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Chemicals
1-800-452-1261
Olive Oil
Storage: Organic #3
Disposal: #26a
Shelf Life: Indefinite if kept tightly closed; store in a Flinn Chem- Saf TM Bag.
Soluble: Carbon disulfide, chloroform, and ether; slightly in alcohol.
Color and Odor: Yellow liquid with a slightly pleasant odor.
CAS No. 8001-25-0
Technical Note: Not for human consumption.
Onion’s Fusible Alloy
Storage: Inorganic #1
Disposal: #27d
Shelf Life: Indefinite
Color and Odor: Metallic gray, odorless solid.
Technical Note: Onion’s Fusible Alloy is a safer choice as a metal alloy in lieu of high lead- or cadmium-containing alloys. This alloy has a melting point about 15 °F (8 °C) below the boiling point of water. Students are enthusiastic about the use of this alloy particu- larly since it melts before water boils.
Orange G
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Orange, odorless solid. CAS No. 1936-15-8
C.I. #16230
Orange III
see Methyl Orange
Orcinol
 HAZARD ALERT: Body tissue irritant; moderately toxic by inges- tion. LD50 (guinea pig) 600 mg/kg.
Storage: Organic #8
Disposal: #18b
Shelf Life: Indefinite but light-sensitive. Soluble: Water and alcohol.
Color and Odor: White, odorless solid. CAS No. 6153-39-5
Ortho Phosphoric Acid
see Phosphoric Acid
Oxalic Acid
flinnsci.com
laboratory grade
Q0004
200 mL
$15.50
crystal H2C2O4•2H2O F.W. 126.07
Reagent
Q0005
100 g
$10.55
Q0007
500 g
29.85
Laboratory grade
Q0006
500 g
$14.45
 HAZARD ALERT: Skin and eye irritant; moderately toxic by inges- tion. LD50 375 mg/kg. TLV 1 mg/m3.
Storage: Organic #1
Disposal: #24a
Shelf Life: Indefinite
Soluble: Water and many common organic solvents. Color and Odor: White, odorless solid.
CAS No. 6153-56-6
Oxygen Gas
 HAZARD ALERT: Fire risk.
Storage: In an area dedicated to bottled gases; store away from any source of heat or flame.
Disposal: Completely empty lecture bottle, then follow #26a. Shelf Life: Indefinite if stored safely.
Soluble: Slightly soluble in water and alcohol.
Color and Odor: Colorless, odorless.
CAS No. 7782-44-7
Technical Note: Oxygen can be generated by using 30% hydrogen peroxide (H2O2). It is vital that you give 30% H2O2 your highest level of safety consciousness; it is a very hazardous substance.
Set up the apparatus to create a gas generator. A 250-mL flask, a two-hole rubber stopper, a delivery tube and a dropping funnel will be required. A drying tube containing anhydrous calcium chloride (Flinn C0016 or C0017) or Drierite® (Flinn D0011 or D0012) will be required since the O2 will have an undesirably high water content. Place two grams of manganese dioxide (Flinn M0025 or M0026) in the flask. Now dilute 50 mL of 30% H2O2 to 100 mL using distilled water. Add H2O2 dropwise through the dropping funnel into the flask. This process will generate about 6 liters of oxygen. Do not use potassium chlorate to generate oxygen.
P Palladium on Carbon, 10%
 HAZARD ALERT: Flammable solid; may be pyrophoric when damp and in presence of residual or adsorbed hydrogen. May cause an allergic skin reaction; possible sensitizer.
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Fair; remove residual hydrogen after use and keep dry. Soluble: Insoluble in water and common organic solvents.
Color and Odor: Dark gray to black powder; odorless.
Technical Note: Most widely used catalyst for hydrogenation reac- tions of alkenes and alkynes. Typical amount needed for microscale lab experiment is 20 mg; one gram is enough for 50 lab groups. Catalyst may be recovered and regenerated; purge to remove resid- ual hydrogen. Do not store wet in presence of adsorbed hydrogen. CAS No. 7440-05-3 (Palladium)
Palmitic Acid
cadmium-free alloy with a low melting point as an alternative to Wood’s Metal Ingredients: bismuth, lead, tin
Q0021
100 g
$23.05
Lecture bottle
LB1025
2 cu. ft. (56 liters)
$259.30
Refillable cylinder
LB1080
3.4 cu. ft. (95 liters)
$378.55
acid orange 10
biological stain or indicator pH 11.5 yellow to 14.0 pink
Q0027
10 g
$20.10
orcin
reagent for certain carbohydrates
5-CH3C6H3-1,3-(OH)2•H2O F.W. 142.15
Q0015
1.5 g
$23.45
contains 10% palladium on activated carbon powder, eggshell, reduced form
Pd/C
F.W. 106.42 (palladium)
P0287
1g
$23.30
Laboratory Headache
A headache acquired in a laboratory may be nature’s way of alerting you to the presence of toxic vapors. A laboratory can become saturated with toxic vapors that are not always evident by an odor. When you or a student complains of a headache, it may well be time to throw open the lab windows, take yourself and your students to a source of fresh air and allow the lab to be thoroughly ventilated.
hexadecanoic acid laboratory grade, powder
CH3(CH2)14CO2H F.W. 256.43
P0129
100 g
$20.65
PALMITIC ACID continued on next page.