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Revision as of 13:14, 12 March 2014 editSmokefoot (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers74,701 edits touch up← Previous edit Revision as of 17:46, 12 March 2014 edit undoSmokefoot (talk | contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers74,701 edits controlled-release fertiliser linkNext edit →
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| Section2 = {{Chembox Properties | Section2 = {{Chembox Properties
| Formula = C<sub>6</sub>H<sub>14</sub>N<sub>4</sub>O<sub>2</sub> | Formula = C<sub>6</sub>H<sub>14</sub>N<sub>4</sub>O<sub>2</sub>
| MolarMass = | MolarMass = 174.20
| Appearance = white solid | Appearance = white solid
| Density = | Density =
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| Autoignition = }} | Autoignition = }}
}} }}
'''Isobutylidenediurea''' (abbreviated IBDU) is an ] with the formula (CH<sub>3</sub>)<sub>2</sub>CHCH(NHC(O)NH<sub>2</sub>)<sub>2</sub>. It is a derivative of urea (OC(NH<sub>2</sub>)<sub>2</sub>), which itself is highly soluble in water, but IBDU is not. It functions as a slow release ] owing to its low solubility, which occurs prior to its ] to urea.<ref name=Ullmann>{{ Ullmann | authors = C. Nitschke, G. Scherr | title = Urea Derivatives | year = 2012| doi = 10.1002/14356007.o27_o04}}</ref> '''Isobutylidenediurea''' (abbreviated IBDU) is an ] with the formula (CH<sub>3</sub>)<sub>2</sub>CHCH{NHC(O)NH<sub>2</sub>|<sub>2</sub>. It is a derivative of urea (OC(NH<sub>2</sub>)<sub>2</sub>), which itself is highly soluble in water, but IBDU is not. It functions as a ] owing to its low solubility, which occurs prior to its ] to urea.<ref name=Ullmann>{{ Ullmann | authors = C. Nitschke, G. Scherr | title = Urea Derivatives | year = 2012| doi = 10.1002/14356007.o27_o04}}</ref>


It is produced by the ] of ] and two equivalents of urea: It is produced by the ] of ] and two equivalents of urea:

Revision as of 17:46, 12 March 2014

Isobutylidenediurea
Names
Other names Isodur;diureidoisobutane;Isobutylenediurea.;Isobutylidene biurea;1,1-diureidisobutane;Isobutylidendiharnstoff;1,1'-isobutylidenedi-urea;1,1'-isobutylidenebisurea;N,N-(isobutylidene)diurea;N,N-(Isobutylidene)bisurea
Identifiers
CAS Number
ECHA InfoCard 100.025.505 Edit this at Wikidata
CompTox Dashboard (EPA)
Properties
Chemical formula C6H14N4O2
Molar mass 174.20
Appearance white solid
Solubility in water low
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references
Chemical compound

Isobutylidenediurea (abbreviated IBDU) is an organic compound with the formula (CH3)2CHCH{NHC(O)NH2|2. It is a derivative of urea (OC(NH2)2), which itself is highly soluble in water, but IBDU is not. It functions as a controlled-release fertiliser owing to its low solubility, which occurs prior to its hydrolysis to urea.

It is produced by the condensation reaction of isobutyraldehyde and two equivalents of urea:

(CH3)2CHCHO + 2 OC(NH2)2 → (CH3)2CHCH{NHC(O)NH2}2 + H2O

The slow release process is the reverse of the above reaction, which only occurs once the IBDU dissolves.

References

  1. "Urea Derivatives". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. 2012. doi:10.1002/14356007.o27_o04. ISBN 978-3527306732. {{cite encyclopedia}}: Unknown parameter |authors= ignored (help)
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