Northern Nanotechnologies - MSDS Pb Cr O 4 rev 1 0 (Page 3)

poisoning while exposure continues or without strict exposure control as severe
kidney damage can result.

Section 5 ­ Fire Fighting Measures

Material does not burn.

Section 6 ­ Accidental Release Measures

Use personal protection recommended in Section 8. Isolate the hazard area and
deny entry to unnecessary and unprotected personnel. Absorb spill onto an
appropriate material. Collect and dispose of all waste in accordance with
applicable laws. This material is a water pollutant; keep out of drains, sewers,
ditches, and waterways.

Section 7 ­ Handling and Storage

For improved performance, store at 2-6ºC away from sunlight. Use appropriate
laboratory work practices, including wearing of laboratory coats, gloves, and
protective eyewear.

Section 8 - Exposure Controls/Personal Protection:

No exposure limits have been determined for nanocrystalline forms of this
material. The below exposure limits are based off the individual chemical
components. We recommend appropriate precautions be taken to limit exposure
to this material.

Exposure limits:

Lead Chromate:

Lead chromate is a cancer causing agent in humans. There may be no

safe level off exposure to a carcinogen, so all contact should be reduced to the
lowest possible level.

Inorganic lead compounds:

OSHA PEL 0.05 mg/m

3

TWA.

NIOSH REL 0.100 mg/m

3

TWA.

ACGIH TLV 0.05 mg/m

3

TWA.

Chromium compounds:

OSHA PEL 0.1 mg(CrO3)/m

3

TWA.

NIOSH REL 0.001 mg (Cr)/m

3

TWA

Northern Nanotechnologies Inc., 700 Bay St., Suite 1100, Toronto, ON M5G 1Z6 Tel (416) 260-8889 Fax (416) 260-8839