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Isosianat: Perbedaan antara revisi

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→‎Pranala luar: I am a representative of Merck (Sigma Aldrich), and as there was a recent website migration, the existing link for the text (Air Sampling Isocyanates "http://www.sigmaaldrich.com/asset") on the page has expired and hence updated with the appropriate one. Thank You!
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* Foam Systems: Guidelines for Safe Handling and Disposal (1993)
* Foam Systems: Guidelines for Safe Handling and Disposal (1993)
* [http://www.hse.gov.uk/research/rrhtm/rr311.htm An occupational hygiene assessment of the use and control of isocyanates in the UK] by Hilary A Cowie et al. HSE Research Report RR311/2005. Prepared by the [[Institute of Occupational Medicine]] for the [[Health and Safety Executive]]
* [http://www.hse.gov.uk/research/rrhtm/rr311.htm An occupational hygiene assessment of the use and control of isocyanates in the UK] by Hilary A Cowie et al. HSE Research Report RR311/2005. Prepared by the [[Institute of Occupational Medicine]] for the [[Health and Safety Executive]]
* [http://www.sigmaaldrich.com/asset Air Sampling Isocyanates]
* [https://www.sigmaaldrich.com/US/en/technical-documents/protocol/environmental-testing-and-industrial-hygiene/air-testing/asset_ez4-nco-isocyanates Air Sampling Isocyanates]
{{Gugus fungsi}}
{{Gugus fungsi}}



Revisi terkini sejak 23 Februari 2022 09.46

Gugus fungsi isosianat

Isosianat adalah gugus fungsi dengan rumus kimia R–N=C=O. Senyawa organik yang mempunyai 2 gugus isosianat disebut diisosianat. Diisosianat diproduksi bersama dengan poliol untuk produksi poliuretan, sebuah polimer.

Reaktivitas

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Reaksi dengan nukleofil

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Isosianat adalah elektrofil dan mereka reaktif terhadap berbagai macam nukleofil termasuk alkohol, amina, dan bahkan air. Reaksi isosianat dengan alkohol menghasilkan ikatan uretan:[1]

ROH + R'NCO → ROC(O)N(H)R' (R dan R' adalah gugus alkil atau aril)

Referensi

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  1. ^ Christian Six, Frank Richter "Isocyanates, Organic" in Ulmann's Encyclopedia of Industrial Chemistry, 2005, Wiley-VCH, Weinheim. doi:10.1002/14356007.a14_611

Pranala luar

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