UAN is a solution of urea and ammonium nitrate in water used as a fertilizer. The combination of urea and ammonium nitrate has an extremely low critical relative humidity (18% at 30 °C) and can therefore only be used in liquid fertilizers. The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N) known as UN32 or UN-32, which consists of 45% ammonium nitrate, 35% urea and only 20% water. Other grades are UAN 28, UAN 30 and UAN 18.
The solutions are quite corrosive towards mild steel (up to 0.5 inches (1.3 cm) per year on C1010 steel) and are therefore generally equipped with a corrosion inhibitor to protect tanks, pipelines, nozzles, etc. Urea–ammonium nitrate solutions should not be combined with calcium ammonium nitrate (CAN-17) or other solutions prepared from calcium nitrate. A thick, milky-white insoluble precipitate forms that may plug nozzles.
UAN is a solution of urea and ammonium nitrate in water used as a fertilizer. The combination of urea and ammonium nitrate has an extremely low critical...
Uan Muhuggiag is an archaeological site in Libya that was occupied by pastoralists between the early Holocene and mid-Holocene; the Tashwinat mummy, which...
Uan Rasey (August 22, 1921 – September 26, 2011) was an American musician, best known for his studio work as a trumpet player. Rasey was born in Glasgow...
Viktor Vladimirovich Uan (Russian: Виктор Владимирович Уан; born 19 August 1994) is a Russian former football player. He made his debut in the Russian...
Traditional Chinese script: 臺灣 or 台灣 Mandarin Pinyin: Táiwān Hokkien: Tâi-uân Sixian Hakka: Tǒi-vǎn Amis: Taywan Paiwan: Taiwan Traditional Chinese script:...
This article contains Manchu text. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Manchu alphabet. The...
Mariuti Uan (born 22 January 1986) is a sprinter from Kiribati. He was his country's only athlete at the 2005 World Championships in Athletics, running...
vernacular reading (both uaⁿ), the latter more commonly used in Teochew (安全 uaⁿ-tshuâng, 安心 uaⁿ-sim, 安穩 uaⁿ-úng, 治安 tī-uaⁿ, etc), while being rare in...
progenitors of modern, cultivated watermelons. Wild watermelon seeds were found in Uan Muhuggiag, a prehistoric site in Libya that dates to approximately 3500 BC...
unlikely if they had died of a plague – the cause of their deaths is a mystery. Uan Muhuggiag appears to have been inhabited from at least the 6th millennium...
vegetation (e.g., Cenchrus, Digitaria) in the Central Sahara (e.g., Uan Tabu, Uan Muhuggiag) was shared by Late Acacus hunter-gatherers with incoming...
Muthukumar Edited by Appu N. Bhattathiri Music by Leo Tom Production company UAN Film House Distributed by Line of Colour Release date February 2020 (2020-02)...
of course, that of urea itself (46%). UAN allows use of ammonium nitrate without the explosion hazard. In UAN accounts for 80% of the liquid fertilizers...
A muon (/ˈm(j)uːɑːn/ M(Y)OO-on; from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric...
Central Sahara. The Central Sahara (e.g., Tin Hanakaten, Tin Torha, Uan Muhuggiag, Uan Tabu) was a major intermediary area for the distribution of domesticated...
fanguan is fan-guan, while fangwan is fang-wan (and equivalent to *fang-uan). With this convention, an apostrophe only needs to be used to mark an initial...
Global Information