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MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Lanthanum Carbide Chemical Nature: Metal Carbide
Formula: LaC2 Molecular Weight: 162.93
CAS #: 12071-15-7
II HAZARDOUS INGREDIENTS
Hazardous Components % OSHA/PEL ACGIH/TLV Sec. 302 Sec. 304 Sec. 313
Lanthanum Carbide 0-100 N/E N/E No No No
HMIS Ratings (0-4): Health: 2 Flammability: 4 Reactivity: 2
HMIS Protective Equipment: F: glasses, gloves, apron, dust mask
III PHYSICAL DATA
Boiling Point 760 mm Hg: N/E or N/A Melting Point: N/E or N/A
Solubility in H2O: Decomposes Specific Gravity: 5.02 gm/cc
Vapor Pressure: N/A Vapor Density: N/A
Appearance and Odor: Yellow crystalline pieces, no odor. % Volatiles by Weight: N/A
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point: N/E or N/A Method Used: Flammable solid
Explosive Limits: Upper: N/E Lower: N/E
Extinguishing Media: Use Class D or other suitable metal extinguishing agent. DO NOT USE WATER.
Special Fire Fighting Procedures: Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.
Unusual Fire & Explosion Hazard: DANGEROUS WHEN WET. On contact with water lanthanum carbide may emit flammable and toxic fumes.
V HEALTH HAZARD INFORMATION
Routes of Entry: Inhalation, Skin, Eyes, and Ingestion.
To the best of our knowledge the chemical, physical and toxicological properties of lanthanum carbide have not been thoroughly investigated and recorded.
Lanthanum is considered a rare earth metal. These metals are moderately to highly toxic. The symptoms of toxicity of the rare earth elements include writhing, ataxia, labored respiration, walking on the toes with arched back and sedation. The rare earth elements exhibit low toxicity by ingestion exposure. However, the intraperitoneal route is highly toxic while the subcutaneous route is poison to moderately toxic. The production of skin and lung granulomas after exposure to them requires extensive protection to prevent such exposure (Sax, Dangerous Properties of Industrial Materials, eighth edition).
Inhalation: Acute: May cause irritation to the respiratory tract and mucous membrane. Dusts may cause asthma attacks and lung damage such as lung granulomas. large doses may cause writhing, loss of muscle coordination, labored respiration, sedation, hypotension and cardiovascular collapse.
Chronic: Prolonged or repeated inhalation may cause writhing, loss of muscle coordination, labored respiration, sedation, hypotension and cardiovascular collapse.
Ingestion: Acute: May cause gastrointestinal irritation.
Chronic: May affect the coagulation rate of the blood.
Skin: Acute: May cause irritation, rashes and skin granulomas.
Chronic: May cause dermatitis, sensitivity to heat, itching and skin lesions.
Eyes: Acute: May cause irritation.
Chronic: No chronic health effects recorded.
Carcinogenicity: NTP? No IARC Monographs? No OSHA Regulated: No
Target Organs: May affect the respiratory system, blood and skin.
Medical Conditions Generally Aggravated by Exposure: Pre-existing respiratory disorders.
Symptoms of Exposure:
Inhalation: May cause writhing, ataxia, labored respiration, walking on the toes with arched back and sedation.
Ingestion: May cause nausea, vomiting, diarrhea, abdominal burning and cramp-like pain.
Skin: May cause redness, itching and burning.
Eyes: May cause redness, itching, burning and watering.
EMERGENCY AND FIRST AID PROCEDURES:
EYES: Flush with copious amounts of water for at least 15 minutes, lifting both upper and lower eyelids. Seek medical attention if irritation persists.
SKIN: Remove any contaminated clothing, brush material off of skin, flush with running water, wash carefully with soap and water. Seek medical attention if irritation persists.
INHALATION: Remove to fresh air. Keep victim warm and quiet, give oxygen if breathing is difficult. Seek medical attention.
INGESTION: Give 1-2 glasses of milk or water and induce vomiting, seek immediate medical attention. Never induce vomiting or give anything by mouth to an unconscious person.
VI REACTIVITY DATA
Stability: Stable
Incompatibility: Strong acids, strong oxidizers, water and moisture.
Hazardous Decomposition Products: Unknown mix of hydrocarbons which may be flammable.
Hazardous Polymerization: Will not occur.
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material Is Released or Spilled: Wear appropriate respiratory and protective equipment specified in Section VII- Special Protection Information. Isolate spill area, provide ventilation and extinguish sources of ignition. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Take care not to raise dust. Use non-sparking tools.
Waste Disposal Method: Dispose of in accordance with all Local, State and Federal waste disposal regulations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection (Specify Type): Wear protective clothing to prevent contamination of skin and clothes.
Ventilation: Local Exhaust: Maintain exposure below TLV level. Mechanical: Not Recommended
Special: Handle in a dry, inert, controlled environment. Other: Handle under argon.
Protective Gloves: Neoprene Eye Protection: Safety glasses
Other Protective Equipment: Wear protective clothing to prevent contamination of skin and clothes.
Work/Hygienic/Maintenance Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating and smoking. Do not blow dust off clothing or skin with compressed air.
IX SPECIAL PRECAUTIONS
Other Handling and Storage Conditions:
♦ Wash thoroughly after handling.
♦ Do not breathe dust, vapor, mist, or gas.
♦ Keep container closed.
♦ Keep away from heat, sparks and open flames.
♦ Store in tightly closed containers.
♦ Do not store near combustibles, Flammable solid.
♦ Keep dry.
Some of the chemicals listed herein are research or experimental substances with may be toxic, as defined by various governmental regulations. In accordance with Environmental Protection Agency regulations and the Toxic Substance Control Act (TSCA), these materials should only be handled by, or under direct supervision of a “technically qualified individual” as defined in 40 CFR 710.2(aa).
The above information is accurate to the best of our knowledge. However, since data, safety standards and governmental regulations are subject to changes, and the conditions of handling and use or misuse are beyond our control, ESPI makes no warranty, either expressed or implied with respect to the completeness or continuing accuracy of the information contained herein, and disclaims all liability for reliance thereon. Users should satisfy themselves that they have all current information relative to their particular use.
Prepared by: S. Dierks
Dated: January 1995