MSDS

EC50 (Green algae): 1.5 mg/L (72hr)

FOR CALCIUM CARBONATE:

Environmental Fate: This chemical is not expected to have a significant impact when

released into the environment.

Environmental Toxicity: TLm (Mosquito Fish): 240 ppm/24hr; 220 ppm/48hr; 160 ppm/96hr

at 70-73.5 degrees F (21-23 degrees C)

FOR CALCIUM OXIDE:

Environmental Fate: Not available.

Environmental Toxicity: This chemical is expected to be toxic to aquatic life.

TLm (Mosquito Fish): 240 ppm/24hr – toxic

TLm (Sunfish): 100 ppm/3hr – toxic

TLm (Vector snail): 300 ppm/24hr – lethal

FOR TITANIUM DIOXIDE:

Environmental Fate: Not available.

Environmental Toxicity: Not available.

FOR XYLENE:

Environmental Fate: When released into the soil, this material may evaporate to a

moderate extent. When released into the soil, this material is expected

to leach into groundwater. When released into the soil, this material may

biodegrade to a moderate extent. When released into water, this

material may evaporate to a moderate extent. When released into water,

this material may biodegrade to a moderate extent. When released into

the air, this material may be moderately degraded by reaction with

photochemically produced hydroxyl radicals. When released into the air,

this material is expected to have a half-life of less than 1 day. This

material is not expected to significantly bioaccumulate. [Mixed xylenes:

octanol / water partition coefficient 3.1 - 3.2; bioconcentration factor = 1.3

(eels).]

Environmental Toxicity: This material is expected to be slightly toxic to aquatic life.

LC50 – Range 10-100 mg/L/96hr (fish)

FOR MDI:

Environmental Fate: Aquatic: Rapidly hydrolyzes to form an insoluble crust.

Terrestrial: Will bind with moist soil. No leaching will occur.

Atmospheric: Remains in the vapor phase and is degraded by

photochemically produced hydroxyl radicals (half-life is 32 hours).

Will not bioconcentrate or biodegrade.

Environmental Toxicity: This material may be toxic to some types of aquatic life.

LC50 – >500 mg/L/24hr static (Daphnia magna, Limnea Stagnalis, and

Zebra fish).