Evaluation of solvents for carbon-13 n.m.r. analysis of solvent-refined coals. sym-Triazine a new carbon-13 n.m.r. solvent

Autor:	Kaizaburo Saito, Kenneth J. Klabunde, R.J. Baltisberger, Neil F. Woolsey, Virgil I. Stenberg
Rok vydání:	1979
Předmět:	chemistry.chemical_classification Alkene General Chemical Engineering Organic Chemistry Carbon-13 Energy Engineering and Power Technology Alcohol Solvent chemistry.chemical_compound Fuel Technology chemistry Pyridine Organic chemistry Aliphatic amine Phenols Triazine
Zdroj:	Fuel. 58:315-317
ISSN:	0016-2361
DOI:	10.1016/0016-2361(79)90143-1
Popis:	Solvent-refined lignite (SRL) and bituminous coals (SRC) are only partially soluble in good standard carbon-13 n.m.r. solvents. A survey of other possible solvents for SRLs and SRCs showed that sym-triazine at 86 °C solvated SRL as well as pyridine, but did not absorb in the regions of interest (5–60 and 90–160 ppm relative to TMS). Model hydrocarbons, phenols and an alcohol in sym-triazine gave aromaticities (fa) accurate within the standard deviation (0.01 to 0.001) when proper FT carbon-13 techniques were used. An alkene and an aliphatic amine reacted with sym-triazine and gave inaccurate values of fa.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5de3b8c5b3fd67f7f3a23fa510866d87 https://doi.org/10.1016/0016-2361(79)90143-1 Zobrazit plný text záznamu