« back to the search result list  
SODIUM CARBONATE (ANHYDROUS)ICSC: 1135 (April 2024)
Carbonic acid disodium salt
Soda ash
Disodium carbonate
CAS #: 497-19-8
EC Number: 207-838-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible. Many reactions may cause fire or explosion. See Chemical dangers    NO contact with incompatible substances. See Chemical Dangers.    In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Use local exhaust.  Fresh air, rest. 
Skin Redness.  Protective gloves.  Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Sore throat. Nausea. Abdominal pain.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance, safety goggles and protective gloves. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. 

According to UN GHS Criteria

excl mark;warn
Causes serious eye irritation 

Transportation
UN Classification
 

STORAGE
Dry. Well closed. Separated from incompatible materials. See Chemical Dangers. 
PACKAGING
 
SODIUM CARBONATE (ANHYDROUS) ICSC: 1135
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE HYGROSCOPIC POWDER. 

Physical dangers
 

Chemical dangers
The solution in water is a medium strong base. Reacts violently with acids. This produces heat and carbon dioxide (see ICSC 0021). Reacts with magnesium, phosphorus pentoxide, calcium hypochlorite and calcium. This generates explosion hazard. Reacts with fluorine. This generates fire hazard. Decomposes on heating above 400°C . This produces sodium oxides and carbon dioxide (see ICSC 0021). 

Formula: Na2CO3
Molecular mass: 106.0
Decomposes at >400°C
Melting point: 851°C
Density: 2.5 g/cm³
Solubility in water, g/100ml at 20°C: 30 (freely soluble) 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of dust. 

Effects of short-term exposure
The substance is severely irritating to the eyes. The substance is mildly irritating to the skin and respiratory tract. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly , especially if powdered. 

Effects of long-term or repeated exposure
The substance may have effects on the respiratory tract. This may result in perforation of the nasal septum. Repeated or prolonged contact with skin may cause dermatitis. 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
Environmental effects of the substance have been adequately investigated, but no significant effects have been found. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.