Urea anhydrous reagent grade

Test item

Specification

AR

CP

Assay (NaBr) /%

≥99.0

≥98.0

Than spin photometric

66.2°~66.7°

66.2°~66.7°

Clarify degrees experiment

Conform

Conform

Water insoluble%

≤0.002

≤0.004

Dry weightlessness %

≤0.03

≤0.06

Burning residua%

≤0.01

≤0.02

Acidity (H)/(mmol/100g)

≤0.08

≤0.12

Chloride (Cl) /%

≤0.0005

≤0.002

Sulfate (SO4) /%

≤0.002

≤0.008

Ferric (Fe) /%

≤0.00005

≤0.0002

Heavy metal (Pb) /%

≤0.0001

≤0.0003

Reducing sugar

Conform

Conform