Urea, also called carbamide (because it is a diamide of carbonic acid), is an organic compound with chemical formula CO(NH2)2. This amide has two amino...
62 KB (7,110 words) - 11:12, 26 August 2024
Blood urea nitrogen (BUN) is a medical test that measures the amount of urea nitrogen found in blood. The liver produces urea in the urea cycle as a waste...
5 KB (607 words) - 16:53, 9 March 2024
The urea cycle (also known as the ornithine cycle) is a cycle of biochemical reactions that produces urea (NH2)2CO from ammonia (NH3). Animals that use...
21 KB (2,219 words) - 13:28, 25 July 2024
medicine, the urea-to-creatinine ratio (UCR), known in the United States as BUN-to-creatinine ratio, is the ratio of the blood levels of urea (BUN) (mmol/L)...
16 KB (1,958 words) - 15:50, 15 April 2024
Hydrogen peroxide–urea (also called Hyperol, artizone, urea hydrogen peroxide, and UHP) is a white crystalline solid chemical compound composed of equal...
15 KB (1,405 words) - 09:56, 22 June 2024
Diesel exhaust fluid (redirect from Aqueous urea solution)
created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. DEF is consumed in a selective...
21 KB (2,279 words) - 01:48, 22 August 2024
Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, is a nontransparent thermosetting...
20 KB (2,227 words) - 05:54, 21 August 2024
Urea nitrate is a fertilizer-based high explosive that has been used in improvised explosive devices in Afghanistan, Pakistan, Iraq, and various terrorist...
6 KB (452 words) - 18:13, 3 April 2024
Bromisoval (redirect from Bromoisovaleryl urea)
followed by reaction with urea. Acecarbromal Carbromal Apronal US patent 914518, Saam, E., "Alpha-halogen-isovaleryl-urea and process of making the same"...
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In enzymology, a urea carboxylase (EC 6.3.4.6) is an enzyme that catalyzes the chemical reaction ATP + urea + HCO3- ⇌ {\displaystyle \rightleftharpoons...
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Urea phosphate is a 1:1 combination of urea and phosphoric acid that is used as a fertilizer. It has an NPK formula of 17-44-0, and is soluble in water...
5 KB (453 words) - 05:24, 15 July 2024
Urea, also known as carbamide-containing cream,[clarification needed] is used as a medication and applied to the skin to treat dryness and itching such...
8 KB (554 words) - 19:27, 22 February 2024
Uremia is the term for high levels of urea in the blood. Urea is one of the primary components of urine. It can be defined as an excess in the blood of...
33 KB (3,274 words) - 05:34, 21 July 2024
In chemistry, ureas are a class of organic compounds with the formula (R2N)2CO where R = H, alkyl, aryl, etc. Thus, in addition to describing the specific...
6 KB (609 words) - 15:11, 6 June 2024
The urea breath test is a rapid diagnostic procedure used to identify infections by Helicobacter pylori, a spiral bacterium implicated in gastritis, gastric...
7 KB (819 words) - 19:09, 28 May 2024
UAN (redirect from Urea ammonium nitrate)
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...
2 KB (212 words) - 14:02, 30 June 2023
Coated urea fertilizers are a group of controlled release fertilizers consisting of prills of urea coated in less-soluble chemicals such as sulfur, polymers...
4 KB (513 words) - 22:54, 23 March 2024
Urease (redirect from Urea amidohydrolase)
catalyze the hydrolysis of urea into carbon dioxide and ammonia: (NH2)2CO + H2O urease→ CO2 + 2NH3 The hydrolysis of urea occurs in two stages. In the...
34 KB (4,155 words) - 22:51, 3 July 2024
Imidazolidinyl urea is an antimicrobial preservative used in cosmetics [citation needed]. It is chemically related to diazolidinyl urea which is used in...
5 KB (197 words) - 18:27, 14 May 2023
Diazolidinyl urea is an antimicrobial preservative used in cosmetics. It is chemically related to imidazolidinyl urea which is used in the same way. Diazolidinyl...
6 KB (355 words) - 21:39, 24 March 2024
A urea transporter is a membrane transport protein, transporting urea. Humans and other mammals have two types of urea transport proteins, UT-A and UT-B...
6 KB (659 words) - 17:37, 3 December 2023
market and hoarding of urea. Urea that is coated with neem tree seed oil is called neem-coated urea. In January 2015, the urea manufacturers were mandated...
3 KB (273 words) - 14:10, 26 June 2024
Nitrourea (redirect from Nitro urea)
explosive compound synthesized by the nitration of urea or by way of a dehydration reaction of urea nitrate. "Nitrourea". CAMEO Chemicals. NOAA. 2.4. Ingersoll...
2 KB (50 words) - 16:43, 1 May 2024
Hydrazine (redirect from Urea process for hydrazine production)
chloride byproduct: NH2Cl + NH3 → N2H4 + HCl Related to the Raschig process, urea can be oxidized instead of ammonia. Again sodium hypochlorite serves as the...
51 KB (5,273 words) - 06:02, 29 July 2024
Basic metabolic panel (redirect from Urea, electrolytes, creatinine)
majority of the same biochemical tests are called urea and electrolytes (U&E or "U and Es"), or urea, electrolytes, creatinine (UEC or EUC or CUE), and...
5 KB (492 words) - 09:35, 4 February 2024
Carbonation (section Urea production)
of urea:In 2020, worldwide production capacity was approximately 180 million tonnes. As a fertilizer, it is a source of nitrogen for plants. Urea production...
4 KB (445 words) - 01:23, 21 January 2024
Urea can crystallise with other compounds. These can be called urea adducts or if a solvent is involved, a urea solvate, and the process is called urea...
21 KB (1,249 words) - 05:06, 5 July 2024
Barbital (redirect from Diethylmalonyl urea)
groups, they prepared diethylacetyl urea, diethylmalonyl urea (i.e., Barbital itself), and dipropylmalonyl urea. All three were found to be hypnotics:...
12 KB (1,173 words) - 02:08, 17 August 2024
within living things. Friedrich Wöhler's conversion of ammonium cyanate into urea in 1828 is often cited as the starting point of modern organic chemistry...
5 KB (525 words) - 05:31, 11 July 2024
Urine urea nitrogen (UUN) refers to a test that measures the urine urea to assess nitrogen balance. Urea nitrogen is the end product of breakdown of proteins...
3 KB (347 words) - 06:26, 5 May 2024