98 1-800-452-1261
Sulfur, Roll continued Sulfuric Acid continued
Sulfur has low toxicity.
May be a skin irritant.
Storage: Inorganic #10
Disposal: #26a
Shelf Life: Indefinite
Soluble: Slightly in alcohol and other organic solvents; insoluble in water.
Color and Odor: Yellow solid with faint rotten eggs odor.
CAS No. 7704-34-9
Sulfur, Precipitated
lac sulfur
laboratory grade, powder
S
A.W. 32.066
S0142 500 g $11.80
HAZARD ALERT: This finely divided form of sulfur can be a moderate fire
or explosion risk. Sulfur has low toxicity. When sulfur is burned, toxic sulfur
dioxide is produced. May be a skin irritant.
Storage: Inorganic #10
Disposal: #26a
Shelf Life: Indefinite
Soluble: Slightly in alcohol and other organic solvents; insoluble in water.
Color and Odor: Yellow solid with faint rotten egg odor.
CAS No. 7704-34-9
Sulfur Hexafluoride Gas
lecture bottle LB1030 0.5 lb
(37 liters)
$389.00
HAZARD ALERT: May react violently with organometallics and chemically
active metals.
Storage: In an area dedicated to bottled gases.
Disposal: Completely empty lecture bottle in a well-operating fume hood,
then follow #26a.
Shelf Life: Indefinite; if stored safely.
Soluble: Alcohol; slightly in water.
Color and Odor: Colorless, odorless.
CAS No. 2551-62-4
Sulfuric Acid
18 Molar
ACS, reagent
H2SO4
F.W. 98.08
S0228 100 mL $ 8.45
S0143 500 mL 18.00
S0144 2.5 liters 39.85
S0145* 2.5 liters 45.00/1
174.60/4
(*Packaged in PVC-coated bottle)
HAZARD ALERT: Severely corrosive to eyes, skin and other tissue;
considerable heat of dilution with water; mixing with water may cause spraying
and spattering. Solutions might best be made by immersing the mixing
vessel in an ice bath. Even very dilute solutions are harmful to eyes and
skin. Always add the acid to water, never the reverse; extremely hazardous in
contact with finely divided materials, carbides, chlorates, nitrates, and other
combustible materials. TLV 1 mg/m3. LD50 2140 mg/kg.
Storage: Inorganic #9 in a dedicated acid cabinet and away from any source
of water; if an acid cabinet is not available, store in a Flinn Saf-Cube™.
Disposal: #24b
Shelf Life: Good, but only if stored away from water and under safe conditions.
Sulfuric acid has an affinity to water—abstracting it from the air and
from organic substances, hence it chars wood, sugar, etc. If sulfuric acid has
turned dark brown on your shelf its purity would be in question.
Soluble: Water, evolving very considerable heat. Use an ice bath.
Color and Odor: Colorless liquid with sulfurous odor.
CAS No. 7664-93-9
Cap Safety Color Code: Yellow
Technical Note: Spilled sulfuric acid presents a very slippery floor problem.
We hope you understand why it is essential to maintain a bucket of dry sand
in the area where sulfuric acid is stored.
Safety Purchase Suggestion: Buy and store only small package sizes
and small quantities. For safety reasons, Flinn offers larger sizes of sulfuric
acid and other hazardous substances in PVC-coated bottles. We have
attempted to price the products in these safer containers as low as possible.
*Sulfuric acid is exactly as described under catalog number S0144 but in a
PVC-coated bottle. In the event of breakage, acid and glass shards are safely
retained in a PVC outer envelope. The PVC-coated bottle is a safer package
for science teachers.
Sulfuric Acid Solution
(as H2SO4)
12.5 Molar S0380 500 mL $16.15
S0406 1 liter 27.55
9 Molar S0414 1 liter $25.90
6 Molar S0415 500 mL $14.70
S0416 1 liter 23.35
3 Molar S0417 500 mL $10.75
S0418 1 liter 19.00
2 Molar S0205 1 liter $14.95
1 Molar S0202 500 mL $10.15
S0203 1 liter 13.75
0.1 Molar S0420 1 liter $11.20
HAZARD ALERT: Treat all sulfuric acid solutions with the same caution
you would have for concentrated sulfuric acid. For example, the pH of 0.05 M
sulfuric acid solution is 1.2.
Storage: Inorganic #9; preferably in a dedicated acid cabinet.
Disposal: #24b
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Colorless, odorless liquid.
T
Tes-Tape
see Glucose Test Strips
Test Papers (litmus, etc.)
see pages 201–203
Thermit™
black T0007 500 g $15.25
HAZARD ALERT: When ignited, produces an extremely hot (>2000 °C) reaction
mixture that will throw sparks 10–15 feet and is difficult to stop. Wear face,
hand, and eye protection and use a safety shield when performing demonstration.
Storage: Inorganic #4 inside a Flinn Saf-Stor™ Can and then in a dedicated
flammables cabinet.
Disposal: #26a
Shelf Life: Good if stored safely.
Color and Odor: White/gray/black, odorless solid.
CAS No. 69012-31-3
Technical Note: Thermit is a mixture of ferric oxide and very fine aluminum
powder. The thermite reaction requires a temperature of almost 1200 °C for
ignition, and is best performed using specially designed igniting sticks (see
next listing, T0086).
Thermite Igniting Sticks
T0086 pkg./10 $45.80
HAZARD ALERT: Thermite igniting sticks are a fire hazard when exposed
to a flame or temperatures above 500 °F. Contact us for a technical data sheet
relating to their use.
Storage: Inorganic #1 in a dedicated flammables cabinet.
Disposal: #26a
Shelf Life: Indefinite if kept dry.
Color and Odor: Silver gray metal on a copper stick, odorless.
Safety Purchase Suggestion: These igniting sticks are the easiest and
safest method for starting thermite reactions. Please consider using them
instead of magnesium metal ribbon or other chemical igniters.
Continued on next column.
How Much Can You Stand?
Various concentrations of chemicals are encountered in a “typical” school
science laboratory atmosphere. Knowing what concentrations create
unhealthy effects is not an easy task. An effort has been made to quantify
exposure levels based on extensive experience and data. These levels are
called Threshold Limit Values (TLVs). Please review the section of this catalog
dedicated to TLVs on pages 694–695.
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