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

E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

Product Name:     Magnesium Oxide Single Crystal

Formula:              MgO

II.   HAZARDOUS INGREDIENTS

Hazardous Component:  Magnesium Oxide

Percent (%):                   0-100

OSHA/PEL:                      15 mg/m³

ACGIH/TLV:                     10 mg/m³

SARA Title III:                No

III.   PHYSICAL DATA

Boiling Point:                   3600 ^oC

Melting Point:                  2852 ^oC

Specific Gravity:             3.58 g/cc

Solubility in H₂O:            Insoluble

Appearance and Odor:   Transparent solid, odorless

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point:  N/A

Method Used:  Non-flammable

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

Autoignition Temperature:  N/A

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

Special Firefighting Procedures:  Firefighters must wear full face, self-contained breathing apparatus with full protective clothing.

Unusual Fire & Explosion Hazard:  None known

V.   HEALTH HAZARD INFORMATION

Effects of Exposure:  This material is a large sized crystal, it's entry into the human system is unlikely unless swallowed.

Inhalation:  None reported

Ingestion:  Material is brittle, the fractured pieces can have sharp edges and can cause cuts.

Skin:  Material is brittle, the fractured pieces can have sharp edges and can cause cuts.

Eye:  None reported

Carcinogenicity:  NTP:  No      IARC:  No    OSHA:  No

Primary Routes of Entry:  Ingestion

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION:  Material is unlikely to be inhaled.

INGESTION:  Get immediate medical attention.

SKIN:  Material will not be absorbed through the skin, treat as usual for cuts or abrasions.

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

VI.   REACTIVITY DATA

Stability:  Stable

Conditions To Avoid:  Reacts slowly with moisture, and CO₂ in air.

Incompatibility (Materials to Avoid):   No data

Hazardous Decomposition Products:  None known

Hazardous Polymerization:  Will not occur

Solubility:  Insoluble in organic solvents, attacked by acids and alkalis.

VII.   SPILL OR LEAK PROCEDURES

Steps to Be Taken in Case Material is Released or Spilled:  Sweep or scoop up.

Waste Disposal Method:  In accordance with Local, State and Federal Waste Disposal Regulations.

VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection (Specify Type):  Unlikely to be inhaled

Ventilation:  Mechanical exhaust

Protective Gloves:  Protective gloves are recommended

Eye Protection:  Safety Goggles

Other Protective Equipment:  Normal Lab Wear

IX.   SPECIAL PRECAUTIONS

Precautions to Be Taken in Handling and Storage:  Wear gloves to prevent injury to hands.  Wash thoroughly after handling.   Keep container tightly closed.  Store away form water/moisture.  Do not store together with acids.

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

Date:                    June 2003