Lithium metasilicate

  • Silicic acid, dilithium salt
  • Lithium silicon oxide
  • Lithium silicate
Formula
Li2SiO3
Structure
Description
Odorless, white powder.

Registry Numbers and Inventories.
CAS
10102-24-6
EC (EINECS/ELINCS)
233-270-5
Merck
12,5568
Swiss Giftliste 1
G-7749
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Li2O3Si
Formula mass
89.97
Melting point, °C
1201
Density
2.5 g/cm3 (20 C)
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.
Protection
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Small spills/leaks
Pick up mechanically.
Stability
Decomposition will not occur if used and stored according to specifications.

Fire.
Fire fighting
Use fire fighting measures that suit the surrounding fire. Wear self-contained respirator. Wear fully protective impervious suit
Fire potential
Product is not flammable.
Combustion products
Metal oxide fumes.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
2
Exposure effects
Inorganic silicon compounds may be acute inhalation irritants. Prolonged inhalation may cause pulmonary fibrosis known as silicosis. Large amounts of lithium compounds may cause vomiting, diarrhea, ataxia, intestinal irritation, kidney injury, central nervous system depression and a drop in blood pressure. Central nervous system effects may include slurred speech, blurred vision, dizziness, sensory loss, convulsions and stupor. Chronic intake may cause neuromuscular effects such as tremor, ataxia, weakness, clonus and hyperactive reflexes. Lithium can cause kidney damage, gastrointestinal disturbances, fatigue, dehydration, weight loss, dermatological effects and thyroid damage. Lithium ion has shown teratogenic effects in rats and mice.

First aid
 
   Ingestion
Seek medical treatment.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.