Page 50 - Demo

Chemicals
Ethyl Alcohol (Burner Fuel, Safety)
Denatured ethyl alcohol with added sodium salt. The added presence of the sodium causes the
flame to be more visible, thus reducing the potential for accidental burns.
E0025 4 liters
1-800-452-1261
48
flinnsci.com
HAZARD ALERT: Dangerous fire risk; addition of denaturant makes the product poisonous—it cannot be made nonpoisonous. Storage: Organic #2 in a dedicated flammables cabinet. If a flam- mables cabinet is not available, store in a Flinn Saf-Stor TM Can. Disposal: #26b
Shelf Life: Excellent if stored safely.
Soluble: Miscible with water and many organic solvents.
Color and Odor: Colorless liquid with alcohol odor.
Safety Purchase Suggestion: Do not buy large quantities or large package sizes of ethyl alcohol unless you have safe and fire-resis- tant storage facilities.
Technical Note: Never allow the use of duplicator fluid for fuel- ing alcohol burners. The products of combustion from duplicator fluids are extremely hazardous to your health and the health of your students.
Safer Alternative for Alcohol Burners: Consider acquiring portable gas burners that operate from small bottles of gas. We suggest these portable gas burners are safer than alcohol burners. Yes, such burn- ers are expensive, but if you calculate the real cost over the life of the burners, it may easily be equal to alcohol burners. A hot plate or these suggested gas burners are safer than alcohol burners.
CAS No. 107-15-3
Ethylenediaminetetraacetic Acid
Ethyl 4-Aminobenzoate
Procaine, Benzocaine
reagent grade, 98%, crystalline 4-H2NC6H4CO2CH2CH3
F.W. 165.19
E0060 25 g
$13.85
Storage: Organic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water; insoluble in most common organic solvents. Color and Odor: White, odorless solid.
CAS No. 6381-92-6
Technical Note: The disodium salt is most convenient for the preparation of solutions for hard water analysis and is the most commonly used reagent. A 0.01 M disodium EDTA solution works well in this regard.
EDTA Solution
Storage: Organic #1
Disposal: #26b
Shelf Life: Indefinite
Soluble: Aqueous solution; immiscible with nonpolar organic solvents.
Color and Odor: Colorless, odorless liquid.
Technical Note: Commonly used for hard water analysis and water softening experiments.
 HAZARD ALERT: May cause eye and skin irritation; not for human consumption. LD50 3042 mg/kg.
Storage: Organic #3
Disposal: #18b
Shelf Life: Good, if stored safely.
Soluble: Alcohol, ether, and dilute acids; insoluble in water. Color and Odor: White crystalline solid; odorless.
CAS No. 94-09-7
Ethylene Glycol Dimethyl Ether
$33.85
ETHYLENEDIAMINE continued
Shelf Life: Potentially poor, absorbs carbon dioxide from air, keep tightly closed and stored in a Flinn Chem-Saf TM Bag.
Soluble: Water and alcohol; slightly in ether.
Color and Odor: Colorless liquid with ammonia odor.
EDTA
reagent, powder C10H16N2O8 F.W. 292.25
E0017 100 g
$16.80
 HAZARD ALERT: Toxic by ingestion. Storage: Organic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Slightly in water; insoluble in most common organic solvents.
Color and Odor: White, odorless solid.
CAS No. 60-00-4
Ethylenediaminetetraacetic Acid, Disodium Salt
EDTA, disodium salt, dihydrate reagent, powder C10H14N2Na2O8•2H2O
F.W. 372.25
E0019 100 g
$14.65
0.1 Molar
E0059
500 mL
$6.05
contains EDTA, disodium salt
see 1,2-Dimethoxyethane
Ethylenediamine
reagent H2NCH2CH2NH2 F.W. 60.10
E0040 100 mL E0038 500 mL
$23.85 71.60
HAZARD ALERT: Flammable; strong irritant to skin and eyes; toxic by ingestion, inhalation, and skin absorption. Substance caustic and corrosive. Fumes at temperatures slightly above room temperature. Vapor irritating. LD50 1200 mg/kg. TLV 25 mg/m3.
Storage: Organic #2 in a dedicated flammables cabinet; if one is not available then store in a Flinn Saf-Stor TM Can.
Disposal: #26b
Continued on next column.
Ethylene Dichloride
1,2-dichloroethane laboratory grade C2H4Cl2
F.W. 98.97
E0015 500 mL
$16.70
HAZARD ALERT: Flammable liquid, dangerous fire risk. Moderately toxic by ingestion, inhalation and skin absorption; strong skin and eye irritant. LD50 670 mg/kg. TLV 40 mg/m3. Storage: Organic #4 in a Flinn Chem-Saf TM Bag, then inside a dedicated flammables cabinet. If one is not available then store in a Flinn Saf-StorTM Can.
Disposal: #27j. U-Listed (U077); purchase small amounts for effec- tive inventory control.
Shelf Life: Gradually decomposed by air, light, and moisture form- ing hydrochloric acid.
Soluble: Slightly in water; miscible with most organic solvents. Color and Odor: Colorless liquid with a chloroform odor. CAS No. 107-06-2
What Does “Denatured” Mean
When Describing Ethyl Alcohol?
A denaturant is added to ethyl alcohol to make it unfit for use as a beverage. Frequently, the denaturant added is methyl alcohol (wood alcohol), which is very toxic. Denatured alcohol is not subject to federal alcohol taxes for beverages. There are many formulations of denatured alcohol, but the goal is always the same—to make ethyl alcohol unfit for use as a beverage.