34 1-800-452-1261
Benzaldehyde
laboratory grade
C6H5CHO
F.W. 106.13
B0017 100 mL $25.59
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™ 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.
Benzene
reagent
C6H6
F.W. 78.11
B0018 500 mL $45.69
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; moderately 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 ™ Bag and then inside a Flinn
Saf-Stor™ Can. If packaged in glass, the container must be protected against
possible breakage.
Disposal: #18b. U-Listed (U019); purchase small amounts for effective 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.
Benzin
see Petroleum Ether
Benzoic Acid
laboratory grade, flake
C6H5COOH
F.W. 122.12
B0197 100 g $13.71
B0020 500 g 19.03
HAZARD ALERT: Slightly toxic by ingestion; body tissue irritant; combustible.
LD50 1700 mg/kg.
Storage: Organic #1
Disposal: #24a
Shelf Life: Indefinite
Soluble: Alcohol, ether, chloroform, carbon disulfide, and carbon tetrachloride.
Only slightly soluble in water.
Color and Odor: White solid with maple syrup odor.
CAS No. 65-85-0
Benzyl Alcohol
C6H5CH2OH
F.W. 108.14
B0132 100 mL $17.36
HAZARD ALERT: Reacts violently with strong oxidants; body tissue
irritant; slightly toxic by ingestion and inhalation; combustible; may form
explosive peroxides on concentration. LD50 1230 mg/kg.
Storage: Organic #2 inside a Flinn Chem-Saf ™ Can.
Disposal: #18b
Shelf Life: Good if stored safely and away from oxidants.
Soluble: Miscible with alcohol, ether and chloroform; slightly soluble in
water.
Color and Odor: Colorless liquid with slight floral odor.
CAS No. 100-51-6
BHT
see 2,6-Di-t-Butyl-4-Methylphenol
Bial’s Reagent
Test for pentoses
see page 715 for preparation
Bile Salts
sodium salts of glycocholic and taurocholic acids
powder B0038 100 g $32.52
Storage: Organic #1
Disposal: #26a
Shelf Life: Good, but only if kept dry.
Soluble: Water and alcohol.
Color and Odor: Yellow/brown solid with putrid beef odor.
Biotechnology Chemicals
see page 511
Bismuth
Bi
A.W. 208.98
Lump B0048 100 g $30.10
Granular B0142 100 g $96.80
HAZARD ALERT: Flammable in finely divided form such as dust. Slightly
toxic by inhalation or ingestion. LD50 5000 mg/kg.
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Nitric and hydrochloric acid.
Color and Odor: Metallic silver, odorless solid.
CAS No. 7440-69-9
Biuret Test Solution
Solution changes color from blue to purple in the
presence of protein.
Contains: copper sulfate and 30% w/v aqueous
sodium hydroxide.
B0050 100 mL $ 5.05
B0051 500 mL 8.12
B0230 1000 mL 14.62
HAZARD ALERT: Corrosive liquid; especially dangerous to eyes.
Storage: Inorganic #4
Disposal: #10
Shelf Life: Good
Color and Odor: Royal blue, odorless liquid.
Biuret Quantitative Assay Solution
Assay solution for quantitative analysis of proteins.
Contains: copper(II) sulfate, potassium iodide
and potassium sodium tartrate in 0.2 M NaOH
B0237 500 mL $9.87
HAZARD ALERT: Irritating to skin and eyes.
Storage: Inorganic #4
Eliminate Mystery Substances
at Their Source
Become a label fanatic! Eliminate future mystery sub stances by labeling all
chemical solutions and preparations when they are made. Today’s unlabeled
bottle is tomorrow’s mystery substance. See the Safety Reference section
for chemical bottle labels, shelf storage labels and GHS pictogram stickers.
BIURET QUANTITATIVE ASSAY SOLUTION continued on next page.
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