Thallous selenite

  • Thallium selenite
  • Selenious acid, dithallium(1+) salt
Formula
TlSO3.2Tl
Structure
Description
Pale yellow crystals.

Registry Numbers and Inventories.
CAS
15123-92-9
UN (DOT)
1707
Beilstein/Gmelin
320015 (G)

Properties.
Formula
O3SeTl2
Formula mass
535.72
Solubility in water
Moderately soluble

Hazards and Protection.
Storage
Store in a cool dry location, away from incompatible materials.
Handling
Avoid contact with eyes, skin, and clothing. Do not breath vapors. Wash thoroughly after handling. Contaminated clothing should be laundered before reuse. This material should only be handled in a hood.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Cover with plastic sheet to prevent spreading. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Stable at normal temperratures and pressures.

Fire.
Fire fighting
Use method most appropriate to fight surrounding fire.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Inhalation
Highly toxic, may be fatal if inhaled, swallowed or absorbed through skin. Effects of contact or inhalation may be delayed.
   Skin
Avoid any skin contact. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
1707
Response guide
Hazard class
6.1
Packing Group
II
 
USCG CHRIS Code
TLS