Sulfuric acid, thorium(4+) salt (2:1); Thorium disulphate; [ChemIDplus] UN2910
White crystalline solid; [Alfa Aesar MSDS]
Radioactive; An irritant; Harmful by ingestion and inhalation; May have cumulative adverse effects; [Alfa Aesar MSDS] See "Thorium." See "Ionizing radiation."
The Guide in the Emergency Response Guidebook is for "Radioactive material, excepted package, limited quantity of material."
No other related information on this agent was found.