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Description
Catalogue Number	108487
Replaces	UX0065-1
Synonyms	Carbamide, Carbonyl diamide, Diaminomethanone, Carbonyldiamine

Physicochemical Information
Density	1.32 g/cm3 (20 °C)
Melting Point	134 °C
pH value	7.5 – 9.5 (480 g/l, H₂O, 25 °C)
Vapor pressure	<0.1 hPa (25 °C)
Bulk density	720 – 760 kg/m3
Solubility	1000 g/l

Toxicological Information
LD 50 oral	LD50 Rat 8471 mg/kg
LD 50 dermal	LD50 Rat 8200 mg/kg

Safety Information according to GHS
RTECS	YR6250000
Storage class	10 – 13 Other liquids and solids
WGK	WGK 1 slightly hazardous to water
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Storage and Shipping Information
Storage	Store at +15°C to +25°C.

Specifications
Assay (ex N)	99.0 – 100.5 %
Assay (ex N, calc. on dried substance)	99.0 – 101.5 %
Purity (DSC (differential scanning calorimetry))	≥ 99.5 mol%
Identity (IR-spectrum)	passes test
Appearance of solution (10 %; Wasser; color)	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 %
Heavy metals (ACS)	≤ 0.001 %
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

Merck 108487 1000 Urea Gr for Analyasis Acs 1 KG.