbons Perchloric acid Trichloroethylene... 

Arsenic trioxide reacts violently and nitrogen oxide ignites in excess fluorine. Bubbles of sulfur dioxide explode separately on contacting fluorine, while addition of the latter to sulfur dioxide causes an explosion at a certain concentration [1], Reaction of fluorine with dinitrogen tetraoxide usually causes ignition [2], Interaction with carbon monoxide may be explosive. Anhydrous silica incandesces in the gas, and interaction with liquid fluorine at — 80°C is explosive [3,4], Boron trioxide also incandesces in the gas [3],... 

Possible blast hazards associated with use of the propellant combination liquid dinitrogen oxide-liquid carbon monoxide have been evaluated. 

Warm or molten white phosphorus bums vigorously in nitrogen oxide, dinitrogen tetraoxide or dinitrogen pentaoxide. White phosphorus ignites after some delay in contact with the vapour of sulfur trioxide, but immediately in contact with the liquid if a large portion is used. 

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