Biuret

Biuret is a chemical compound with the chemical formula C₂H₅N₃O₂. It is also known as carbamylurea. It is the result of condensation of two molecules of urea and is a problematic impurity in urea-based fertilizers. This white solid is soluble in hot water. Biuret was first prepared and studied by Gustav Heinrich Wiedemann (1826 - 1899) for his doctoral dissertation, which was submitted in 1847. His findings were reported in several articles.

The term "biuret" also describes a family of organic compounds with the functional group -(HN-CO-)₂N-. Thus dimethyl biuret is CH₃HN-CO-NR'-CO-NHCH₃. A variety of organic derivatives are possible.

Preparation

The parent compound can be prepared by heating urea above the melting point at which temperature ammonia is expelled:

Under related conditions, pyrolysis of urea affords triuret ((H₂N-CO-NH)₂CO). In general, organic biurets (those with alkyl or aryl groups in place of one or more H atoms) are prepared by trimerization of isocyanates. For example the trimer of 1,6-hexamethylene diisocyanate is also known as HDI-biuret.

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Podcasts:

Biuret

ALBUMS

Be Full Of Spirit: Beautiful Violet released: 2007

Be Full Of Spirit: Beautiful Violet

Released 2007

Without U
거짓말
오늘밤은 잠든 후에도 곁에 있어줘
Fly My Voice
Mama
Do You Wanna Get Me? (낭만적 편집증)
Love and Hate
사랑해요
Violet
웃지 않는 공주
푸른 사막의 끝

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I wanna dance with you this whole night
I hope the music never slows up
I hope this place don't never close up
Hold tight
'cause you're the only one who feels right
Girl I know it's now or never
I wanna dance with you forever
So hold on tight - never let me go, baby
'cause I can feel the rhythm of your love
And when you get yourself in motion
Girl it's tearin' my emotions right in two
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All the stars they will surround us
We will be so glad we found us
So hold on tight - never let me go, baby
'cause I can feel the rhythm of your love
And when you get yourself in motion
I get lovin' notions all for you - yes I do
Hold tight
And we will dance into the moonlight
I hope the music never slows up

Biuret

Preparation

Podcasts:

Biuret

ALBUMS

Be Full Of Spirit: Beautiful Violet

Hold Tight

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