Urea for biochemistry, Millipore®
Supplier: Merck
Synonyms:
Carbonyl diamide, Carbamide, Diaminomethanone, Carbonyldiamide
M-Clarity™ quality level = MQ100
1.08488.0250
1.08488.1000
1.08488.5000
1.08488.9050
1.08488.9010
1.08488.0250EA
42.4
GBP
1.08488.0250
1.08488.1000
1.08488.5000
1.08488.9050
1.08488.9010
Urea for biochemistry, Millipore®
Urea
Formula:
NH₂CONH₂ MW: 60,06 g/mol Boiling Pt: 197 °C (1013 hPa) Melting Pt: 134 °C Density: 1,32 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00008022 CAS Number: 57-13-6 EINECS: 200-315-5 REACH: 01-2119463277-33 Merck Index: 13,09935 |
Specification Test Results
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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