flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 75
Phenyl Salicylate
salol
laboratory grade, crystal
2-HOC6H4-1-CO2C6H5
F.W. 214.22
P0021 100 g $16.18
P0022 500 g 46.17
HAZARD ALERT: Slightly toxic by ingestion. LD50 (mouse) 3000 mg/kg.
Storage: Organic #3
Disposal: #18b
Shelf Life: Indefinite
Soluble: Slightly in water; most common organic solvents.
Color and Odor: White solid with disinfectant odor.
CAS No. 118-55-8
Technical Note: Melting point 44–46 °C.
o-Phosphoric Acid
orthophosphoric acid
14.8 Molar
reagent
H3PO4
F.W. 98.00
P0201 100 mL $15.64
P0023 500 mL 38.27
P0024 2.5 liters 80.81
P0181* 2.5 liters 99.33
(Packaged in PVC-coated bottle)
HAZARD ALERT: Skin and eye irritant; slightly toxic by ingestion and
inhalation; corrosive; burns tissue. LD50 1530 mg/kg. TLV 1 mg/m3.
Storage: Inorganic #9 in a dedicated acid cabinet. If one is not available,
store in a Flinn Saf-Cube™.
Disposal: #24b
Shelf Life: Good if stored safely.
Cap Safety Color Code: White
Soluble: Water (heat generated) and alcohol.
Color and Odor: Colorless, odorless liquid.
CAS No. 7664-38-2
Safety Purchase Suggestion: Buy and store only small package sizes
and small quantities. For safety reasons, Flinn offers larger sizes of phosphoric
acid and other hazardous substances in PVC-coated bottles. We have
attempted to price the products in these safer containers as low as possible.
*Phosphoric acid is exactly as described under catalog number P0024 but in a
PVC-coated bottle. In the event of breakage, acid and glass shards are safely
retained in a PVC outer envelope. Plas-Pak™ is a safer package for science
teachers.
Phosphorus, Red
Red phosphorus is designated a List I chemical by the Drug Enforcement
Agency (DEA) and is no longer available for sale. List I chemicals are defined
as chemicals that are used in and important to the manufacture of controlled
substances.
Plaster of Paris
see Calcium Sulfate
Platinum Wire
99.7% pure
Pt
A.W. 195.09
Supplied in one inch or multiples of one-inch lengths. If you order two inches,
the piece will be two inches long, etc.
Catalog No. B & S Gauge Diameter (inch) Weight (g/ft) Price/Inch
P0145 36 0.005 0.083 $12.31
P0146 32 0.008 0.212 14.73
P0147 30 0.010 0.331 22.10
P0148 28 0.013 0.560 28.43
P0149 26 0.016 0.848 31.36
P0150 24 0.020 1.320 66.65
P0151 22 0.025 2.070 57.82
Storage: Inorganic #1
Disposal: #27a
Shelf Life: Indefinite
Color and Odor: Metallic gray, odorless solid.
CAS No. 7440-06-4
Polyacrylamide
see Water Marbles, page 324
see Ghost Crystals, page 322
Polyethylene Oxide
see Super-Duper Polymer Gel, page 323
PolySnow™
“instant snow powder”
sodium polyacrylate
P0284 100 g $16.45
Storage: Organic #3
Disposal: #26a
Shelf Life: Good, if kept dry.
Soluble: Water
Color and Odor: White, odorless solid.
CAS No. 9033-79-8
Technical Note: Adding 150 mL of DI water to 3 g of PolySnow produces
over 300 mL of “snow.” More absorbent than traditional sodium polyacrylate.
Polyurethane Foam System
A package which consists of two viscous liquids. When these substances are
mixed, a rigid foam is produced. The volume of foam produced is 20–30 times
larger than the original mixture. Liquid “A” is a polyether polyol. Liquid “B” is a
polyfunctional isocyanate. Two pound set.
C0335 500 mL set $ 36.00
C0442 4 L set 275.00
HAZARD ALERT: Solution “A” contains a polyether polyol, a tertiary amine
and a silicone surfactant. Provide adequate ventilation and wear protective
clothing. Solution “B” contains a polyfunctional diisocyanate. Provide
adequate ventilation and avoid any body contact. Wear chemical splash
goggles, chemical gloves, apron and mix under a hood or with adequate
ventilation.
Storage: Liquid “A” Organic #2
Liquid “B” Organic #5
Disposal: Mix, form foam then #26a.
Shelf Life: Do not store longer than three years.
Soluble: Acetone and some other organic solvents.
Color and Odor: Solution A: Yellow/amber liquid, rubberlike odor.
Solution B: Brown/amber, odorless liquid.
Polyurethane
Foam System
C0335, etc.
What To Do the First Day of Lab?
Start the year with safety as your #1 goal. Before starting your first lab, take a
day or two to discuss the rules of the lab and the student safety contract and
administer a safety exam. If you don’t have a safety con tract, contact us and
we will send you a copy of our free Flinn Safety Contract. Let your students
know how important safety is to you and to their success in lab.
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