Klorendiinianhydridi Ominaisuudet | Valmistus ja käyttö | Lähteet | NavigointivalikkoInfobox OKVirheellinen NIMI-arvoChlorendic anhydride – Substance summaryKlorendiinianhydridin kansainvälinen kemikaalikorttiKirja Googlen teoshaussa

Anhydridit


anhydrideihinorgaaninen yhdistepalonsuoja-aineenahydrolysoituuklorendiinihapoksietanoliinheksakloorisyklopentadieeninmaleiinianhydridinDiels–Alder-reaktiolla


























Klorendiinianhydridi
Chlorendic anhydride.png
Chlorendic anhydride 3D.png
Tunnisteet
CAS-numero
115-27-5
IUPAC-nimi
1,2,3,4,7,7-heksaklooribisyklo[2.2.1]hept-2-eeni-5,6-dikarboksyylianhydridi
SMILES
C12C(C(=O)OC1=O)C3(C(=C(C2(C3(Cl)Cl)Cl)Cl)Cl)Cl[1]
Ominaisuudet
Kemiallinen kaava
C9H2Cl6O3
Moolimassa
370,806 g/mol
Tiheys
1,73 g/cm3[2] g/cm³
Sulamispiste
231-235 °C[3]
Liukoisuus
Reagoi veden kanssa

Infobox OKVirheellinen NIMI-arvo

Klorendiinianhydridi (C9H2Cl6O3) on kloorattuihin rengasrakenteisiin anhydrideihin kuuluva orgaaninen yhdiste. Yhdistettä voidaan käyttää polymeeriteollisuudessa palonsuoja-aineena.



Ominaisuudet |


Huoneenlämpötilassa klorendiinianhydridi on valkoista kiteistä ainetta. Yhdiste hydrolysoituu erityisesti emäksisten vesiliuosten vaikutuksesta klorendiinihapoksi. Klorendiinianhydridi liukenee muun muassa etanoliin. Klorendiinihappo ärsyttää silmiä, ihoa ja hengitysteitä ja sille altistuminen voi aiheuttaa allergisen reaktion. Yhdiste kuuluu niin sanottuihin reaktiivisiin palonsuoja-aineisiin.[2][3][4][5]



Valmistus ja käyttö |


Klorendiinianhydridiä valmistetaan heksakloorisyklopentadieenin ja maleiinianhydridin välisellä Diels–Alder-reaktiolla. Tuote voidaan puhdistaa hydrolysoimalla se klorendiinihapoksi ja tämän jälkeen eristää klorendiinihappo. Kuumennettaessa klorendiinihappoa se kondensoituu muodostaen jälleen klorendiinianhydridia.[3][4][5]


Klorendiinihappoa käytetään polymeerien palonestoaineena. Erityisesti sitä käytetään tyydyttymättömien polyestereiden valmistuksessa yhdessä maleiinianhydridin ja polyolien kanssa. Lisäksi sitä käytetään myös alkydi- ja epoksihartsien palonsuoja-aineena. Klorendiinihappo parantaa myös polymeerien UV-säteily- ja korroosiokestävyyttä.[3][4][5]



Lähteet |



  1. ↑ Chlorendic anhydride – Substance summary PubChem. NCBI. Viitattu 26.9.2016.


  2. ↑ ab Klorendiinianhydridin kansainvälinen kemikaalikortti Viitattu 26.9.2016


  3. ↑ abcd Susan Budavari (päätoim.): Merck Index, s. 347. 12th Edition. Merck & Co., 1996. ISBN 0911910-12-3. (englanniksi)


  4. ↑ abc Arthur G. Mack: Flame Retardants, Halogenated, Kirk-Othmer Encyclopedia of Chemical Technology, John Wiley & Sons, New York, 2004. Viitattu 26.9.2016


  5. ↑ abc NPCS Board of Consultants & Engineers: Handbook on Textile Auxiliaries, Dyes and Dye Intermediates Technology, s. 43-44. Asia Pacifin Business Press Inc., 2009. ISBN 9788178331225. Kirja Googlen teoshaussa (viitattu 26.9.2016). (englanniksi)








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