Page 45 - Demo

“Your Safer Source for Science”
Dextrin
white, corn powder
Save On HazMat Fees
43
Storage: Organic #2
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf TM Bag. Soluble: Boiling water; not alcohol or ether.
Color and Odor: White, odorless solid.
CAS No. 9004-53-9
 HAZARD ALERT: Moderately toxic by ingestion and inhalation. Body tissue irritant. LD50 890 mg/kg.
Storage: Organic #8
Disposal: #24a
Shelf Life: Good; reacts with oxygen; limit exposure to air. Soluble: Alcohol, xylenes, and acetone.
Color and Odor: White, odorless solid.
CAS No. 128-37-0
Technical Note: A safer alternative for melting point determination: melting point is 69–71 °C.
Dibutyl Phthalate
see Butyl Phthalate
para-Dibromobenzene
1,4-Dibromobenzene reagent
C6H4Br2
F.W. 235.90
Dextrose
glucose, anhydrous reagent, granular
C6H12O6 F.W. 180.16
D0002 D0015
500 g 2 kg
$ 9.70 27.90
Storage: Organic #2
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf TM Bag. Soluble: Water; slightly in alcohol.
Color and Odor: White, odorless solid.
CAS No. 492-62-6
Dextrose
glucose, monohydrate laboratory grade, powder C6H12O6 • H2O
F.W. 198.18
$104.05
Storage: Organic #2
Disposal: #26a
Shelf Life: Good if kept dry; store in a Flinn Chem-Saf TM Bag. Soluble: Water; slightly in alcohol.
Color and Odor: White, odorless solid.
CAS No. 5996-10-1
Dextrose Solutions
see Glucose Solutions
Diastase of Malt
a mixture containing amylase enzymes and sugars D0006 100 g
para-Dichlorobenzene
1,4-dichlorobenzene laboratory grade, crystal C6H4Cl2
F.W. 147.01
D0007 D0008
500 g 2 kg
$13.50 42.65
D0001
500 g
$13.15
2,6-Di-t-Butyl-4-Methylphenol
BHT, butylated hydroxytoluene laboratory grade, crystals ((CH3)3C)2CH3C6H2OH
F.W. 220.36
D0057 100 g D0058 500 g
$13.60 29.45
D0005 500 g
$9.60
tion. May cause respiratory irritation. Storage: Organic #4
Disposal: #4b.
Shelf Life: Good
Soluble: Soluble in ethanol and benzene; very soluble in diethyl ether, acetone, and carbon disulfide.
Color and Odor: Light yellow plates, odorless solid.
CAS No. 106-37-6
D0014 500 g
 HAZARD ALERT: Causes skin irritation. Causes serious eye irrita-
Storage: With culture media.
Disposal: #26a
Shelf Life: Poor unless kept dry; store in a Flinn Chem-Saf TM Bag. Best stored under dry conditions in a refrigerator.
Soluble: Water; virtually insoluble in alcohol.
Color and Odor: Off-white solid with gingerbread odor.
CAS No. 9000-92-4
Technical Note: Diastase of malt digests (hydrolyzes) starch to malt sugar and contains some sugar. For quantitative digestive experi- ments, use amylase.
Diatomaceous Earth
filter aid
celite, infusorial earth
laboratory grade
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Good if kept dry; absorbs 2–4 times its weight in water; store in a Flinn Chem-Saf TM Bag.
Soluble: Not in most common acids; soluble in strong alkalis.
Color and Odor: Off-white solid with slightly spicy odor.
CAS No. 68855-54-9
D0017 500 g D0018 2 kg
$16.05 48.95
$22.50
M.P. 53 °C
 HAZARD ALERT: Possible carcinogen. Severe irritant to eyes, skin,
and respiratory tract. Moderately toxic by ingestion. LD50 500 mg/ kg. The threshold limit value (TLV) for this substance is 60 mg/m3 in air. Provide a high degree of ventilation.
Storage: Organic #4
Disposal: #4b. U-Listed (U072); purchase small amounts for effec- tive inventory control.
Shelf Life: Fair to poor; substance volatile; store in a Flinn Chem- Saf TM Bag.
Soluble: Insoluble in water; soluble in many organic solvents. Color and Odor: White solid with moth ball odor.
CAS No. 106-46-7
Safety Purchase Suggestion: Cetyl alcohol, stearic acid, and t-octyl phenol are safer alternatives for melting point determinations. A safer alternative for enthalpy of fusion experiments might be acet- amide. Acetamide is now available already melted in a Pyrex® test tube. This ready-to-use package is reusable and will save time (see page “Acetamide” on page 339).
2,6-Dichloroindophenol, Sodium Salt
2,6-dichlorophenol indophenol DPIP, DCIP or DCPIP reagent, powder NaOC6H4N=C6H2(Cl2):O
F.W. 290.09
D0009 1 g D0026 5 g
$10.85 33.50
2,6-DICHLOROINDOPHENOL, SODIUM SALT continued on next page.