471-46-5 Usage
Description
Oxamide, also known as H2NCOCONH2, is a dicarboxylic acid diamide of oxalic acid. It is a white, fine, crystalline powder with a molecular weight of 80.07. Oxamide is sparingly soluble in water and insoluble in various organic solvents. It melts at about 350 °C, with accompanying decomposition. Due to its low solubility in water, the compound is granulated and used as a slow-release nitrogen fertilizer.
Uses
Used in Nitrocellulose Preparations:
Oxamide is used as a stabilizer for nitrocellulose preparations, providing enhanced stability and performance in various applications.
Used in APCP Rocket Motors:
In the aerospace industry, Oxamide is utilized as a high-performance burn rate suppressant in APCP (ammonium perchlorate composite propellant) rocket motors, contributing to improved combustion control and overall performance.
Used in Agriculture:
Oxamide, a diamide of oxalic acid, is a white crystalline and non-hygroscopic fertilizer containing about 32% nitrogen, most of which is water-insoluble at 25°C. It is made from cyanogen hydrolysis in an acid medium and releases nitrogen slowly, making it an ideal choice for use as a slow-release fertilizer. Oxamide is decomposed by soil micro-organisms in the soil, providing a sustained supply of nitrogen for plant growth.
Safety Profile
Poison by ingestion and intraperitoneal routes. An eye irritant. When heated to decomposition it emits toxic fumes of NOx. See also AMIDES.
Purification Methods
Crystallise oxamide from water, grind it and dry it in an oven at 150o. [Beilstein 2 IV 1860.]
Check Digit Verification of cas no
The CAS Registry Mumber 471-46-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,7 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 471-46:
(5*4)+(4*7)+(3*1)+(2*4)+(1*6)=65
65 % 10 = 5
So 471-46-5 is a valid CAS Registry Number.
InChI:InChI=1/C2H4N2O2/c3-1(5)2(4)6/h(H2,3,5)(H2,4,6)
471-46-5Relevant articles and documents
Reaction in the Bicontinuous Phase of a Nonaqueous Microemulsion: Amidation of the Olefin C8H17CH=CH2 by γ Radiolysis
Rico, I.,Lattes, A.,Das, K. P.,Lindman, B.
, p. 7266 - 7267 (1989)
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Hirst,Percival,Smith
, p. 617 (1933)
Brown et al.
, p. 3698 (1962)
Process method of co-production of oxamide and carbamic acid ester through ammonia ester exchange method
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Paragraph 0048; 0049, (2016/10/08)
The invention discloses a process method of co-production of oxamide and carbamic acid ester through an ammonia ester exchange method. According to the process method, urea and oxalic acid diethyl serve as raw materials, and two products, namely the oxamide and the carbamic acid ester, can be obtained at the same time through a series of ammonia ester exchange reactions. By means of the process, the problems that products are singular, and by-products affect the reaction process in an original technology for synthesizing oxamide through oxalic acid diethyl ammonolysis and a technology for synthesizing carbamic acid ester through urea alcoholysis are solved; besides, due to the fact that urea is obtained through CO and NH synthesis, NH is replaced with urea, and the process method has active significance in converting CO into high added-value chemicals and efficiently utilizing CO.
Transformation of thioamide compounds to corresponding amides using 12-Tungstosilicic acid
Nasr-Esfahani, Masoud,Montazerozohori, Morteza,Moghadam, Majid,Mohammadpoor-Baltork, Iraj,Moradi, Sareh
experimental part, p. 261 - 266 (2010/06/19)
12-Tungstosilicic acid (H4SiW12O40) is applied for the conversion of a series of thioamides to their corresponding oxo analogues in excellent yields in acetonitrile. In the case of thioketones, no reaction is observed under these conditions. The reusability of the catalyst also is investigated.
