Oxamid

Bezeichnung:Oxamid

CAS-Nr471-46-5

Englisch Name:Oxamide

CBNumberCB2495794

SummenformelC2H4N2O2

Molgewicht88.07

MOL-Datei471-46-5.mol

Synonyma

Oxamid

Oxamid physikalisch-chemischer Eigenschaften

Schmelzpunkt	>300 °C (lit.)
Siedepunkt	162.99°C (rough estimate)
Dichte	1,667 g/cm³
Brechungsindex	1.4264 (estimate)
storage temp.	Sealed in dry,Room Temperature
Löslichkeit	0.37g/l
Aggregatzustand	Fine Crystalline Powder
pka	13.28±0.50(Predicted)
Farbe	White
Wasserlöslichkeit	insoluble
Merck	14,6918
BRN	1743262
CAS Datenbank	471-46-5(CAS DataBase Reference)
NIST chemische Informationen	Oxalamide(471-46-5)
EPA chemische Informationen	Ethanediamide (471-46-5)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	22-36/38-36/37/38
S-Sätze:	26-36-37/39
RIDADR	2811
WGK Germany	3
RTECS-Nr.	RO4900000
TSCA	Yes
HazardClass	6.1(b)
PackingGroup	III
HS Code	29241900
Toxizität	LD50 orl-rat: 447 mg/kg GISAAA 47(7),78,82

Gefahreninformationscode (GHS)

Oxamide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/38:Reizt die Augen und die Haut.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
white fine crystalline powder
Chemische Eigenschaften
Oxamide, H2NCOCONH2, mol wt 80.07, is sparingly soluble in water and insoluble in various organic solvents. It melts at about 350 °C, with accompanying decomposition. Because of the low solubility in water, the compound is granulated and used as a slow-release nitrogen fertilizer.
Verwenden
Oxamide is used as a stabilizer for nitrocellulose preparations. It also finds use in APCP rocket motors as a high performance burn rate suppressant.
Definition
ChEBI: A dicarboxylic acid diamide of oxalic acid.
synthetische
Oxamide can be prepared, for example, by pyrolyzing ammonium oxalate or by allowing hydrogen cyanide to react with hydrogen peroxide. It is also known to prepare oxamide by a reaction between dimethyl oxalate and ammonia, wherein methanol is produced in addition to oxamide. The preparation was carried out as a batch process in a liquid phase, with methanol acting as a solvent into which the dimethyl oxalate and ammonia are fed. The oxamide was separated from the solution by crystallization, and the remaining mother liquor was distilled to recover methanol and ammonia, which had been left over from the reaction.
Landwirtschaftliche Anwendung
Oxamide (H₂ NCOCONH₂ ), a diamide of oxalic acid, is a white crystalline and non-hygroscopic fertilizer containing about 32% nitrogen, most of which is waterinsoluble at 25°C. Oxamide is made from cyanogen hydrolysis in an acid medium. It releases nitrogen slowly and hence is used as a slow-release fertilizer. It is decomposed by soil micro-organisms in the soil.
Sicherheitsprofil
Poison by ingestion and intraperitoneal routes. An eye irritant. When heated to decomposition it emits toxic fumes of NOx. See also AMIDES.
läuterung methode
Crystallise oxamide from water, grind it and dry it in an oven at 150o. [Beilstein 2 IV 1860.]

Oxamide Upstream-Materialien And Downstream Produkte

Oxamid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

471-46-5, Oxamide Verwandte Suche:

Send Inquriy