Lithium peroxide

  • Dilithium peroxide
Formula
Li2O2
Structure
Description
A white powder or sandy yellow granular solid.
Uses
To catalyze polymerization of styrene to polystyrene.

Registry Numbers and Inventories.
CAS
12031-80-0
EC (EINECS/ELINCS)
234-758-0
UN (DOT)
1472
Beilstein/Gmelin
13757 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Li2O2
Formula mass
45.88
Density
1.2063 g/cm3 (18 C)
Solubility in water
80 g/L
Thermal expansion
0.000297/K

Hazards and Protection.
Storage
Store in a cool, dry location. Keep container sealed when not in use.
Handling
Store and handle in accordance with all current regulations and standards. Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Keep separated from incompatible substances.
Protection
Wear appropriate chemical protective gloves, boots and goggles. If contact with the material anticipated, wear appropriate chemical protective clothing. Wash away any material which may have contacted the body with copious amounts of water or soap and water. Avoid breathing dusts, and fumes from burning material. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Do not use water. Keep material dry.
Stability
Stable when ot exposed to air, water or heat.
Incompatibilities
May react explosively with hydrocarbons (fuels).
Decomposition
Hazardous decomposition products include lithium oxides

Fire.
Fire fighting
Use suitable dry powder. Cool all affected containers with flooding quantities of water. Do not use water on material itself. Use water in flooding quantities as fog. Keep run-off water out of sewers and water sources.
Fire potential
May explode from friction, heat or contamination. These substances will accelerate burning when involved in a fire.
Hazards
May ignite combustibles (wood, paper, oil, clothing, etc.). Some will react explosively with hydrocarbons (fuels). Containers may explode when heated. Runoff may create fire or explosion hazard.
Combustion products
Fire may produce irritating and/or toxic gases.
 
Special
O

Health.
Exposure effects
   Ingestion
See Inhalation.
   Inhalation
May cause severe injury, burns, or death.
   Skin
Dermal exposure to dilute (3%) solutions generally results in a bleaching of the affected area in association with a tingling sensation and lasts 2 to 3 hours, if washed promptly after contact.
   Eyes
See Inhalation.

First aid
 
   Ingestion
The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. Ocular exposure to household strength (3%) solutions usually requires little more than thorough irrigation, since serious complications are rare. However, ocular exposure to industrial strength (greater than 10%) solutions not only requires thorough irrigation, but given the possibility of corneal ulceration or perforation, evaluation in a health care facility is recommended.

Transport.
UN number
1472
Response guide
Hazard class
5.1
Packing Group
II
 
Std. Transport #
4918772