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CAS Number: 593-79-3
Product Catalog
34-0550
Selenium › Dimethylselenide, 99%| CAS Number: | 593-79-3 |
| MDL Number: | MFCD00014848 |
| Molecular Formula: | C2H6Se |
| Molecular Weight: | 109.03 |
| Chemical Formula: | (CH3)2Se |
| Color and Form: | colorless liq. |
| Note: |
Stability: air sensitive, heat sensitive, store cold
Safety: Hazardous, stench
Physical Characteristics: boiling point 57-58°C, density 1.4077
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Dimethylselenide, 99% |
| Product Number: | 34-0550 |
| CAS Registry Number: | 593-79-3 |
| Formula: | (CH3)2Se |
| EINECS Number: | 209-807-4 |
| Chemical Family: | organoselenides |
| Synonym: | Dimethylselenium, Methyl selenide |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 593-79-3 | 100 | .2mg(Se)/m3 | .2mg(Se)/m3 |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Inhalation of selenium compounds may cause shortness of breath, garlic breath, chills and headache. Chronic exposure may result in nervous disorders, liver and kidney disease. |
| Primary Routes of Exposure: | Inhalation, skin, eyes. |
| Eye Contact: | May cause mild to moderate irritation of the eyes. |
| Skin Contact: | May cause irritation of the skin, and upon repeated contact, dermatitis. |
| Inhalation: | Inhalation can cause garlic breath and shortness of breath, chills, headache, and delayed pulmonary edema. |
| Ingestion: | Ingestion may lead to nausea, vomiting, diarrhea, weakness, and chronic diseases. |
| Acute Health Effects: | May be irritating to skin, eyes and respiratory tract, and cause nausea, vomiting, bloody diarrhea, headache, and delayed pulmonary edema. Selenium compounds are generally considered to be toxic. |
| Chronic Health Effects: | Prolonged exposure to selenium compounds may cause dermatitis, diarrhea, liver damage, nervous disorders, lameness and loss of vitality. |
| 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: | carbon dioxide, dry powder or foam |
| 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: | The material will evaporate rapidly at room temperature giving a terrible stench. Leave the area unless fitted with a self-contained breathing apparatus, or until vapors have dispersed. Spills can be absorbed into vermiculite or other suitable chemical adsorbent. Sweep up the material and dispose of properly. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store the material in a tightly sealed container in a cool place. Handle only in an efficient fume hood. |
| 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. |
| Ventilation: | Material has a terrible stench. Handle in an efficient fume hood. Large spills can create widespread odor problems. |
| 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: | No additional protection required. |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | colorless liquid |
| Molecular Weight: | 109.03 |
| Melting Point: | no data |
| Boiling Point: | 57-58°C |
| Vapor Pressure: | no data |
| Specific Gravity: | 1.4077 |
| Odor: | stench |
| Solubility in Water: | slightly soluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | air and moisture stable |
| Hazardous Polymerization: | no hazardous polymerization. |
| Conditions to Avoid: | none |
| Incompatibility: | oxidizing agents and halogens |
| Decomposition Products: | carbon monoxide, carbon dioxide, selenium oxide and organic fumes. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Oral (rat); LD50: 2100mg/kg. Inhalation (rat); LC50: 103gm/m3. Intraperitoneal (rat); LD50: 2200mg/kg. Subcutaneous (rat); LDLo: 2180mg/kg. Oral (mouse); LD50: 4gm/kg. Inhalation (mouse); LC50: 88500mg/m3. Intraperitoneal (mouse); LD50: 1800mg/kg. |
| Carcinogenic Effects: | no data |
| Mutagenic Effects: | no data |
| 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): | Selenium compound, Liquid, N.O.S. |
| Hazard Class (CFR): | 6.1 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | III |
| UN ID Number (CFR): | UN# 3440 |
| Shipping Name (IATA): | Selenium compound, Liquid, N.O.S. |
| Hazard Class (IATA): | 6.1 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | III |
| UN ID Number (IATA): | UN# 3440 |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Not 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: | 8/25/2010 |
