---
title: Commercial Bulletin - Sulfrex™ Sweetn’G™ / Sweetn’K™
description: Mercaptans (RSH) are naturally present in crude oils but are also generated from other sulfur compounds during crude fractionation and cracking processes.
image: https://resources.axens.net/hubfs/Landing%20Pages/Resources/Commercial%20Bulletin/Thumbnails%20CB/thumb_Sulfrex-SweetnG-SweetnK.jpg
---

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 Commercial Bulletin

# Sulfrex™ Sweetn’G™ / Sweetn’K™

## Processes to Extract and Convert Mercaptans in Hydrocarbons

![thumb_Sulfrex-SweetnG-SweetnK](https://resources.axens.net/hubfs/Landing%20Pages/Resources/Commercial%20Bulletin/Thumbnails%20CB/thumb_Sulfrex-SweetnG-SweetnK.jpg)

Mercaptans (RSH) are naturally present in crude oils but are also generated from other sulfur compounds during crude fractionation and cracking processes. Mercaptans are undesirable because of their obnoxious odor and their tendency to hydrolyze, forming toxic and corrosive hydrogen sulfide. The classic tests for mercaptan presence are the “doctor” test and copper corrosion strip test.

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