Di-tert-butyl polysulfide (GDS 56)

GDS-56 is Di-tert-butyl polysulfide (sulfurized isobutylene) and is a new generation of Catalyst Sulfiding Agent (equivalent to SulfrZol® 54 of Lubrizol), primarily used as a sulfiding agent for hydrotreating catalysts. It overcomes all the disadvantages of dimethyl disulfide (DMDS) and represents a superior alternative sulfiding agent. In addition, this product can be used as a coking inhibitor for ethylene cracking furnaces and as a sulfur solvent in oil and gas field operations.


Features

• High sulfur content

• Low odor

• Flash point above 100 °C, with no risk of flash fire or explosion

• Safe and clean during handling, storage, and transportation

• Hydrogen utilization up, SOx emissions down.


Packaging and Storage

Packaging:Available in 200-L steel drums, 1000-L IBC containers, or 20,000-L tank containers.

Storage:Store in a dry, well-ventilated warehouse at ambient temperature, protected from light (especially when using transparent or semi-transparent containers).


Technical Specifications and Test Methods

Item

Quality Standard

Test Method

Appearance

Yellow to Amber

Visual inspection

Moisture % (v/v)

  0.03

GB/T260-2016

Mechanical Impurities %

  0.05

GB/T511-2010

Flash Point (Closed Cup) ℃ 

  100  

GB/T25482-2010  

Kinematic Viscosity (40 °C), mm²/s

  8.5

GB/T265

Density(15.6 ℃)kg/m3 

1075-1121

GB/T13377-2010

Sulfur Content %(m/m)

  52-56

GB/T17040-20191

Thermal Decomposition Temperature ℃

  210

SH/T0561-1993

Pour Point ℃

  -42

GB/T3535-2006

1.The sulfur content in GDS56 can be determined using methods other than        

GB/T17040-2019 as well.