![Ball-and-stick model of the diamminesilver(I) cation, [Ag(NH3)2]+](https://hyperleap.com/images/454b2d1311d3cfbe8c10a38c923bf0c5/200-4b732b88bccd357f39e7edc4d4409b6a.png)
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![Time-lapse sequence from the approach of Voyager 1, showing the motion of atmospheric bands and circulation of the Great Red Spot. Recorded over 32 days with one photograph taken every 10 hours (once per Jovian day). See [[:File:Jupiter from Voyager 1 PIA02855 max quality.ogv|full size video]].](https://hyperleap.com/images/89c5c30498c2989611f9044be006197c/200-f2643933193d707e247b7cccb5966112.gif)
Ammonia is also found throughout the Solar System on Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto, among other places: on smaller, icy bodies such as Pluto, ammonia can act as a geologically important antifreeze, as a mixture of water and ammonia can have a melting point as low as 173 K if the ammonia concentration is high enough and thus allow such bodies to retain internal oceans and active geology at a far lower temperature than would be possible with water alone.
- AmmoniaThe atmosphere contains trace amounts of methane, water vapour, ammonia, and silicon-based compounds.
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Uranus
3 linksSeventh planet from the Sun.
Seventh planet from the Sun.
Uranus is similar in composition to Neptune, and both have bulk chemical compositions which differ from that of the larger gas giants Jupiter and Saturn.
Uranus's atmosphere is similar to Jupiter's and Saturn's in its primary composition of hydrogen and helium, but it contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons.
Neptune
3 linksEighth planet from the Sun and the farthest known solar planet.
Eighth planet from the Sun and the farthest known solar planet.
Like Jupiter and Saturn, Neptune's atmosphere is composed primarily of hydrogen and helium, along with traces of hydrocarbons and possibly nitrogen, though it contains a higher proportion of ices such as water, ammonia and methane.
Neptune's mass of 1.0243 kg is intermediate between Earth and the larger gas giants: it is 17 times that of Earth but just 1/19th that of Jupiter.
Saturn
2 links
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
Saturn has a pale yellow hue due to ammonia crystals in its upper atmosphere.
Giant planet
2 linksThe giant planets constitute a diverse type of planet much larger than Earth.
The giant planets constitute a diverse type of planet much larger than Earth.
There are four known giant planets in the Solar System: Jupiter, Saturn, Uranus and Neptune.
The principal components are hydrogen and helium in the case of Jupiter and Saturn, and water, ammonia and methane in the case of Uranus and Neptune.
Hydrogen
0 linksChemical element with the symbol H and atomic number 1.
Chemical element with the symbol H and atomic number 1.
Most hydrogen is used near the site of its production, the two largest uses being fossil fuel processing (e.g., hydrocracking) and ammonia production, mostly for the fertilizer market.
This ion has also been observed in the upper atmosphere of the planet Jupiter.
Phosphine
0 linksColorless, flammable, highly toxic compound with the chemical formula PH3, classed as a pnictogen hydride.
Colorless, flammable, highly toxic compound with the chemical formula PH3, classed as a pnictogen hydride.
The dipole moment is 0.58 D, which increases with substitution of methyl groups in the series: CH3PH2, 1.10 D; (CH3)2PH, 1.23 D; (CH3)3P, 1.19 D. In contrast, the dipole moments of amines decrease with substitution, starting with ammonia, which has a dipole moment of 1.47 D. The low dipole moment and almost orthogonal bond angles lead to the conclusion that in PH3 the P−H bonds are almost entirely pσ(P) – sσ(H) and phosphorus 3s orbital contributes little to the bonding between phosphorus and hydrogen in this molecule.
It is also found in Jupiter's atmosphere.