Sodium metasilicate
CAS No.: 6834-92-0
Synonyms:
Formula: Na2O3Si
Exact Mass: 121.94100
Molecular Weight: 122.06300
PSA: 63.19000
LogP: -0.73720
Sodium metasilicate 6834-92-0 MSDS

Section 1: Product Identification
   Chemical Name:       Sodium metasilicate pentahydrate, 99%    
   CAS Registry Number:       6834-92-0    
   Formula:       Na2SiO3.5H2O    
   EINECS Number:       229-912-9    
   Chemical Family:       metal silicate    
   Synonym:       Disodium metasilicate, Water glass.    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       6834-92-0       100%       no data       no data    

Section 3: Hazards Identification
   Corrosive to skin, eyes, and mucous membranes. May cause coughing, wheezing, shortness of breath,
   Emergency Overview:
   headache, nausea and vomiting. Ingestion may cause damage to the mouth, throat and esophagus.
   Primary Routes of Exposure:       Ingestion, inhalation, skin, eyes.    
   Eye Contact:       Corrosive to eyes.    
   Skin Contact:       Corrosive to skin.    
   Inhalation:       Inhalation may cause inflammation of the respiratory tract, edema and chemical pneumonitis.    
   Ingestion:       Ingestion may cause damage to the mouth, throat and esophagus.    
   Corrosive to skin, eyes and mucous membranes. Inhalation causes coughing, wheezing, shortness of breath,
   Acute Health Affects:
   headache, nausea, and vomiting. Ingestion may cause damage to the mouth throat and esophagus.
   Chronic Health Affects:       Prolonged inhalation of silica dust can produce silicosis with impairment of the cardiopulmonary system.    
   NTP:       No    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
   Inhalation:
   in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
   Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
   Ingestion:
   vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
   Flash Point:       not applicable    
   Autoignition Temperature:       none    
   Explosion Limits:       none    
   Extinguishing Medium:       none required    
   If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained
   Special Fire Fighting Procedures:
   breathing apparatus and full protective clothing.
   Hazardous Combustion and       None    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up.    

SECTION 7: Handling and Storage
   Handling and Storage:       Store material in a tightly sealed bottle away from moisture.    

SECTION 8: Exposure Controls and Personal Protection
   Eye Protection:       Always wear approved safety glasses when handling a chemical substance in the laboratory.    
   Skin Protection:       Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove.    
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a
   Respirator:
   Respirator Protection Program to be in compliance with 29 CFR 1910.134.
   Ventilation:       If possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       white pwdr.    
   Molecular Weight:       122.06 (212.14)    
   Melting Point:       40-48°    
   Boiling Point:       no data    
   Vapor Pressure:       no data    
   Specific Gravity:       no data    
   Odor:       none    
   Solubility in Water:       very soluble    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       Strong acids    
   Incompatibility:       mineral acids    
   Decomposition Products:       none    

SECTION 11: Toxicological Information
   Administration onto the skin (human); Standard Draize test: 250 mg/24H. Administration onto the skin (rabbit);
   Standard Draize test: 250 mg/24H. Administration onto the skin (guinea pig); Standard Draize test: 250
   RTECS Data:       mg/24H. Oral (rat); LD50: 1153 mg/kg. Oral (mouse); LD50: 770 mg/kg. Oral (dog); LDLo: 250 mg/kg. Oral    
   (pig); LDLo: 250 mg/kg. Intraperitoneal (guinea pig); LDLo: 200 mg/kg. Oral (rat); TDLo: 15 gm/kg.
   Subcutaneous (rat); TDLo: 9766 ug/kg. Intratesticular (rat); TDLo: 9766 ug/kg.
   Carcinogenic Effects:       none    
   Mutagenic Effects:       none    
   Tetratogenic Effects:       reproductive effector    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to local, state and federal regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Disodium trioxosilicate    
   Hazard Class (CFR):       8    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       III    
   UN ID Number (CFR):       UN# 3253    
   Shipping Name (IATA):       Disodium trioxosilicate    
   Hazard Class (IATA):       8    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       III    
   UN ID Number (IATA):       UN# 3253    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Title compound not listed    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

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