Details

WHAT WE DO

Urea MERCK

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