UOP Standard Active Last Updated: Jul 29, 2002 Track Document
ASTM UOP935-94

Mercaptan Types In Kerosine by NMR

Mercaptan Types In Kerosine by NMR UOP935-94 UOP|UOP935-94|en-US Mercaptan Types In Kerosine by NMR Standard new
$ 288.00 In stock
Universal Oil Products

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.

Price:
Contact Sales

For a subscription to UOP products, please contact sales

Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Pages: 16
ICS Code: 75.160.20