Harnstoff für die Biochemie, Millipore®

Lieferant: Merck

Synonyms: UreaCarbamidAminoameisensäureamidCarbonyldiamid

M-Clarity™ Qualitätsstufe = MQ100

1.08488.1000EA 103 CHF
1.08488.1000 1.08488.0250 1.08488.9050 1.08488.9010 1.08488.5000
Harnstoff für die Biochemie, Millipore®
Harnstoff
Formel: NH₂CONH₂
MW: 60,06 g/mol
Melting Pt: 134 °C
Dichte: 1,32 g/cm³ (20 °C)
Lager Temperatur: Raumtemperatur
MDL Number: MFCD00008022
CAS-Nummer: 57-13-6
EINECS: 200-315-5
REACH: 01-2119463277-33
Merck Index: 12,10005
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Spezifikation Testergebnisse

Purity (DSC (differential scanning calorimetry)) ≥ 99.5 mol%
Identity (IR-spectrum) passes test
Appearance Colorless crystals or white crystalline powder.
Appearance of solution (100 g/l, water) Clear and colorless.
APHA (5M, water) ≤ 10 APHA
Turbidity (5M, water) ≤ 2.0 NTU
pH (5M, water)
Insoluble matter ≤ 0.0005 %
Conductivity (5M, water, 25 °C) ≤ 15 µS/cm
Melting point (DSC (differential scanning calorimetry)) 132 - 135 °C
UV-Absorption (260 nm; 8 mol/l; 1 cm; water) ≤ 0.1
UV-Absorption (280 nm; 8 mol/l; 1 cm; water) ≤ 0.1
Cyanide (CN) ≤ 0.000001 %
Chloride (Cl) ≤ 0.0005 %
Sulfate (SO₄) ≤ 0.001 %
Heavy metals (as Pb) ≤ 0.0004 %
Fe (Iron) ≤ 0.00002 %
NH₄ (Ammonium) ≤ 0.00001 %
Biuret ≤ 0.05 %
Sulfated ash (800 °C) ≤ 0.01 %
DNases (Exo- and endonucleases) not detectable
RNases not detectable

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