Page 22 - Demo

Chemicals
Beeswax
granulated beads, laboratory grade
White Yellow
1-800-452-1261
20
flinnsci.com
Storage: Organic #3
Disposal: #26a
Shelf Life: Indefinite
Soluble: Most organic solvents; not water. Color and Odor: White/yellow, odorless solid. CAS No. 8012-89-3
Technical Note: White beeswax is bleached and yellow is natural.
Benedict’s Qualitative Reagent Powder
contains: sodium citrate, sodium carbonate,
100 mL 500 mL
$ 7.80 12.45
$13.75 22.90
and copper(II) sulfate
B0049* pkg.
$12.75
 HAZARD ALERT: Moderately toxic; skin and eye irritant. Storage: Inorganic #2
Disposal: #26a
Shelf Life: Excellent
Soluble: Water
Color and Odor: White, odorless solid. *Sufficient to make 1 liter with distilled water.
Benedict’s Qualitative Solution
for analysis of reducing sugars
contains: sodium citrate, sodium carbonate,
 HAZARD ALERT: Moderately toxic; skin and eye irritant. Storage: Inorganic #2
Disposal: #26b
Shelf Life: Indefinite
B0013 B0014
500 g 500 g
$30.60 $33.65
BENEDICT’S QUALITATIVE SOLUTION continued Shelf Life: Indefinite
Color and Odor: Light blue, odorless liquid.
Benedict’s Quantitative Solution
for quantitative sugar determinations contains: sodium citrate, sodium carbonate, copper(II) sulfate, potassium thiocyanate, and potassium ferrocyanide
B0195 B0062
Color and Odor: Light blue, odorless liquid.
Benzaldehyde
laboratory grade C6H5CHO
F.W. 106.13
B0196 B0017
25 mL 100 mL
and copper(II) sulfate
Benzene
reagent C6H6
F.W. 78.11
B0129 100 mL B0018 500 mL
$16.35 42.50
 HAZARD ALERT: Skin and eye irritant. Storage: Inorganic #2
Disposal: #26b
Continued on next column.
B0171 B0015 B0016 B0172
100 mL 500 mL 1 liter
4 liters
$ 4.50 5.25 8.85 26.20
 HAZARD ALERT: Known carcinogen; strict observance of safety precautions must be practiced, i.e., use a hood, wear gloves, use eye or face protection. Flammable; dangerous fire risk; moder- ately toxic by ingestion, inhalation, and skin absorption. Possible reproductive/fertility hazard. LD50 930 mg/kg. TLV 0.5 ppm TWA. Storage: Organic #3 in a Flinn Chem-Saf TM Bag and then inside a Flinn Saf-StorTM Can. If packaged in glass, the container must be protected against possible breakage.
Disposal: #18b. U-Listed (U019); purchase small amounts for effec- tive inventory control.
Shelf Life: Good if stored safely.
Soluble: Miscible with alcohol, ether, acetone, carbon tetrachloride, carbon disulfide, and acetic acid. Slightly soluble in water.
Color and Odor: Colorless liquid with gasolinelike odor.
CAS No. 71-43-2
Incompatibility: Dangerous in contact with chlorine or oxidizing agents.
Technical Note: Avoid buying and storing this known carcinogen unless you employ strict hygiene practices. Consider substituting cyclohexane, toluene, or xylenes.
Benedict’s Qualitative Solution B0015
HAZARD ALERT: Reacts with strong oxidizers; slightly toxic by inhalation or ingestion; irritating vapor; combustible. LD50 1300 mg/kg.
Storage: Organic #3
Disposal: #2
Shelf Life: Fair; oxidizes to benzoic acid; yellows on prolonged storage; protect from light; keep tightly closed in a Flinn Chem- Saf TM Bag.
Soluble: Miscible with alcohol, ether, and some volatile oils; slightly soluble in water.
Color and Odor: Colorless liquid with almond odor.
CAS No. 100-52-7
Incompatibility: Potassium permanganate, sodium peroxide, and other oxidizing agents.
Shelf Life: Indefinite
Please call or email us today to request a free copy of Flinn Scientific
Color and Odor: Light blue, odorless liquid.
Publication No. 10181, which describes the principles and use of
Benedict’s solution to analyze reducing sugars.
Shelf Life of Chemicals
The safe shelf life of chemicals varies from product to product. Some, like potassium metal and ether, can become potentially more dangerous. Others may become less chemically active. If you sometimes wonder why an experiment did not work, the chemical could be the problem. Review the shelf life infor- mation provided in this Catalog/Reference Manual. Purchase particularly hazardous chemicals in small quantities so that they are completely used up in a short time—preferably in less than a year.
See free video about chemical shelf life at flinnsci.com.