urea

urea
Names
Pronunciation	urea /jʊəˈriːə/, carbamide /ˈkɑːrbəmaɪd/
	Preferred IUPAC name Urea
	Systematic IUPAC name Carbonic diamide
	Other names Carbamide; Carbonyldiamide; Carbonyldiamine; Diaminomethanal; Diaminomethanone;
Identifiers
CAS Number	57-13-6 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	635724
ChEBI	CHEBI:16199 ;
ChEMBL	ChEMBL985 ;
ChemSpider	1143 ;
DrugBank	DB03904 ;
Gmelin Reference	1378
IUPHAR/BPS	4539;
KEGG	D00023 ;
PubChem CID	1176;
RTECS number	YR6250000;
UNII	8W8T17847W ;
	InChI InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4) Key: XSQUKJJJFZCRTK-UHFFFAOYSA-N ; InChI=1/CH4N2O/c2-1(3)4/h(H4,2,3,4) Key: XSQUKJJJFZCRTK-UHFFFAOYAF;
	SMILES C(=O)(N)N;
Properties
Chemical formula	CO(NH2)2
Molar mass	60.06 g/mol
Appearance	White solid
Density	1.32 g/cm3
Melting point	133 to 135 °C (271 to 275 °F; 406 to 408 K)
Boiling point	decomposes
Solubility in water	545 g/L (at 25 °C)
Solubility	500 g/L glycerol 50 g/L ethanol; ~4 g/L acetonitrile
Basicity (pKb)	13.9
Conjugate acid	Uronium
Magnetic susceptibility (χ)	−33.4·10−6 cm3/mol
Structure
Dipole moment	4.56 D
ThermochemistryCRC Handbook
Std enthalpy of; formation	−333.19 kJ/mol
Gibbs free energy	−197.15 kJ/mol
Pharmacology
ATC code	B05BC02 (WHO) D02AE01 (WHO)
Hazards
NFPA 704 (fire diamond)	1 1 0
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	8500 mg/kg (oral, rat)
Safety data sheet (SDS)	ICSC 0595
Related compounds
Related ureas	Thiourea; Hydroxycarbamide
Related compounds	Carbamide peroxide; Urea phosphate; Acetone; Carbonic acid; Carbonyl fluoride;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Angol

Főnév

urea (tsz. ureas)

(gyógyszertan) karbamid

További információk

urea - Szótár.net (en-hu)
urea - Sztaki (en-hu)
urea - Merriam–Webster
urea - Cambridge
urea - WordNet
urea - Яндекс (en-ru)
urea - Google (en-hu)
urea - Wikidata
urea - Wikipédia (angol)

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↑ Solubility of Various Compounds in Glycerine. msdssearch.dow.com. [2014. április 13-i dátummal az eredetiből archiválva].
↑
↑ Calculated from 14−pK_a. The value of pK_a is given as 0.10 by the CRC Handbook of Chemistry and Physics, 49th edition (1968–1969). A value of 0.18 is given by pKa Data, 2001. október 24. [2003. augusztus 24-i dátummal az eredetiből archiválva].

[iupac2013-1] 1 2

[Solubility-2] ↑

[3] Solubility of Various Compounds in Glycerine. msdssearch.dow.com. [2014. április 13-i dátummal az eredetiből archiválva].

[4] ↑

[pK-5] Calculated from 14−pK_a. The value of pK_a is given as 0.10 by the CRC Handbook of Chemistry and Physics, 49th edition (1968–1969). A value of 0.18 is given by pKa Data, 2001. október 24. [2003. augusztus 24-i dátummal az eredetiből archiválva].

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