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langfang tianke biotechnology
professional production base of general chemical reagent and pharmaceutical accessories
hotline: 86-15076659665
products
products
urea

molecular formula: ch4n2o
molecular weight: 60.06
properties: white column or white powder. melting point is 132.7℃ (breaks down). soluble in water, ethyl alcohol and benzene, slightly soluble in ether, insoluble in trichloromethane.
uses: as analytical reagent and stabilzier. it can be used in organic synthesis.
standard: the maximum content of impurities is in percentage content

standard/item

analytical pure-ar

chemical pure-cp

assay /%

≥99.0

≥99.0

clarity test

qualified

qualified

water insoluble matter/%

≤0.005

≤0.02

ignition residue (sulfate)

≤0.01

≤0.02

chloride(cl)

≤0.0005

≤0.001

sulfate(so4)

≤0.001

≤0.005

ammonia (nh4)

≤0.005

≤0.005

iron (fe)

≤0.0002

≤0.0005

heavy metal(pb)

≤0.0002

≤0.0005

biuret (c2h5n3o2)

≤0.2

≤0.4

packing: woven bag, kraft bag or fiber drum lined with plastic, net weight is 25kg.

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langfang tianke biotechnology co., ltd.
add: sanghang industrial park, dacheng county,
hebei, china
tel: 86-15076659665 manager ma
fax: 86-316-5569332 
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