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CAS Number: 7783-00-8
Product Catalog
34-0100
Selenium › Selenous acid (99.999%-Se) PURATREM| CAS Number: | 7783-00-8 |
| MDL Number: | MFCD00011331 |
| Molecular Formula: | H2O3Se |
| Molecular Weight: | 128.97 |
| Chemical Formula: | H2SeO3 |
| Color and Form: | white xtl. |
| Note: |
Stability: hygroscopic
Safety: Hazardous
Physical Characteristics: melting point 70°C dec., density 3.004
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Selenous acid (99.999%-Se) PURATREM |
| Product Number: | 34-0100 |
| CAS Registry Number: | 7783-00-8 |
| Formula: | H2SeO3 |
| EINECS Number: | 231-974-7 |
| Chemical Family: | selenium oxy-acid |
| Synonym: | Selenium dioxide |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 7783-00-8 | 100 | .2mg(Se)/m3 | .2mg(Se)/m3 |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Toxic by inhalation and if swallowed. Chronic exposure may result in nervous disorders, liver and kidney disease. Possible risk of irreversible effects. Danger of cumulative effects. |
| Primary Routes of Exposure: | Inhalation, skin, eyes. |
| Eye Contact: | May cause severe irritation of the eyes. |
| Skin Contact: | May cause severe irritation of the skin, and upon repeated contact, dermatitis. May be absorbed through the skin. |
| Inhalation: | Toxic by inhalation. Inhalation of dust can cause garlic breath and shortness of breath, chills, headache, and delayed pulmonary edema. |
| Ingestion: | Toxic if swallowed. Ingestion may lead to nausea, vomiting, diarrhea, weakness, and chronic diseases. |
| Acute Health Effects: | Toxic by inhalation and if swallowed. May be severely irritating to skin, eyes and respiratory tract, and cause nausea, vomiting, bloody diarrhea, weakness, chills, headache, and delayed pulmonary edema. |
| Chronic Health Effects: | Prolonged exposure to selenium compounds may cause dermatitis, diarrhea, liver damage, nervous disorders, lameness and loss of vitality. Possible risk of irreversible effects. Danger of cumulative 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, firefighters should be equipped with NIOSH approved positive pressure self-contained breathing apparatus. |
| Hazardous Combustion and Decomposion Products: | If involved in a fire, this material may emit toxic and corrosive fumes. |
| Unusual Fire or Explosion Hazards: | No unusual fire or explosion hazard. |
| SECTION 6: Accidental Release Measures | |
|---|---|
| Spill and Leak Procedures: | Small spills can be absorbed into vermiculite or other suitable adsorbent. Sweep up the material and dispose of properly. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store the material in a sealed container. Keep away from heat and 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: | The material may be corrosive an d absorbed through the skin. Wear gloves and full protective clothing. |
| Ventilation: | Handle the material in an efficient fume hood. |
| Respirator: | If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory Protection Program to be in compliance with 29 CFR 1910.134. |
| Additional Protection: | May be corrosive and absorbed through the skin. Wear gloves and full protective clothing. |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | white xtl. |
| Molecular Weight: | 128.97 |
| Melting Point: | 70°C dec. |
| Boiling Point: | no data |
| Vapor Pressure: | 2mm (15°C C) |
| Specific Gravity: | 3.004 |
| Odor: | not determined |
| Solubility in Water: | soluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | hygroscopic |
| Hazardous Polymerization: | no hazardous polymerization. |
| Conditions to Avoid: | none |
| Incompatibility: | strong bases and active metals |
| Decomposition Products: | selenium oxide |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Oral (rat); LDLo: 25mg/kg. Intraperitoneal (rat); LDLo: 10mg/kg. Intravenous (mouse); LD50: 11mg/kg. Subcutaneous (rabbit); TDLo: 4800ug/kg/14D-I. Intraperitoneal (rat); TDLo: 0.938mg/kg/14D-I. Cytogenetic analysis; Human lymphocyte: 10umol/L. Intraperitoneal (mouse); Micronucleous test: 10mg/kg/2D. |
| Carcinogenic Effects: | no data |
| Mutagenic Effects: | Possible mutagen |
| Tetratogenic Effects: | no data |
| SECTION 12: Ecological Information | |
|---|---|
| Ecological Information: | Avoid release to the environment. Very toxic to aquatic organisms. May cause long-term adverse effects in the aquatic environment. |
| SECTION 13: Disposal Considerations | |
|---|---|
| Disposal: | Neutralize the acid with lime or sodium bicarbonate. Commercial kits are available for cleaning up acid spills. Dispose of according to local, state and federal regulations. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Selenium compound, N.O.S. |
| Hazard Class (CFR): | 6.1 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | II |
| UN ID Number (CFR): | UN# 3283 |
| Shipping Name (IATA): | Selenium compound, Solid, N.O.S. |
| Hazard Class (IATA): | 6.1 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | II |
| UN ID Number (IATA): | UN# 3283 |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Listed in the TSCA inventory. |
| SARA (Title 313): | Title compound: See category code N725 for reporting. |
| 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: | 9/12/2003 |
| Revision Date: | 12/14/2011 |
