Compusi carbonilici propr fizice Flashcards

1
Q

Ce fel de leg se exercita asupra leg C=O

Cum e leg C=O?(carbonil)

A

Se exercita leg dipol-dipol(cele mai puternice) si forte Van der Waals de dispersie datorita polaritatii moleculelor aldehidelor si cetonelor

Leg carbonil este polara

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2
Q

P.f ale compusilor carbonilici

A

Cetonele au p.f. mai ridicate decat aldehidele coresp

P.f creste cu cresterea masei molare si a polaritatii molec

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3
Q

Ce compusi carb se dizolva in apa in orice proportie/sunt miscibile cu apa?

A

Formaldehida,acetaldehida si acetona;

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4
Q

Cum este mirosul de acetaldehida?

Dar a benzaldehidei?

A

De mere verzi;

migdale amare

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5
Q

2 Utilizari in propr organoleptice

A

1) Formaldehida are miros puternic dezagreabil(de formol)

2) Ald si cetonele lichide au miros specific,fiind utilizate in parfumerie

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6
Q

2 utilizari a benzencarbaldehida/aldehida benzoica

2 utilizari si 2 propr fizice ale metanalului

A

Sinteza unor coloranti si in industria cosmetica la parfumarea sapunurilor

Dezinfectant,in stare gazoasa;ind pielariei,la fabricarea unor coloranti
toxic puternic pt microorg.,denaturand proteinele;

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7
Q

Stare de agregare a aldehidei formice

A

Gazoasa ca dezinfectant sau in sol apoase de c=40%,numita formol/formaldehida

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8
Q

F.M Cuminol

A

insert photo here

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9
Q

Ce comp carb sunt solubili in apa si ce leg de stabilesc in amestec?

Ce se intampla cu solubilitatea comp carbonilici cu apa?

A

Termenii inf ai comp sunt solubili in apa datorita leg de H stabilite intre molec comp carb si apa;

Odata cu cresterea masei molare,scade solubilitatea in apa;

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