82 1-800-452-1261
tert-Pentyl Alcohol
2-methyl-2-pentanol, tert-amyl alcohol
reagent grade, 99%
CH3CH2C(CH3)2OH
F.W. 88.15
P0286 500 mL $48.85
HAZARD ALERT: Flammable liquid and vapor; dangerous fire risk.
Moderately toxic by ingestion and inhalation; respiratory tract irritant. Use
only in a hood or well-ventilated area. LD50 1000 mg/kg.
Storage: Organic #2 in a dedicated flammables cabinet. If one is not available,
store in a Flinn Saf-Stor™ Can.
Disposal: #18b
Shelf Life: Fair; volatile liquid. Store in a cool, dry place.
Soluble: Ethyl alcohol and ether; slightly soluble in water.
Color and Odor: Clear, colorless liquid with pungent, unpleasant odor.
CAS No. 75-85-4
Pepsin
enzyme
laboratory grade, powder
Activity: 1:3000 P0006 25 g $10.95
P0007 100 g 32.00
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water; not alcohol.
Color and Odor: Buff solid with sour malt odor.
CAS No. 9001-75-6
Technical Note: Use a 0.5% solution for protein digestion.
Petroleum Ether
ligroine
Reagent P0014 500 mL $ 14.40
P0015 4 liters 67.50/1
261.80/4
Laboratory grade P0275 500 mL $15.00
HAZARD ALERT: Flammable liquid; dangerous fire risk.
Storage: Organic #3 in a dedicated flammables cabinet. If a flammables
cabinet is not available store in a Flinn Saf-Stor™ Can.
Disposal: #18b
Shelf Life: Indefinite if stored safely.
Soluble: Miscible with many organic solvents; insoluble in water.
Color and Odor: Colorless liquid with natural gas-like odor.
CAS No. 8032-32-4
Technical Note: Technically the name petroleum ether is a misnomer. In the
chemical sense it is not an ether, but consists chiefly of low boiling fractions
(B.P. 30–60 °C) of petroleum,
mostly pentanes and hexanes. Names like benzin
and naphtha are synonymous to petroleum ether, which is not a peroxidizable
substance like ethyl ether.
1,10-Phenanthroline
o-phenanthroline, monohydrate
reagent grade, granular
C12H8N2•H2O
F.W. 198.21
P0155 5 g $34.65
HAZARD ALERT: Highly toxic by ingestion; LD50 132 mg/kg.
Storage: Organic #2
Disposal: #5
Shelf Life: Poor; hygroscopic.
Soluble: Alcohol; slightly in water.
1,10-Phenanthroline continued
Color and Odor: White, odorless solid.
CAS No. 5144-89-8
Technical Note: Forms a complex with iron(II) or ferrous ions called ferroin,
which is used as an indicator in redox systems.
Phenol Solution
5%, aqueous P0103 500 mL $20.10
HAZARD ALERT: Moderately toxic by ingestion, inhalation, and skin
absorption; avoid skin contact.
Storage: Organic #8
Disposal: #24a
Shelf Life: Good
Color and Odor: Colorless liquid with slight disinfectant odor.
Phenol Red
indicator, sodium salt
pH 6.8 yellow to 8.4 red
reagent
C19H13NaO5S
F.W. 376.36
P0188 5 g $15.25
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Red, odorless solid.
CAS No. 34487-61-1
Phenol Red Indicator Solution
0.02%, aqueous
P0100 100 mL $ 4.80
P0101 500 mL 11.50
Storage: Organic #9
Disposal: #26b
Shelf Life: Good
Color and Odor: Red, odorless liquid.
Phenolphthalein
indicator, powder
pH 8.2 colorless to 10.0 pink
C20H14O4
F.W. 318.31
Reagent P0017 25 g $ 9.06
P0018 100 g 16.20
Laboratory grade P0276 100 g $13.85
. HAZARD ALERT: Possible carcinogen. Phenolphthalein is listed as a
suspected reproductive toxin by the state of CA (Proposition 65). Possible
reproductive/fertility hazard.
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Alcohol and alkalies; insoluble in water.
Color and Odor: White, odorless solid.
CAS No. 77-09-8
Phenolphthalein Indicator Solution
Alcoholic
1% P0019 100 mL $5.40
P0020 500 mL 7.75
0.5% P0115 100 mL $5.00
P0116 500 mL 7.67
HAZARD ALERT: Alcohol solution; flammable liquid; fire risk; skin, eyes,
and respiratory irritant. Possible reproductive/fertility hazard.
Storage: Organic #9 in a dedicated flammables cabinet.
If one is not available,
store in a Flinn Saf-Stor™ Can.
Disposal: #18a
Shelf Life: Indefinite
Color and Odor: Colorless liquid with alcohol odor.
Goggle Use
Continued on next column.
When is it appropriate to wear goggles? Science teachers often respond by
citing specific situations (e.g., when working with strong bases, when working
with acids, when working with biuret). A good general rule would be…
WORKING WITH CHEMICALS… ANY CHEMICALS… WEAR GOGGLES!
Wear chemical splash goggles whenever
working with chemicals, glassware or heat.
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