Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Nverify (what is YN ?)
Infobox references
Trichlorosilane is an inorganic compound with the formula HSiCl3. It is a colourless, volatile liquid. Purified trichlorosilane is the principal precursor to ultrapure silicon in the semiconductor industry. In water, it rapidly decomposes to produce a silicone polymer while giving off hydrochloric acid. Because of its reactivity and wide availability, it is frequently used in the synthesis of silicon-containing organic compounds.[1]
Contents
1Production
2Applications
2.1Ingredient in hydrosilylation
2.2Organic synthesis
3References
4External links
Production
Trichlorosilane is produced by treating powdered metallurgical grade silicon with blowing hydrogen chloride at 300 °C. Hydrogen is also produced, as described in the chemical equation:
Si + 3 HCl → HCl3Si + H2
Yields of 80-90% can be achieved. The major byproducts are silicon tetrachloride (chemical formula SiCl4), hexachlorodisilane (Si2Cl6), and dichlorosilane (H2SiCl2), from which trichlorosilane can be separated by distillation.
Tank car of trichlorosilane (the blue diamond means "Dangerous when wet").
It is also produced from silicon tetrachloride:[2]
Si + 3 SiCl4 + 2 H2 → 4 HSiCl3
Applications
Trichlorosilane is the basic ingredient used in the production of purified polysilicon.
HSiCl3 → Si + HCl + Cl2
Ingredient in hydrosilylation
Via hydrosilylation, trichlorosilane is a precursor to other useful organosilicon compounds:
RCH=CH2 + HSiCl3 → RCH2CH2SiCl3
Some useful products of this or similar reactions include octadecyltrichlorosilane (OTS), perfluoroctyltrichlorosilane (PFOTCS), and perfluorodecyltrichlorosilane (FDTS). These reagents used in surface science and nanotechnology to form Self-assembled monolayers. Such layers containing fluorine decrease surface energy and reduce sticking. This effect is usually exploited as coating for MEMS and microfabricated stamps for a nanoimprint lithography (NIL) and in injection molding tools.[3]
Organic synthesis
Trichlorosilane is a reagent in the conversion of benzoic acids to toluene derivatives. In the first step of a two-pot reaction, the carboxylic acid is first converted to the trichlosilylbenzyl compound. In the second step, the benzylic silyl derivative is converted to the toluene derivative with base.[4]
References
^Lianhong Xu, Ravi Kurukulasuriya, "Trichlorosilane" Encyclopedia of Reagents for Organic Synthesis, 2006. doi:10.1002/047084289X.rt213.pub2
^Cech J, Taboryski R (2012). "Stability of FDTS monolayer coating on aluminum injection molding tools". Applied Surface Science. 259: 538–541. doi:10.1016/j.apsusc.2012.07.078.
^George S. Li, David F. Ehler, R. A. Benkeser "Methyl Groups By Reduction Of Aromatic Carboxylic Acids With Trichlorosilane - Tri-n-propylamine: 2-methylbiphenyl" Org. Synth. 1977, volume 56, pp. 83. doi:10.15227/orgsyn.056.0083
Semiconductors: Silicon: Substrate Manufacture: Polycrystalline silicon Production
2009 crimes in AustraliaPeople convicted of incestRape in AustraliaChild abuse incidents and cases Victoria Police Moe, Victoria, Australiarapedphysically abusedviolencediedallegationsNews LimitedinvestigateMelbournedevelopmental problemsintellectually disabledspeech impedimentbirth certificateschargedsexual abuseDNA testspleadedguiltyincestindecent assaultcommon assaultsentencingimprisonmentparolesex offender registryappeal The Moe incest case emerged in February 2007 when a woman, identified as M for legal reasons, reported to Victoria Police in the town of Moe, Victoria, Australia that her 63-year-old father, RSJ, had raped, [1] [2] physically abused, and kept her a virtual prisoner in her own home between 1977 and 2005. Police had known about the alleged abuse since 2005, when M first came forward, but could not act because she did not want to cooperate after her father threatened violence against her mother and siblings. The J family had been known to authorities for more than ...
FrenchArabicFrenchAir TamajeqChadian ArabicDazaKaadoTamahaqStandardArabicEnglishDazaDinkaDoniFurKadugliKangaKeigaKrongoTemeinTeseTulishiTumtumZaghawaAcheronAmiraDengebuEbangJomangKatlaKoKwalibLaroLogolLumunMoroNdingNgileShirumbaTagoiTegaliTegemTimaTiroTochoToronaUtoroWarnangBejaDomariSudanese ArabicSudanese Sign LanguagesBertiZaghawa Tebu languagesSaharan languagesLanguages of ChadLanguages of NigerToubou people Nilo-Saharan languageDaza peopleChadGouranDjurab DesertBorkouFaya-LargeauTibesti MountainsChadNigerN'guigmiLibyaSudanOmdurmanJeddahSaudi ArabiaTedaga languageTedaToubou peopleSabhaSaharanKanuri languageKanembu languageTebu languagesZaghawa languageBerti languageFrenchArabicliterary languagebilingualHausaZarmaTuaregromanisation Not to be confused with Dazawa language. "Goran language" redirects here. It is not to be confused with Gorani language (Zaza-Gorani) or Gora dialect. Daza Dazaga Native to Chad, Niger, Sudan, Libya Region Chad, BET Region, bahr el Gazel R...
BangladeshBhutanChinaIndiaIndonesiaIsraelJapanMalaysiaPakistanRussiaBIMSTECSouth Asia Co-operative Environment ProgrammeSouth Asian Economic UnionSAARCEuropean UnionForeign aid to NepalDiplomatic missions ofin NepalBhupalisNepal citizenship lawNepalese diplomats Government ministries of NepalForeign affairs ministries external affairsFederal Democratic Republic of NepalIndiaFranceBirgunjTripureshwor, Kathmandu Federal Democratic Republic of Nepal Ministry of Foreign Sh foreign ministry Building of Ministry of Foreign Affairs (Nepal) Coat of arms of Nepal Agency overview Jurisdiction Nepal and its diplomatic missions worldwide Agency executives Pradeep Kumar Gyawali, Minister for Foreign Affairs Shanker Das Bairagi, Foreign Secretary Website mofa.gov.np The Nepalese Ministry of Foreign Affairs ( Nepali: परराष्ट्र मन्त्रालय ) abbreviated as MoFA is responsible for conducting exte...
N verify (what is 
Y
N ?)
