SODIUM METASILICATE (ANHYDROUS) 0359
April 2004
Silicic acid, sodium salt
CAS No: 6834-92-0
Disodium metasilicate
RTECS No: VV9275000
Disodium trioxosilicate
UN No: 3253
Na2SiO3
EC No: 014-010-00-8
Molecular mass: 122.1
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Not combustible. In case of fire in the surroundings:
FIRE
use appropriate extinguishing
media.
EXPLOSION
EXPOSURE PREVENT DISPERSION OF DUST! IN ALL CASES CONSULT A
AVOID ALL CONTACT! DOCTOR!
Sore throat. Burning sensation. Local exhaust or breathing Fresh air, rest. Half-upright position.
Inhalation
Cough. Shortness of breath. protection. Artificial respiration may be needed.
Refer for medical attention.
Redness. Pain. Skin burns. Protective gloves. Protective Remove contaminated clothes.
Skin
clothing. Rinse skin with plenty of water or
shower. Refer for medical attention.
Redness. Pain. Severe deep Face shield, or eye protection in First rinse with plenty of water for
Eyes
burns. combination with breathing several minutes (remove contact
protection if powder. lenses if easily possible), then take
to a doctor.
Burning sensation. Abdominal Do not eat, drink, or smoke during Rinse mouth. Do NOT induce
Ingestion
pain. Shock or collapse. work. vomiting. Give plenty of water to
drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into plastic containers; if C Symbol Do not transport with food and
appropriate, moisten first to prevent dusting. R: 34-37 feedstuffs.
Cautiously neutralize remainder with dilute acid S: (1/2-)13-24/25-36/37/39-45
(preferably acetic acid). Then wash away with plenty UN Hazard Class: 8
of water. Personal protection: P2 filter respirator for UN Pack Group: III
harmful particles.
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-80GC6-II+III Separated from strong acids, food and feedstuffs, metals, halogens. Store in
an area having corrosion resistant concrete floor.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2004
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0359 SODIUM METASILICATE (ANHYDROUS)
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS TO WHITE, HYGROSCOPIC SOLID IN The substance can be absorbed into the body by inhalation of
VARIOUS FORMS. its aerosol and by ingestion.
Chemical dangers Inhalation risk
The solution in water is a strong base, it reacts violently with acid Evaporation at 20/C is negligible; a harmful concentration of
and is corrosive to aluminium, zinc forming flammable/explosive airborne particles can, however, be reached quickly when
gas (hydrogen - see ICSC0001). Reacts with halogens causing dispersed.
fire hazard.
Effects of short-term exposure
Occupational exposure limits The substance is corrosive to the eyes, the skin and the
TLV not established. respiratory tract. Corrosive on ingestion.
MAK not established.
PHYSICAL PROPERTIES
Melting point: 1089/C Solubility in water: good
Density: 2.6 g/cm3
ENVIRONMENTAL DATA
NOTES
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE
漏IPCS 2004
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