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CAS Number: 7757-83-7
Product Catalog
93-1184
Sodium › Sodium sulfite, anhydrous, 98+% (ACS)| CAS Number: | 7757-83-7 |
| MDL Number: | MFCD00003503 |
| Molecular Formula: | Na2O3S |
| Molecular Weight: | 126.04 |
| Chemical Formula: | Na2SO3 |
| Color and Form: | white pwdr. |
| Note: |
Physical Characteristics: melting point dec., density 2.633
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Sodium sulfite, anhydrous, 98+% (ACS) |
| Product Number: | 93-1184 |
| CAS Registry Number: | 7757-83-7 |
| Formula: | Na2SO3 |
| EINECS Number: | 231-821-4 |
| Chemical Family: | inorganic compound |
| Synonym: | Disodium sulfite, Sulfurous acid, disodium salt, Sulfurous acid |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title compound | 7757-83-7 | 100 | no data | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Irritating to skin, eyes and respiratory tract. Sensitization possible through inhalation, ingestion and skin contact. Possible risk of irreversible effects. |
| Primary Routes of Exposure: | Ingestion, Inhalation of dust. |
| Eye Contact: | Irritating to eyes. May cause redness and pain. |
| Skin Contact: | Irritating to skin. May cause itching and redness. |
| Inhalation: | Inhalation of dust can lead to irritation of the respiratory tract, causing coughing and sore throat. |
| Ingestion: | May be harmful if swallowed. Very large doses may cause colic, diarrhea, CNS depression and, in some cases, death. |
| Acute Health Effects: | Irritating to the eyes, skin, and respiratory tract. Some individuals may be sensitive to small amounts of sulfites in foods. Symptoms may include bronchial constriction, shock, angio edema, flushing. |
| Chronic Health Effects: | Possible risk of irreversible effects. |
| NTP: | No |
| IARC: | No |
| OSHA: | No |
| SECTION 4: First Aid Measures | |
|---|---|
| Eye Exposure: | Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention. |
| Skin Exposure: | Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists. |
| Inhalation: | Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing or pain. In such cases seek immediate medical assistance. |
| Ingestion: | Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel. |
| SECTION 5: Fire Fighting Measures | |
|---|---|
| Flash Point: | no data |
| Autoignition Temperature: | no data |
| Explosion Limits: | no data |
| Extinguishing Medium: | None required |
| Special Fire Fighting Procedures: | If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | If involved in a fire, choking fumes of sulfur dioxide may form. |
| 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 vermiculite, sodium carbonate or other suitable adsorbent and swept up. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store the material in a tightly sealed container in a cool, dry place. |
| 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 appropriate chemical resistant gloves and clothing. |
| Ventilation: | Material may form a fine dust. If possible, handle the material in an efficient fume hood. |
| Respirator: | If in form of fine dust and ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134. |
| Additional Protection: | No additional protection required. |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | white powder |
| Molecular Weight: | 126.04 |
| Melting Point: | dec. |
| Boiling Point: | no data |
| Vapor Pressure: | no data |
| Specific Gravity: | 2.633 |
| Odor: | none |
| Solubility in Water: | 12.54g/100cc (0C) |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | air and moisture stable |
| Hazardous Polymerization: | No hazardous polymerization |
| Conditions to Avoid: | none |
| Incompatibility: | Strong acids. |
| Decomposition Products: | sulfur dioxide. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Oral (mouse); LD50: 820 mg/kg. Intraperitoneal (mouse); LD50: 950 mg/kg. Intravenous (mouse); LD50: 175 mg/kg. Subcutaneous (dog); LDLo: 1300 mg/kg. Subcutaneous (cat); LDLo: 1300 mg/kg. Intravenous (cat); LDLo: 400 mg/kg. Oral (rabbit); LDLo: 2825 mg/kg. Subcutaneous (rabbit); LDLo: 600 mg/kg. Subcutaneous (guinea pig); LDLo: 600 mg/kg. Intravenous (guinea pig); LDLo: 200 mg/kg. Human Lymphocyte; Mutation test systems-not otherwise specified: 100 umol/L. |
| Carcinogenic Effects: | no data |
| Mutagenic Effects: | Possible mutagen |
| Tetratogenic Effects: | no data |
| 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): | Non-hazardous |
| Hazard Class (CFR): | NA |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | NA |
| UN ID Number (CFR): | NA |
| Shipping Name (IATA): | Non-hazardous |
| Hazard Class (IATA): | NA |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | NA |
| UN ID Number (IATA): | NA |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Listed in the TSCA inventory. |
| SARA (Title 313): | Title compound not listed |
| Second Ingredient: | none |
| Third Ingredient: | none |
| SECTION 16: Other Information | |
|---|---|
| Disclaimer: | The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. |
| Preparation Date: | 5/23/2004 |
| Revision Date: | 12/14/2011 |
