Selenium trioxide safety data
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
GHS classification
Pictograms, signal word and hazard classes of the GHS classification
No signal word reported.
Transport information
UN dangerous goods classification for road, sea and air
- UN number
- UN 3283
- Transport hazard class
- 6.1
- Packing group
- II
Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.
Supplier safety data sheets
SDS documents uploaded by suppliers who list this chemical
No supplier has uploaded an SDS for Selenium trioxide yet. Suppliers usually send one with their quote. Request quotes
Safety questions
Quick answers about handling Selenium trioxide safely
Is Selenium trioxide hazardous?
What is the UN number of Selenium trioxide?
Where can I get the SDS for Selenium trioxide?
GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error