flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 59
DPIP
see Dichloroindophenol
Drierite®
calcium sulfate, anhydrous
moisture absorbent, 8 mesh
Non-indicating D0011 454 g $22.55
white
Indicating D0012 454 g $38.05
blue, changes to
pink when saturated
HAZARD ALERT: Possible allergen. Respiratory irritant.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Indefinite if kept dry; store in a Flinn Chem-Saf ™ Bag.
Soluble: Not meant to be put in solution.
Color and Odor: White or blue, odorless solid.
CAS No. 7778-18-9
Dyes
see Food Coloring Dyes
E
EBT
see Eriochrome Black T
EDTA
see Ethylenediaminetetraacetic Acid
Electrophoresis Chemicals
see page 530
EMB Agar
eosin methylene blue
bacteriological culture media
powder E0021 100 g $55.95
Storage: With other culture media.
Disposal: #26a
Shelf Life: Very hygroscopic; keep dry; shelf life good if kept dry. Store in a
Flinn Chem-Saf ™ Bag.
Soluble: Water
Color and Odor: Pink/violet solid with malt odor.
Enviro-Bond™ 403
oil absorbing material
E0058 100 g $11.80
Storage: Miscellaneous nonhazardous organic material.
Disposal: #26a
Shelf Life: Indefinite
Soluble: Insoluble
Color and Odor: White, odorless solid.
Technical Note: Use with Marvel Mystery Oil (AP8927) to simulate an oil
spill cleanup; please see page 332.
Epsom Salts
see Magnesium Sulfate
2,4-Dichlorophenoxyacetic Acid
2,4-D; an auxin
C8H6Cl2O3 D0056 100 g $72.40
HAZARD ALERT: Toxic by ingestion; severe eye irritant. LD50 375 mg/kg
Storage: Organic #1
Disposal: #4c
Shelf Life: Indefinite
Soluble: Slightly soluble in water, soluble in alcohol.
Color and Odor: Buff/tan, odorless solid.
CAS No. 94-75-7
Technical Note: Use a 0.01–5.0 mg/L solution as a plant growth regulator.
2,4-Dinitrophenylhydrazine
2,4-DNPH
stabilized with 30–35% water
2,4-(NO2)2C6H4NHNH2
F.W. 198.14
D0061 100 g $159.00
HAZARD ALERT: Flammable; toxic by ingestion. LD50 >500 mg/kg.
Storage: Organic #2
Disposal: #5
Shelf Life: Good, if stored safely.
Soluble: Slightly soluble in water and alcohol; soluble in dilute inorganic
acids.
Color and Odor: Moist, reddish-orange solid; odorless.
CAS No. 119-26-6
Technical Note: Contains 30–35% water as a stabilizer. Dry solid is shocksensitive.
Used to test for and identify carbonyl compounds.
Disinfectant
see Lysol®
Distilled Water
see Water, Distilled
DNA
see Deoxyribonucleic Acid
Dodecanoic Acid
see Lauric Acid
Dodecyl Alcohol
lauryl alcohol, 1-dodecanol
laboratory grade, crystal
CH3(CH2)11OH
F.W. 186.34
D0035 100 g $29.20
Storage: Organic #2
Disposal: #18b
Shelf Life: Indefinite
Soluble: Alcohol
Color and Odor: White solid with floral odor.
CAS No. 112-53-8
Technical Note: Melting point is 24 °C; material may be a liquid or fused
solid.
Dodecyl Sulfate, Sodium Salt
sodium lauryl sulfate, sodium dodecyl sulfate, SDS
laboratory grade, powder
CH3(CH2)11OSO3Na
F.W. 288.38
D0024 100 g $18.70
HAZARD ALERT: Harmful if swallowed. Causes skin and serious eye
irritation. May cause respiratory irritation. LD50 1288 mg/kg.
Storage: Inorganic #2 or Organic #4.
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: White, odorless solid.
CAS No. 151-21-3
Technical Note: Suitable for electrophoresis as an anionic detergent to
denature proteins.
Mystery Substances
Virtually every teacher will encounter an “unknown” on his or her shelf at
some point. The answer to the question “What is it?” may be found in the
“Flinn Mystery Substance Identification Procedure.” For your free copy find
it on flinnsci.com
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