UOP 935 PDF

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Mercaptan Types In Kerosine by NMR

Published by Publication Date Number of Pages
UOP 01/01/1994 16

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UOP 935 – Mercaptan Types In Kerosine by NMR

This method is for determining primary, secondary and tertiary mercaptans (thiols) in kerosines up to several thousand mass-ppm, based on the procedure previously suggested by E. Rafii, et al. (1,2). The lower limit of detection by 119Sn {H} decoupled, refocused Insensitive Nucleus Enhancement by Polarization Transfer (INEPT) Nuclear Magnetic Resonance (NMR) spectroscopy without preconcentration is 40 mass-ppm per mercaptan type in the kerosine. Lower concentrations can be determined using a specified distillation procedure. The only known interferences are thiophenols and branched alcohols, such as isopropyl and butyl alcohols (see NOTE). The method relies upon the quantitative preparation of soluble tri-n-butyl tin derivatives of all of the thiols present.

Published

01/01/1994

Number of Pages

16

File Size

1 file , 260 KB

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UOP 935 PDF
$240.00 Original price was: $240.00.$144.00Current price is: $144.00.