Lithium oxide

  • Lithia
  • Dilithium oxide
  • Dilithium monoxide
Formula
Li2O
Structure
Description
White cubic crystals

Registry Numbers and Inventories.
CAS
12057-24-8
EC (EINECS/ELINCS)
235-019-5
26 27 28 36/37/39 45
RTECS
OJ6360000
RTECS class
Other
UN (DOT)
3262
Merck
13,5560
Beilstein/Gmelin
33385 (G)
Swiss Giftliste 1
G-8218
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Li2O
Formula mass
29.88
Melting point, °C
1450
Density
2.013 g/cm3 (25 C)
Solubility in water
Soluble
Refractive index
1.644
Heat of vaporization
128.2 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place. Handle and store under nitrogen. Incompatible Materials: Absorbs carbon dioxide from air.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing. Faceshield (8-inch minimum).
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Absorb on sand or vermiculite and place in closed containers for disposal. Ventilate area and wash spill site after material pickup is complete.
Incompatibilities
Strong acids.
Decomposition
Nature of decomposition products not known.

Fire.
Fire fighting
Extinguish using Dry chemical powder. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Emits toxic fumes under fire conditions.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Corrosive. Causes burns.
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Assure adequate flushing of the eyes by separating the eyelids with fingers.

Transport.
UN number
3262
Response guide
Hazard class
8
Packing Group
II