flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 81
Oxygen Gas continued Paraffin, Wax continued
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) 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
Palmitic Acid
hexadecanoic acid
laboratory grade, powder
CH3(CH2)14CO2H
F.W. 256.43
P0129 100 g $21.60
Storage: Organic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Hot alcohol; not water.
Color and Odor: White solid with waxlike odor.
CAS No. 57-10-3
Technical Note: Melting point 61–64 °C.
para-Dichlorobenzene
see page 58
Paraffin Oil
see Mineral Oil
Paraffin, Wax
laboratory grade
P0003 1 lb $10.00
Storage: Organic #3
Disposal: #26a
Shelf Life: Indefinite
Soluble: Warm alcohol, chloroform, petroleum ether, olive oil and other
organic solvents.
Color and Odor: Waxy white, odorless solid.
CAS No. 8002-74-2
Pectinase
enzyme
powder obtained from Aspergillus niger
P0285 5 g $41.05
Storage: Organic #2
Disposal: #26a
Shelf Life: Indefinite, when refrigerated; hygroscopic.
Soluble: Water
Color and Odor: Light tan solid with strong, sweet odor.
CAS No. 9032-75-1
Pentane
laboratory grade
CH3(CH2)3CH3
F.W. 72.15
P0213 100 mL $9.60
HAZARD ALERT: Flammable liquid; narcotic in high concentrations. Toxic
by ingestion and inhalation. LD50 400 mg/kg. TLV 1770 mg/m3.
Storage: Organic #3 in an approved flammables cabinet.
Disposal: #18b
Shelf Life: Indefinite
Soluble: Miscible with alcohol and many other organic solvents.
Color and Odor: Colorless liquid with a gasoline odor.
CAS No. 109-66-0
1-Pentanol
see n-Amyl Alcohol
Pentyl Alcohol
see n-Amyl Alcohol
Continued on next column.
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