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SODIUM SESQUICARBONATE DIHYDRATE ICSC: 1511
Date of Peer Review: April 2004

Carbonic acid, sodium salt, hydrate (2:3:2)
Trona
Natural sodium sesquicarbonate
CAS # 6106-20-3 C2H5Na3O8 / Na2CO3.NaHCO3.2H2O
RTECS # FG2099000 Molecular mass: 226.0
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE


Inhalation Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest.
Skin Redness. Dry skin.
Protective gloves.
Rinse skin with plenty of water or shower.
Eyes Redness.
Safety goggles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE

Separated from acids.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
SODIUM SESQUICARBONATE DIHYDRATE ICSC: 1511
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
SOLID IN VARIOUS FORMS

CHEMICAL DANGERS:
The solution in water is a weak base. Reacts with acids.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
INHALATION RISK:
A nuisance-causing concentration of airborne particles can be reached quickly especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes, the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis.
PHYSICAL PROPERTIES
Melting point (decomposes): >70C
Density: 2.1 g/cm
Solubility in water, g/100 ml at 20C: 16
ENVIRONMENTAL DATA

NOTES

ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999