15604
Urea
puriss., meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%, 99.0-101.0% (calc. on dry substance)
Synonym(s):
Carbamide, Carbonyldiamide
About This Item
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grade
puriss.
Quality Level
Assay
99.0-100.5%
99.0-101.0% (calc. on dry substance)
form
solid
quality
meets analytical specification of Ph. Eur., BP, USP
impurities
alkalic reac. substances, complies
≤0.001% heavy metals (as Pb)
≤0.04% insoluble in ethanol
≤0.05% ammonium (NH4)
≤0.1% biuret(carbamylurea)
ign. residue
≤0.1% (as SO4)
loss
≤1.0% loss on drying, 105 °C, 1 h
mp
132-135 °C (lit.)
132-135 °C
solubility
H2O: soluble 480 g/L at 20 °C
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This Item | U5128 | 1.04166 | 1.08486 |
---|---|---|---|
H2O: soluble 480 g/L at 20 °C | H2O: soluble 480 g/L at 20 °C | - | 1000 g/L |
200 | 200 | 500 | 500 |
solid | solid | granular | crystalline, solid |
1.335 g/mL at 25 °C (lit.) | 1.335 g/mL at 25 °C (lit.) | 1.335 g/mL at 25 °C (lit.) | 1.335 g/mL at 25 °C (lit.) |
132-135 °C (lit.) | 132-135 °C (lit.) | 132-135 °C (lit.) | 132-135 °C (lit.) |
General description
Urea can be prepared from ammonia and carbon-dioxide, via Haber-Bosch process.[2] It can also be used to prepare urea-formaldehyde resins, via condensation reaction.[3]
Application
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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