اوره 500 گرمی کد 108487 مرک

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

Product Information
CAS number	57-13-6
EC number	200-315-5
Grade	ACS,Reag. Ph Eur
Hill Formula	CH₄N₂O
Chemical formula	CO(NH₂)₂
Molar Mass	60.06 g/mol
HS Code	3105 10 00
Structure formula Image

Applications
Application	Urea GR for analysis ACS,Reag. Ph Eur. CAS No. 57-13-6, EC Number 200-315-5.

Physicochemical Information
Density	1.34 g/cm3 (20 °C)
Melting Point	133 °C
pH value	9 (100 g/l, H₂O, 20 °C)
Vapor pressure	<0.1 hPa (20 °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 water endangering
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 +30°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 %
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