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Urea 99% AR Grade Reagent

Cas Number:57-13-6
Formula: CH4N2O
Molar Mass:60.06
EC Number:200-315-5

Quantity:
  • AR
  • LABOR
  • 155202129

Urea 99% AR Grade Reagent


Cas Number:57-13-6

Formula: CH4N2O

Molar Mass:60.06

EC Number:200-315-5


Physicochemical properties:

White square prismatic crystals or powder with the odor of ammonia. When the heating temperature is higher than its melting point, it is decomposed into biuret, ammonia and cyanuric acid. 1 g is dissolved in 1 ml of water, 10 ml of 95% ethanol, 1 ml of 95% boiling ethanol, 20 ml of anhydrous ethanol, 6 ml of methanol and 2 ml of glycerol. Soluble in concentrated hydrochloric acid, almost insoluble in ether and chloroform. The pH of the 10% aqueous solution is 7.2.


Usage:

It is used in the analysis to test bismuth and tin. Determination of lead, calcium, copper, gallium, phosphorus, iodide and nitrate. When blood urea nitrogen is measured, a standard solution is used to measure serum bilirubin. Separation of hydrocarbons. Decomposes nitrogen oxides and nitrous acid. Prepare the medium. The stabilizer for the determination of uric acid by the Forint method is homogeneously precipitated.


Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.0 min

Transparency of solution

2 max

Insoluble in water,%

0.005 max

Residue on ignition(as SO4) ,%

0.01 max

Chloride(Cl),%  

0.0003 max

Sulfate(SO4),%

0.001 max

Ammonia(NH3),%

0.005 max

Iron(Fe),%

0.0002 max

Heavy metals(as Pb),%

0.0002 max

Biuret,%

0.2 max


Not a hazardous substance or mixture.


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