Page 84 - Demo

82
Chemicals
1-800-452-1261
flinnsci.com
o-PHOSPHORIC ACID continued
 HAZARD ALERT: Skin and eye irritant; slightly toxic by inges- tion 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 avail- able, store in a Flinn Saf-CubeTM.
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- PakTM is a safer package choice.
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.
Phthalic Anhydride
Storage: Organic #1
Disposal: #24a. U-Listed (U190); purchase small amounts for effec- tive inventory control.
Shelf Life: Poor; moisture sensitive.
Soluble: Alcohol, hot water, and carbon disulfide.
Color and Odor: White, odorless solid.
CAS No. 85-44-9
Plaster of Paris
see Calcium Sulfate
Platinum Wire
Supplied in one inch or multiples of one-inch lengths. If you order two inches, the piece will be two inches long, etc.
Continued on next column.
PLATINUM WIRE continued
Storage: Inorganic #1
Disposal: #27a
Shelf Life: Indefinite
Color and Odor: Metallic gray, odorless solid. CAS No. 7440-06-4
PolySnowTM
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
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
Polyvinyl Alcohol
Storage: Organic #2 Disposal: #26a
“instant snow powder” sodium polyacrylate
P0283
25 g
$ 7.75
P0284
100 g
14.65
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
Set
$35.20
reagent grade, flake
C8H4O3 F.W. 148.11
P0028
500 g
$21.55
99.7% pure Pt
A.W. 195.09
Catalog No.
B & S Gauge
Diameter (inch)
Weight (g/ft)
Price/Inch
P0145
36
0.005
0.083
$11.25
P0146
32
0.008
0.212
13.45
P0148
28
0.013
0.560
25.95
P0149
26
0.016
0.848
30.15
P0150
24
0.020
1.320
60.80
P0151
22
0.025
2.070
54.50
PTC Paper
PTC paper is prepared by soaking paper with phenyl thiocar- bamide (PTC). The LD50 for PTC is 3 mg/kg. Such a low LD50 suggests this is a very toxic substance. The solution to make the taste test paper contains approximately 50 mg of PTC per liter of water. Each strip of PTC paper therefore contains approximately 0.03 mg of PTC. We estimate that a person weighing about 50 kg (110 pounds) would have to lick and ingest 5000 2" x 1⁄4" strips of PTC paper to reach the LD50.
laboratory grade, granular
[CH2CH(OH)]n
P0153
100 g
$13.40
P0154
500 g
27.50
POLYVINYL ALCOHOL continued on next page.