62 1-800-452-1261
Ferric(ous) Oxide
see Iron Oxide, Black
Ferric…Ferrous…
see Iron(III) and Iron(II)
Ferrofluid
See page 250
Ferrous Ammonium Sulfate
reagent grade, crystal
Fe(NH4)2(SO4)2•6H2O
F.W. 392.16
F0013 100 g $12.35
F0014 500 g 32.00
HAZARD ALERT: Slightly toxic by ingestion. LD50 3250 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Fair to poor; substance deliquescent and affected by light; store
in a Flinn Chem-Saf ™ Bag and then inside a Flinn Saf-Stor™ Can.
Soluble: Water; not alcohol.
Color and Odor: Light green, odorless solid.
CAS No. 7783-85-9
Foam
see Polyurethane Foam System
Food Coloring Dyes
Dye set V0003 set $6.15
contains 0.25 oz. each of red, yellow, blue and green
Red food dye V0006 100 mL $13.20
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Various as above, odorless.
Food Dyes, FD&C
Set of seven
FD&C Red 3, Red 40, Yellow 5,
Yellow 6, Green 3, Blue 1 and Blue 2
AP7375 set $42.80
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Varied colors; odorless.
Formalternate™, Concentrate
nonformaldehyde substitute
F0056* 500 mL $22.80
*Each 500 mL makes 5 liters of ready-to-use solution.
Storage: Organic #2
Disposal: #26b
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Colorless odorless liquid.
Technical Note: Formalternate, F0056, can be used instead of formaldehyde
for storage (not fixation) of biological specimens. F0056 is sold in
concentrated form: Dilute 1 volume concentrate per 9 volumes water to make
10 volumes of solution. Complete use instructions are furnished. This solution
is an alternative for formaldehyde for biological specimen storage only. It is
not a chemical substitute.
Formic Acid
23 Molar F0023 500 mL $26.20
88% solution
ACS reagent
HCOOH
F.W. 46.03
HAZARD ALERT: Corrosive to skin and tissue; reacts violently with
bases. Upon aging, decomposes to carbon monoxide and water thus creating
potential explosive danger in a tightly sealed bottle. Explosions have occurred.
Slightly toxic by ingestion
and inhalation. LD50 1100 mg/kg. TLV 9.4 mg/m3.
Storage: Organic #1 in a dedicated acid cabinet; if one is not available store
in a Flinn Saf-Cube™.
Disposal: #24a. U-Listed (U123); purchase small amounts for effective inventory
control.
Shelf Life: Poor; research suggests it ages poorly and may be an explosion
risk. Avoid extended storage.
Soluble: Water, alcohol, and ether.
Color and Odor: Colorless liquid with penetrating, strong vinegarlike odor.
CAS No. 64-18-6
Fructose
see Levulose
G
d-Galactose
anhydrous
C6H12O6
F.W. 180.09
G0018 100 g $46.50
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Hot water and pyridine.
Color and Odor: White solid with malt odor.
CAS No. 59-23-4
Gallium
small pieces
Ga
A.W. 69.72
G0031 2.5 g $62.00
Storage: Inorganic #1
Disposal: #27a
Shelf Life: Poor; moisture sensitive.
Soluble: Acid, alkali, and slightly in mercury.
Color and Odor: Silvery/white, odorless solid/liquid.
CAS No. 7440-55-3
Technical Note: Melting point is 29.8 °C; may be a liquid or fused solid.
Gases, Lecture Bottle
See individual listing in bottled gas section of Catalog and repeated under
individual gas names (e.g., oxygen) in chemical listings.
Gelatin
laboratory grade, granular
medium Bloom G0004 500 g $22.60
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Hot water; insoluble in most organic solvents.
Color and Odor: Buff solid with a faint, musty odor.
CAS No. 9000-70-8
Technical Note: Mix 25–30 g per liter of deionized water to make a firm gel.
Gelatin Capsules
see page 104
Gentian Violet
see Crystal Violet
Ghost Crystals
see page 332 in the Chemistry of Toys section
Ethyl Ether
It’s the end of the school year—have you checked the expiration date of
your ethyl ether? We strongly recommend that ethyl ether not be stored for
periods longer than 3 to 6 months. With age, ethyl ether may form explosive
peroxides. If your ethyl ether is nearing its expiration date, dispose of it
before leaving for the summer. Check your current Flinn Scientific Catalog/
Reference Manual for the proper disposal method.
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