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:    Boron Oxide

Formula:             B₂O₃

CAS Number:      1303-86-2

II.   HAZARDOUS INGREDIENTS

Hazardous Component:   Boron Oxide

Percent (%):                    0-100

OSHA/PEL:                       15 mg/m³ (for B₂O₃)

ACGIH/TLV:                     10 mg/m³ (for B₂O₃)

III.   PHYSICAL DATA

Boiling Point:                  1500 ^oC

Melting Point:                 450 ^oC

Specific Gravity:            1.85 gm/cc

Solubility in H₂O:            Slowly reacts with H₂O to give B(OH)₃

Appearance and Odor:   Colorless powder, pieces, no odor.

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point:  N/A

Autoignition Temperature:  N/A

Explosive Limits:  Lower:  N/A         Upper: N/A

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

Special Fire Fighting Procedures:  Firefighters must wear full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes.

Unusual Fire and Explosion Hazards:  None

V.   HEALTH HAZARD INFORMATION

Effects of Exposure:

To the best of our knowledge the chemical, physical and toxicological properties of boron oxide have not been thoroughly investigated and recorded

Boron oxide may produce irritation of the nasal mucous membranes and the respiratory tract.  Mild irritation to the skin, eye, and mucous membranes.  Prolonged skin contact may result in redness and irritation.

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION:  Remove to fresh air.

INGESTION:  Induce vomiting, seek immediate medical attention.

SKIN:  Remove any contaminated clothing, brush material off skin, flush with running water, wash carefully with soap and water.

EYES:  Flush with copious amounts of water for at least 15 minutes.

VII.   REACTIVITY DATA

Stability:  Stable

Incompatibility (Material to Avoid):  No data

Hazardous Polymerization:  Will not occur

Hazardous Decomposition Products:  None

VII.   SPILL OR LEAK PROCEDURES

Steps to Be Taken If Spilled or Released:  Sweep or scoop up and remove.

Waste Disposal Method:  In accordance with state, local, and federal waste disposal regulations.

VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection (specify type):  NIOSH approved dust, mist, vapor respirator.

Ventilation:  Use local exhaust to maintain concentration at low levels.  General exhaust is recommended.

Protective Gloves:  Neoprene

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 well-ventilated area.  Keep tightly sealed when not in use, read MSDS before using.  Wash thoroughly after use.

Work Practices:  Implement engineering and work practice controls to reduce and maintain concentration of exposure.  Use good housekeeping and sanitation practices.  Do not use tobacco or food in work area.  Wash thoroughly before eating or smoking.  Do not blow dust off clothing or skin with compressed air.  Maintain eyewash capable of sustained flushing, safety drench shower and facilities for washing.

The above information is believed to be correct, but does not purport to be all inclusive and shall only be used 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:                 August 2002