50 1-800-452-1261
Carbon Dioxide Gas continued Cerium(IV) Ammonium Nitrate continued
Storage: Inorganic #3
Disposal: #27f
Shelf Life: Good
Soluble: Water and alcohol.
Color and Odor: Orange/red solid with slight nitric acid odor.
CAS No. 16774-21-3
Cesium Chloride
laboratory grade, crystal
CsCl
F.W. 168.36
C0417 25 g $48.20
HAZARD ALERT: Slightly toxic by ingestion. LD50 2600 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Somewhat hygroscopic, keep tightly closed.
Soluble: Water
Color and Odor: White, odorless solid.
CAS No. 7647-17-8
Technical Note: Produces a brilliant violet color in flame tests.
Chalk
see Calcium Carbonate
Charcoal, Block
43⁄4" x 11⁄8" x 11⁄16" C0145 pkg./12 $42.35
HAZARD ALERT: Flammable solid.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf ™ Bag in a Flinn
Saf-Stor™ Can.
Color and Odor: Black, odorless solid.
Charcoal, Granular
Coconut C0048 500 g $27.35
activated
6–12 mesh
HAZARD ALERT: Flammable solid.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf ™ Bag in a Flinn
Saf-Stor™ Can.
Color and Odor: Gray/black, odorless solid.
CAS No. 7440-44-0
Technical Note: Activated charcoal is specially treated to increase internal
surface area for high absorptivity.
Charcoal, Powder
activated charcoal powder C0047 500 g $31.45
HAZARD ALERT: Flammable solid.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf ™ Bag in a Flinn
Saf-Stor™ Can.
Color and Odor: Black, odorless solid.
Charcoal, Wood
Powder C0130 500 g $19.50
HAZARD ALERT: Flammable solid.
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf ™ Bag in a Flinn
Saf-Stor™ Can.
Color and Odor: Black, odorless solid.
CAS No. 124-38-9
Carbon Dioxide Gas Preparation: CO2 gas can be produced from
dry ice. One to two pounds of dry ice should provide sufficient gas for 40–50
students. You will have to set up a generator apparatus that will enable you
to heat the dry ice by placing chunks in a water bath. The evolution of gas is
not sufficient unless warmed by water. Your delivery tube (from the generator)
should be rather long to allow the gas to reach room temperature. A drying
tube will also have to be part of the apparatus to remove moisture.
Some teachers set up a CO2 generator using a flask (about 250 mL size) into
which is placed a long-stem funnel and delivery tube. Using about 25 grams
of calcium carbonate (Flinn Catalog Nos. C0347, C0012 and C0013) and 6 Molar
hydrochloric acid (Flinn Catalog No. H0033) will produce approximately 6
liters of CO2 at room temperature and atmospheric
pressure. A drying tube
should be a part of the generation apparatus.
Catalase
from bovine liver
oxidizing enzyme C0359 1 g $38.75
Storage: Organic #1
Disposal: #26a
Shelf Life: Poor; keep refrigerated.
Color and Odor: Brown/gray, odorless solid.
CAS No. 9001-05-2
Technical Note: This enzyme is used to decompose hydrogen peroxide.
Units of activity are shown on the bottle label and vary from lot to lot. Currently
our label shows 3800 units per milligram
solid. We also provide a technical
data sheet to help you prepare catalase solutions. Catalase solution must
always be very fresh. Even a solution that is just a few hours old will render
poor results.
See free How To video at flinnsci.com.
Caustic Potash
see Potassium Hydroxide
Caustic Soda
see Sodium Hydroxide
Cellulase
enzyme complex that degrades cellulose
fine powder
C0172 25 g $41.30
Storage: Organic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Buff liquid with ginger odor.
CAS No. 9012-54-8
Cerium(IV) Ammonium Nitrate
ceric ammonium nitrate
reagent
(NH4)2Ce(NO3)6
F.W. 548.23
C0287 25 g $26.20
HAZARD ALERT: Strong oxidizer; avoid contact with organic material;
dangerous fire risk; skin irritant.
Good-Bye to
Continued on next column.
Chlorine and Bromine Water
Disposing of these two solutions is easy. How? Shake the contents of the
bottle well. Unscrew the bottle cap and place the bottle under your efficiently
operating fume hood. Both chlorine and bromine will vaporize and leave the
bottle. Every now and then put the cap back on, shake the bottle, and again
remove the cap. It does not take long for all the halogen to evaporate. You
will be left with a bottle of water, which can be poured down the drain. How
can you tell when all the halogen is gone? The odor is gone!
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