Specification

Page 8 of 10
Date of Issue: 06/01/15
231 S. LaSalle Street, Suite 2000
Chicago, IL 60604
The National Toxicology Program (NTP):
NTP has concluded that respirable crystalline silica is a known
human carcinogen
LD50 (Silicon dioxide):
Rat oral >22,500 mg / kg
Mouse oral > 10,500 mg/kg
Section 12. Ecological Information
There is a very limited amount of ecological data available on the effects of releases that may occur from
this product being released into the environment. Clean up of the spilled product would not be expected
to leave any hazardous material that could cause a significant adverse impact. There is a limited amount
of ecological data available on crystalline silica, primarily because it is a naturally occurring mineral. An
adequate representation of these data is beyond the scope of this document.
Section 13. Disposal Considerations
Dispose of material as inert, non-metallic mineral in conformance with local, state and federal regulations.
Crystalline silica and limestone is not a RCRA hazardous waste.
Section 14. Transport Information
There are no special requirements for storage and transport
UN No:
None allocated
Dangerous goods class:
None allocated
Hazchem code:
None allocated
Poisons schedule:
None allocated
Packing group:
Not applicable
Label:
Not a DOT hazardous material. Local regulations may apply
Section 15. Regulatory Information
DOT hazard classification:
None
Placard requirement:
Not a DOT hazardous material. Local placarding regulations may
apply
California Proposition 65:
Warning: Airborne particles of respirable size of crystalline silica are
known to the State of California to cause cancer.
CERCLA hazardous substance
(40CFR Part 302):
Listed substance: No
Unlisted substance: No
Reportable quantity (RQ): None
Characteristic(s): Not applicable
RCRA waste number: Not applicable
SARA. Title III. Sections 302 /
303 (40CFR part 355 –
Emergency Planning and
Notification):
Extremely hazardous substance: No
SARA. Title III. Section 311 /
312 (40CFR part 370 –
Hazardous Chemical Reporting:
Community Right-To-Know):
Acute: Yes
Chronic: Yes
Fire: No
Pressure: No
Reactivity: No