MATERIAL SAFETY DATA SHEET 01891 Pg. 1
Revised: 4/1/97
1. Chemical Product and Contact Information
Product Name: Fused Silica Crucible Part Number:
529-052
LECO Corporation
3000 Lakeview
St. Joseph, Michigan 49085
Information: 269-983-5531
Chemtrec: 800-424-9300
LPC-410R
(Chemtrec Int'l: 202-483-7616)
2. Composition/Information on Ingredients
OSHA ACGIH Other Typical %
Component CAS No. PEL (mg/m3) TLV (mg/m 3) Limits by Weight
Fused Silica 60676-86-0 0.1 (resp) 0.1 (resp) 98
Cristobalite 14464-46-1 0.05 (resp) 0.05 (resp) <4
Quartz 14808-60-7 0.1 (resp) 0.1 (resp) < 0.3
3. Hazard Identification
EMERGENCY OVERVIEW
No unusual spill or fire hazard; moderate inhalation long-term health risk. White shape.
Potential Health Effects
EYES: Irritation.
SKIN: Possible abrasion, irritation.
INHALATION: Tight chest, coughing, wheezing, dypsnea.
INGESTION: Not available.
MEDICAL CONDITIONS AGGRAVATED: Not available.
CHRONIC OVEREXPOSURE: Long term overexposure to inhalation of airborne silica may cause
silicosis, a disease involving fibrotic lung damage.
ACUTE OVEREXPOSURE: Not available.
CARCINOGENICITY: IARC has concluded, based on sufficient animal evidence and limited
human evidence, that crystalline silicas (cristobalite, quartz, tridymite) are probable human
carcinogens.
P/N: 529-052
MATERIAL SAFETY DATA SHEET 01891 Pg. 2
4. First Aid Measures
EYES: Flush with water.
SKIN: Wash with soap and water.
INHALATION: Remove to fresh air.
INGESTION: Not available.
5. Fire Fighting Measures
FLAMMABLE PROPERTIES: Non-flammable.
Flash Point: None Method Used: Not applicable.
Flammable Limits (% by Volume in Air):
Lower: None. Upper: None.
AUTO-IGNITION TEMPERATURE: Not applicable.
HAZARDOUS COMBUSTION PRODUCTS: Not available.
EXTINGUISHING MEDIA: Not available.
FIREFIGHTING INSTRUCTIONS: Not available.
6. Accidental Release Measures
SMALL/LARGE SPILL: Not available.
7. Handling and Storage
HANDLING: Do not allow to become wet. If product becomes wet it must be dried thoroughly
before putting into service. If wet products are put into service, explosive spalling can occur.
Use above 2012掳 F. (1100掳 C.) will cause additional crystalline silica (cristobalite and tridymite)
to form by conversion from fused silica.
STORAGE: Keep container closed.
8. Exposure Controls/Personal Protection
ENGINEERING CONTROLS: Provide sufficient mechanical (General and/or Local Exhaust)
ventilation to maintain exposure below TLVs or PELs.
RESPIRATORY PROTECTION: Recommended if TLVs or PELs are exceeded.
SKIN AND HAND PROTECTION: Abrasion resistant recommended.
EYE AND FACE PROTECTION: Safety glasses with side shields.
OTHER PROTECTIVE EQUIPMENT: Protective shoes recommended (Steel toe type)..
P/N: 529-052
MATERIAL SAFETY DATA SHEET 01891 Pg. 3
9. Physical and Chemical Properties
APPEARANCE: White shape.
BOILING POINT: Not available.
FREEZE-MELT POINT: 3092掳 F. (1700掳 C.)
VAPOR PRESSURE (mm): None.
VAPOR DENSITY (air = 1): Not available.
SOLUBILITY IN WATER: None.
SPECIFIC GRAVITY: 2.2 (Apparent)
pH: None.
ODOR: None.
PERCENT VOLATILES: 0
EVAPORATION RATE (Butyl Acetate = 1): None.
10. Stability and Reactivity
CHEMICAL STABILITY: Stable.
INCOMPATIBILITY: Hydrofluoric acid and powerful oxidizers.
HAZARDOUS DECOMPOSITION PRODUCTS: Not available.
HAZARDOUS POLYMERIZATION: None.
11. Toxicological Information
None reported.
12. Ecological Information
Not available.
13. Disposal Consideration
Approved landfill in accordance with all local, state and federal regulations.
14. Transportation Information
U.S.A. DOT: Not regulated.
P/N: 529-052
MATERIAL SAFETY DATA SHEET 01891 Pg. 4
15. Regulatory Information
U.S. FEDERAL REGULATIONS:
TSCA STATUS: On Toxic Substance Control Inventory.
CERCLA REPORTABLE QUANTITY: None.
SARA TITLE III:
Section 302 Extremely Hazardous Substances: None.
Section 311/312 Hazardous Categories: Chronic.
Section 313 Toxic Chemicals: None.
RCRA STATUS: Not regulated.
CANADIAN REGULATIONS:
WHMIS: Not regulated.
16. Other Information
Prepared By:
Duane Ostenson
Information herein is given in good faith as authoritative and valid; however, no warranty, expressed
or implied can be made.
P/N: 529-052
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