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Ethyl cyanohydroxyiminoacetate (oxyma) is the oxime of ethyl cyanoacetate and finds use as an additive for carbodiimides, such as dicyclohexylcarbodiimide (DCC) in peptide synthesis. It acts as a neutralizing reagent for the basicity or nucleophilicity of the DCC due to its pronounced acidity ( pKa 4.60) and suppresses base catalyzed side ...
Water for injection is generally made by distillation or reverse osmosis. [5] It should contain less than a mg of elements other than water per 100 ml. [5] Versions with agents that stop bacterial growth are also available. [5] In the UK, some hospitals offer subcutaneous injections of water directly for treating back pain in labour.
In a reciprocating engine, the use of water injection, also called anti-detonation injection or ADI, is used to prevent engine knocking also known as "detonation". [3] Commonly found on large radial engines with pressure carburetors , it is a mixture of water and alcohol injected into the carburetor at high power settings.
From the degassing drum water passed to the injection filters. [3] Water was filtered in the water injection filters, one duty and one on standby/backwash. From the filters water was routed to the water injection pumps. The three water injection pumps each had a capacity of 221 m 3 /hr with a differential head of 2068.5 metres (209 bar). The ...
Drug companies have made it harder to buy midazolam for executions. The etomidate was followed by rocuronium bromide, a paralytic, and finally, potassium acetate in place of the commonly used potassium chloride injection to stop the heart. Potassium acetate was first used for this purpose inadvertently in a 2015 execution in Oklahoma. [24]
In gastroenterology, butyl cyanoacrylate is used to treat bleeding gastric varices, which are dilated veins that occur in the setting of liver cirrhosis or thrombosis of the splenic vein. [7] The gastric varices are accessed by endoscopy, which uses a flexible fibre-optic camera to enter the stomach. They are injected with a catheter needle ...
DEHA is largely used as an oxygen scavenger in water treatment.. It is a volatile oxygen scavenger [2] [3] and reacts in a ratio of 2.8/1 DEHA/O2.It is employed in high pressure (>70 bar) boiler systems due to a very low rate of reaction at low temperatures and pressures.
Cyanoacetic acid is used to do cyanoacetylation, first convenient method described by J. Slätt. [4] It is about 1000x more acidic than acetic acid, with a pK a of 2.5. Ka=2.8x10^-3 Upon heating at 160 °C, it undergoes decarboxylation to give acetonitrile: HO 2 CCH 2 CN → CO 2 + CH 3 CN