Alchine Flashcards by Raluca Lazar

Q

lungimea leg triple

A

1,204

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Q

izomerie

A

de fct, de poz, de catena, optica

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Q

unde au polii alchinele marginale

A

pol pozitiv H, pol negativ C

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Q

Ce caracter au at de H legati de un C din tripla

A

slab acid

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Q

constanta de aciditate a alchinelor cu tripla marginala

A

10 la -25

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Q

dehidrohalogenarea comp dihalogenati vicinali

A

baze tari alcaline, sol alcoolice la t

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Q

Care alchine sunt gaze

A

acetilena, propina, 1-butina

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Q

in ce conditii sun gaze alchinele de mai sus

A

cond obisnuite (20)

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Q

Ce alchine au pf mai scazute

A

cele marginale

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Q

actilena are pf mai mic ca

A

2-butina

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Q

si mai mare ca

A

1-pentina,1-butina, propina

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Q

de ce este acetilena soluila in apa

A

dat polaritatii legaturii

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Q

cat dizolva 1 vol de apa si la ce t

A

1,7 vol acetilena la 0C

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Q

c% a acetilenei in sol saturata de apa

A

0,20%

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Q

C% molara a acetilenei

A

0,075m/L

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Q

cat dizolva 1 vol acetilena si la ce pres

A

300 vol acetilena la 12 atm

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Q

in cate etape are loc halogenarea

A

2

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Q

cum e reactia acetilenei cu clorul in stare gazoasa

A

violenta, puternic exoterma

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Q

aditia hidracizilor cond

A

120-170 (170-200) HgCl2

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Q

in cate etape are loc aditia hidracizilor

A

in 2 etape

Q

PVC solubilitate

A

cetone, comp halo, esteri

Q

prop fizice

A

relativ dur, solid, se inmoaie la 90-95c

Q

Kucerov cond

A

HgSO4 si H2SO4

Q

aditia HCN cond

A

CuCl2, NH4Cl

PNA caracteristici (5)

rez la purtare, elasticitate, flexibilitate, tuseu bun, nu sunt hidroscopice

Aditia ac acetic cond

H3C-COO)2Zn la 200-250C

PAV proprietati

solid, netoxic,

solubilitate

in solventi org

De ce hidrolizeaza PAV

ca are gr ester

Alcoolul polivinilic

solid, cul alba,

solubilitate

solubil in apa, glicol, glicerina

dimerizarea acetilenei

cu2cl2, nh4cl

neoprenul prop

mai rezistent la oxidare ca si cauciucul

trimerizarea acetilenei cond

600-800

tetramerizarea ce formeaza

ciclooctatetraena

ce rezulta prin aditia alc inferiori la acetilena

monomeri vinilici

aditia acetilenei la comp carbonilici in rap 1;1

cu2c2

ce rezulta

alcooli nesaturati

1;2 ce rezulta

dioli

ce formeaza acetilena cu bayer

acid oxalic

alchenele marginale ce formeaza

cetoacizi

alchinele interne ce formeaza

dicetone

butandiona alte nume

diacetil, dimetilglioxal

la ce t se formeaza acetilura monosodica

150c

ce comp sunt acetilurile met alca si alca-pam

compusi ionici, stabili la t obisnuita

ce culoare are acetilura de diargint

alb-galbui

c culoare are acetlura de dicupru

brun roscat

ce se intampla cu acetilurile tranz la incalzire

sunt puternic explozive

cum arde acetilena

cu flacara luminoasa