Cerium Boride
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MATERIAL SAFETY DATA SHEET

 

 

I.   PRODUCT IDENTIFICATION

Manufacturer/Supplier:

ESPI Metals

1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

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Product Name:     Cerium Boride

Formula:              CeB6

CAS Number:       12008-02-5

 

 

II.   HAZARDOUS INGREDIENTS

Hazardous Component:  Cerium Boride

Percent (%):                   0-100

OSHA/PEL:                       N/E

ACGIH/TLV:                      N/E

HMIS Ratings:

Health:                             1

Flammability:                  1

Reactivity:                       1

 

 

III.   PHYSICAL DATA

Boiling Point:                   Decomposes

Melting Point:                  2190 oC

Specific Gravity:              N/E

Solubility in H2O:             Insoluble                                                              

Appearance and Odor:    Blue metallic powder, no odor.

 

 

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point:  N/A

Autoignition Temperature:  N/A

Flammable Limits:  Upper:  N/A       Lower:  N/A

Extinguishing Media:  Use suitable extinguishing media for surrounding materials and type of fire.

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:  When heated to decomposition cerium boride may emit toxic fumes of Ce, CeO2, and B2O3.

 

 

V.   HEALTH HAZARD INFORMATION

Effects of Exposure:

To the best of our knowledge the chemical, physical and toxicological properties of cerium boride have not been thoroughly investigated and recorded.

Cerium 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 the 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.

Boron affects the central nervous system.  Boron poisoning causes depression of the circulation, persistent vomiting and diarrhea, followed by profound shock and coma.  The temperature may become subnormal and a scarlatina form rash may cover the entire body.

Cerium salts increase the blood coagulation rate.  Exposure to cerium salts may increase sensitivity to heat, itching and skin lesions.  Large doses to experimental animals have caused writhing, ataxia, labored respiration, sedation, hypotension and death by cardiovascular collapse.

Acute and Chronic Effects:

Inhalation:  May cause coughing, sneezing, difficulty breathing and irritation of the mucous membrane of the respiratory tract.

Ingestion:  See above.

Skin:  May cause irritation, itching, inflammation and dermatitis.

Eye:  May cause burning sensation, irritation, redness and watering of the eyes.

Medical Conditions Generally Aggravated by Exposure:  Pre-existing respiratory disorders.

Carcinogenicity:  NTP:  No               IARC:  No             OSHA:  No

 

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION:  Remove victim to fresh air; keep warm ad quiet; give oxygen if breathing is difficult and 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.

SKIN:  Remove contaminated clothing; brush material off skin; wash affected area with mild soap and water; seek medical attention.

EYE:  Flush eyes with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes.  Seek medical attention.

 

 

VI.   REACTIVITY DATA

Stability:  Stable

Conditions to Avoid:  Heat, flame, and incompatible materials.

Incompatibility- Materials to Avoid:  Strong bases, oxidizers.

Hazardous Decomposition Products:  Fumes of Ce, CeO2, B, B2O3.

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.  Isolate spill area and provide ventilation.  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.

Waste Disposal Method:  Dispose of in accordance with Local, State and Federal Waste Disposal Regulations.

 


VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection:  NIOSH approved dust respirator.

Ventilation:  Use local exhaust to maintain concentration of exposure at low levels.  Handle in a dry, controlled atmosphere.  General exhaust is recommended.

Protective Gloves:  Impervious gloves.

Eye Protection:  Safety glasses

Other Protective Clothing or Equipment:  Protective gear suitable to prevent contamination.

 

 

IX.   SPECIAL PRECAUTIONS

Precautions to Be Taken in Handling and Storage:  Store in cool, dry area.  Store in tightly sealed container.  Wash thoroughly after handling.

Work  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 us tobacco or food in work area.  Wash thoroughly before eating and smoking.  Do not blow dust off clothing or skin with compressed air.  Maintain safety drench shower, eyewash capable of sustained flushing and facilities for washing.

TSCA Listed:            Yes

DOT Regulations:

Hazard Class:          None

 


The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide.  ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.

 

Issued by:                           S. Dierks

Revised/Verified:                  July 2004
 
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