Section 1: Product Identification
Chemical Name: Potassium selenite
CAS Registry Number: 10431-47-7
Formula: K2SeO3
EINECS Number: 233-909-8
Chemical Family: inorganic compound
Synonym: Dipotassium selenite
Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 10431-47-7 100% 0.2mg/m3 (as Se) 0.2mg/m3 (as Se)
Section 3: Hazards Identification
Poison. Ingestion may be fatal at low doses. Inhalation may cause shortness of breath, garlic odor, chills and
Emergency Overview:
headache. Chronic exposure may result in nervous disorders, liver and kidney disease.
Primary Routes of Exposure: Ingestion, inhalation, skin, eyes.
Eye Contact: May cause severe irritation, redness, pain.
Skin Contact: May causes severe irritation. Symptoms include redness, itching and pain.
Inhalation can cause garlic odor and shortness of breath, chills, headache, and delayed pulmonary edema.
Inhalation:
Toxic by inhalation.
Ingestion: Toxic. May be fatal if swallowed. May cause gastrointestinal irritation, nausea and vomiting.
May be irritating to skin, eyes and respiratory tract, and cause nausea, vomiting, bloody diarrhea, weakness,
Acute Health Affects:
chills, headache, and delayed pulmonary edema.
Prolonged exposure to selenium compounds may cause dermatitis, diarrhea, liver damage, nervous disorders,
Chronic Health Affects:
lameness and loss of vitality.
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 immediately with water. Remove contaminated clothing if necessary. Seek medical
Skin Exposure:
assistance if 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: no data
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide or dry powder
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self- contained breathing apparatus and full protective clothing.
Hazardous Combustion and If involved in a fire, toxic oxidation or decomposition products may form.
Decomposion Products:
Unusual Fire or Explosion Hazards: Non-flammable. No unusual fire or explosion hazard.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Sweep up the solid and dispose of properly.
SECTION 7: Handling and Storage
Handling and Storage: Store in a cool, dry place in a tightly sealed container.
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: Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: Handle the material in an efficient fume hood.
Additional Protection: No additional protection required.
SECTION 9: Physical and Chemical Properties
Color and Form: white powder
Molecular Weight: 205.16
Melting Point: 875° dec.
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: no data
Odor: none
Solubility in Water: soluble
SECTION 10: Stability and Reactivity
Stability: hygroscopic
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: none
Incompatibility: active metals and oxidizing agents
Decomposition Products: potassium oxide and selenium oxide
SECTION 11: Toxicological Information
RTECS Data: Status: EPA Genetox Program 1988: negative B subtilis rec. assay.
Carcinogenic Effects: no data
Mutagenic Effects: Negative 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): Selenates or Selenites
Hazard Class (CFR): 6.1
Additional Hazard Class (CFR): NA
Packaging Group (CFR): I
UN ID Number (CFR): UN# 2630
Shipping Name (IATA): Selenates or Selenites
Hazard Class (IATA): 6.1
Additional Hazard Class (IATA): NA
Packaging Group (IATA): I
UN ID Number (IATA): UN# 2630
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory
SARA (Title 313): See Category Code N725 for reporting.
Second Ingredient: none
SECTION 16 - ADDITIONAL INFORMATION
N/A
