MATERIAL SAFETY DATA SHEET: CALCIUM BARIUM SILICIDE

I - PRODUCT IDENTIFICATION

Item Name: CALCIUM BARIUM SILICIDE AND CALCIUM SILICON BARIUM

Company's Name: Polymet Alloys, Inc.

Company's Street: 1757 Highway 31

Company's P.O. Box 316

Company's City: Saginaw

Company's State: AL

Company's Country: US

Company's Zip Code: 35137

Company's Emerg Ph #: 800-424-9300 CHEMTREC

Company's Info Ph #: 205-620-1266 / 1281 fax

Date MSDS Prepared: 01JAN00

Safety Data Review Date: 12DEC01

Type Of Container: Supersac, Drums or Cored Wire

II – INGREDIENTS/IDENTITY INFORMATION

CALCIUM 14 – 18%

BARIUM 14 – 18%

SILICON 60 – 65%

Iron 4% max

III - PHYSICAL DATA

Appearance And Odor: SHINY GREY METALLLIC CHIPS AND POWDER.

IV - FIRE AND EXPLOSION HAZARDS DATA

Flash Point: N/A

Extinguishing Media: CARBON DIOXIDE, DRY CHEMICAL POWDER, OR APPROPRIATE

FOAM. REACTS SLOWLY WITH WATER AND WILL FORM FLAMMABLE/EXPLOSIVE HYDROGEN GAS

Special Fire Fighting Proc: WEAR SELF-CONTAINED BREATHING APPARATUS AND

PROTECTIVE CLOTHING TO PREVENT CONTACT WITH SKIN AND EYES.

Unusual Fire And Explosion Hazards: EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

V - HEALTH HAZARD INFORMATION

Toxicity: INHALATION: NOT KNOWN

ORAL: RAT, LD 50:7, 340 MG/KG

OSHA PEL: 15MG/M3 TOTAL DUST-5MG/M

ACGITH-TLV: 10MG/M3

Other Recommended Limit: NONE RECOMMENDED

Route Of Entry - Inhalation: YES

Route Of Entry - Skin: YES

Route Of Entry - Ingestion: YES

Health Haz Acute And Chronic: EYES- IRRITATION. SKIN- IRRITATION. MAY BE

HARMFUL BY INHALATION, INGESTION, OR SKIN ABSORPTION. TO THE BEST OF OUR

KNOWLEDGE, THE CHEMICAL, PHYSICAL, AND TOXICOLOGICAL PROPERTIES HAVE NOT

BEEN THOROUGHLY INVESTIGATED.

Carcinogenicity - NTP: NO

Carcinogenicity - IARC: NO

Carcinogenicity - OSHA: NO

Emergency/First Aid Proc: EYES- IMMEDIATELY FLUSH WITH COPIOUS AMOUNTS OF

WATER FOR AT LEAST 15 MIN. SKIN- IMMEDIATELY WASH WITH SOAP AND COPIOUS

AMOUNTS OF WATER. INHALATION- REMOVE TO FRESH AIR. IF NOT BREATHING GIVE

ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN. INGESTION-

WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS. CALL A PHYSICIAN

VI - REACTIVITY DATA

Stability: NO

Materials To Avoid: REACTS VIOLENTLY WITH WATER. AVOID STRONG OXIDIZING

AGENTS AND STRONG ACIDS.

Hazardous Decomp Products: SILICON OXIDE. LIBERATES FLAMMABLE/EXPLOSIVE

HYDROGEN GAS.

Hazardous Poly Occur: NO

VII - SPILL OR LEAK PROCEDURES

Steps If Material Released/Spill: WEAR RESPIRATOR, CHEMICAL SAFETY GOGGLES,

RUBBER BOOTS AND HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN A BAG AND HOLD FOR

WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE AREA AND WASH SPILL SITE

AFTER MATERIAL PICKUP IS COMPLETE.

If material uncontaminated, collect and reuse as product -----KEEP DRY,

If contaminated, collect for waste disposal.

Waste Disposal Method: DISPOSE OF IN ACCORDANCE WITH LOCAL, STATE, AND

LOCAL REGULATIONS.

Precautions-Handling/Storing: AVOID INHALATION. AVOID CONTACT WITH EYES,

SKIN AND CLOTHING. STORE UNDER NITROGEN. KEEP CONTAINERS TIGHTLY CLOSED.

STORE IN A COOL, DRY PLACE.

Other Precautions: NONE

VIII - SPECIAL PROTECTION INFORMATION

Respiratory Protection: NIOSH/MSHA-APPROVED RESPIRATOR.

Ventilation: MECHANICAL EXHAUST REQUIRED.

Protective Gloves: COMPATIBLE CHEMICAL-RESISTANT GLOVES.

Eye Protection: CHEMICAL SAFETY GOGGLES.

Other Protective Equipment: SAFETY SHOWER AND EYE BATH.

Work Hygienic Practices: WASH THOROUGHLY AFTER HANDLING.

Suppl. Safety & Health Data: NONE

IX - SPECIAL PRECAUTIONS

Special Hazard Precautions: WEAR RESPIRATOR, CHEMICAL SAFETY GOGGLES,

RUBBER BOOTS AND HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN A BAG AND HOLD FOR

WASTE DISPOSAL. AVOID RAISING DUST. VENTILATE AREA AND WASH SPILL SITE

AFTER MATERIAL PICKUP IS COMPLETE. FIRST AID: EYES- IMMEDIATELY FLUSH WITH

COPIOUS AMOUNTS OF WATER FOR AT LEAST 15 MIN. SKIN- IMMEDIATELY WASH WITH

SOAP AND COPIOUS AMOUNTS OF WATER. INHALATION- REMOVE TO FRESH AIR. IF NOT

BREATHING GIVE ARTIFICIAL RESPIRATION. IF BREATHING IS DIFFICULT, GIVE

OXYGEN. INGESTION- WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS.

CALL A PHYSICIAN.

Protect Eye: Y

Protect Skin: Y

Protect Respiratory: Y

X – LABLE DATA

SPECIAL PRECAUTIONS

Common Name: CALCIUM BARIUM SILICIDE

Chronic Hazard: NO

Signal Word: NO

Acute Health Hazard-Moderate: X

Contact Hazard-Moderate: X

Fire Hazard-Severe: X

Reactivity Hazard-Severe: X

HAZMAT INFO:

Product Name: Water Reactive, Solid, n.o.s. (Calcium Barium Silicide), 4.3, UN2813, PGIII

Labels and Placards: Dangerous When Wet – 4.3

Approved Packaging: According to C.F.R. 49

SPECIAL PRECAUTIONS

IMPORTANT: The purpose of this sheet is to set out pertinent information which may be necessary to evaluate health, safety and environmental hazards when handling the material and to set forth safety precautions for safe handling of this material. Handling practices set forth herein are recommended minimums. Polymet Alloys, Inc. and RIMA Industrial S/A assumes no responsibility in the safe handling of the material by others and makes no representation or warranty, expressed or implied, as to completeness, accurateness, or currency of any data contained herein.