1.08487
Urea
GR for analysis ACS,Reag. Ph Eur
Synonym(s):
Carbamide, Carbonyl diamide, Diaminomethanone, Carbonyldiamine, Carbamide, Carbonyldiamide
About This Item
Recommended Products
grade
ACS reagent
Quality Level
agency
reag. Ph. Eur.
vapor pressure
<0.1 hPa ( 20 °C)
form
solid
potency
8471 mg/kg LD50, oral (Rat)
8200 mg/kg LD50, skin (Rat)
technique(s)
titration: suitable
pH
9 (20 °C, 100 g/L in H2O)
mp
132-135 °C (lit.)
density
1.335 g/mL at 25 °C (lit.)
bulk density
720‑760 kg/m3
storage temp.
15-25°C
SMILES string
NC(N)=O
InChI
1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
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Application
Linkage
Analysis Note
Assay (ex N, calc. on dried substance): 99.0 - 101.5 %
Purity (DSC (differential scanning calorimetry)): ≥ 99.5 %
Identity (IR-spectrum): passes test
Appearance of solution (10 %; Wasser; colour): colourless
Appearance of solution (10 %; Wasser; clarity): clear
In water insoluble matter: ≤ 0.003 %
Acidity, Alkalinity: ≤ 0.0005 meq/g
Melting point (DSC): 132 - 135 °C
NH₄ (Ammonium): ≤ 0.0500 %
Chloride (Cl): ≤ 0.0005 %
Sulfate (SO₄): ≤ 0.001 %
Heavy metals (as Pb): ≤ 0.0004 %
Biuret: ≤ 0.05 %
Sulfated ash (600 °C): ≤ 0.005 %
Cu (Copper): ≤ 0.0001 %
Fe (Iron): ≤ 0.0001 %
Pb (Lead): ≤ 0.0002 %
Loss on Drying (105°C): ≤ 1.0 %
Corresponds to ACS, Reag. Ph Eur
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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