- Seleninyl chloride
A colorless to light-colored liquid.
Chlorinating agent & resin plasticizer used in the chemical industry.
Registry Numbers and Inventories.
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
Vapor density (air=1)
2.44 g/cm3 (20 C)
Solubility in water
1.651 (20 C)
Heat of fusion
Hazards and Protection.
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Wear appropriate chemical protective gloves, boots, and goggles.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Use water spray to knock-down vapors.
Reacts in the cold with SELENIUM OXYCHLORIDE evolving light and heat; white phosphorus
When heated to decomposition, emits very toxic fumes of hydrogen chloride and selenium.
Cool containers that are exposed to flames with water until well after the fire is out. Stay upwind; keep out of low areas. Wear positive pressure breathing apparatus and special protective clothing.Use dry chemical, carbon dioxide, water spray, or foam for small fires; use water spray, fog, or foam for large fires.
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
When this material is heated to decomposition, or in contact with acids or acid fumes, highly toxic chloride and selenium fumes are evolved. Hydrochloric acid and selenious acid are produced by reaction with water. Decomposed by water. Reacts violently with powdered antimony, red and white phosphorus, disilver oxide, lead oxides, and potassium. Avoid water, moist air.
Toxic gases and vapors may be released in a fire involving selenium oxychloride.
TLV (as Se): ppm; 0.2 mg/m3 (ACGIH 199?-199?).
Rapid breathing, fever, initial elevated blood pressure followed by abnormally low blood pressure and shock, and rapid heart rate may be noted. CNS depression or coma may occur following selenious acid ingestion, inhalation, or dermal exposure. Seizures may occur. Restlessness was noted on presentation in a nonfatal case.
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns, or death.
Do not induce emesis. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Treat dermal irritation or burns with standard topical therapy. Patients developing dermal hypersensitivity reactions may require treatment with systemic or topical corticosteroids or antihistamines.
Immediately flush with running water for at least 20 minutes.
USCG CHRIS Code
Std. Transport #