Urea, (99.5%) , CAS: 57-13-6, Pharmaceutical Excipient

China Urea, (99.5%) , CAS: 57-13-6, Pharmaceutical Excipient, Find details about China pH Value Regulator and Buffer, Urea from Urea, (99.5%) , CAS: 57-13-6, Pharmaceutical Excipient

Basic Info.

Model NO.

Pharmaceutical Excipient

Trademark

Transport Package

25kg

Specification

25kg

Origin

Nanjing

Model NO.

Pharmaceutical Excipient

Trademark

Transport Package

25kg

Specification

25kg

Origin

Nanjing

Product Desciption

Description

Urea

Characteristics:  It smells of ammonia and is salty. It's stimulating.
Purpose:Used In analysis to test for antimony and tin.Determination of lead, calcium, copper, gallium, phosphorus, iodide and nitrate.
Specifications:
Properties
  It should be colorless prismatic crystal or white crystalline powder; almost odorless, tastes salty and cool; after standing for a long time, gradually weak ammonia odor and aqueous solution show neutral reaction;
  It should be soluble in water or ethanol and insoluble in ether or chloroform.
The melting point should be 132 ~ 135 ° C
[Appraisal]
(1) Chemical reaction should be positively reacted
(2) Chemical reaction should be positive reaction
(3) The infrared spectrum should be consistent with the map of the control (spectrum set 210)
an examination
  Chloride should not exceed 0.007%
  Sulfate should not exceed 0.010%
Insoluble matter in ethanol, residual residue should not exceed 2mg
  Residue on ignition should not exceed 0.1%
  Heavy metals should not exceed 20 PPM
[Content determination]
  This product contains CH4N2O should not be less than 99.5
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Urea, (99.5%) , CAS: 57-13-6, Pharmaceutical Excipient