Kraft lignin Determination of thermal stability by thermogravimetry

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
CSA W207
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
New Standard
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:


This Standard describes the thermal analysis of kraft lignin using thermogravimetric methods.
Thermogravimetry can be used to determine the temperature(s) and rate(s) of decomposition and the temperature of maximum rate of decomposition.
This procedure is applicable to solid (e.g. powdered form) lignins isolated from the kraft pulping process, whether in their protonated or sodium form. It does not apply to raw black liquor.
Thermogravimetric measurement may be performed using different types of atmosphere, e.g. an inert atmosphere or an oxidative atmosphere

Project need:

To provide a common methodology to determine the thermal stability of lignin using the TGA technic and thus support innovation in the Forestry sector in Canada.

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