Page 24 - Demo

Chemicals
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BHT
see 2,6-Di-t-Butyl-4-Methylphenol on page 318
Bial’s Reagent
Test for pentoses
see page 710 for preparation
Bile Salts
sodium salts of glycocholic and taurocholic acids
Bismuth Trichloride
bismuth(III) chloride laboratory grade, large crystal BiCl3
F.W. 315.34
flinnsci.com
powder
B0133 B0038
25 g 100 g
$12.00 28.95
$6.65
 HAZARD ALERT: Corrosive dust, avoid inhalation; slightly toxic. LD50 3334 mg/kg.
Storage: Inorganic #2
Disposal: #26a
Shelf Life: Poor—deliquescent. Store in a Flinn Chem-Saf TM Bag. Soluble: Acids; not alcohol; decomposes in water.
Color and Odor: White, odorless solid.
CAS No. 7787-60-2
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.
Biuret
reagent that gives a positive result with biuret test solution laboratory grade, powder NH2CONHCONH2
Bile Salts Solution
5%, aqueous
Storage: Organic #1
Disposal: #26b
Shelf Life: Fair
Color and Odor: Yellow/brown, odorless liquid.
Biotechnology Chemicals
see pages 139–140
Bismuth
Bi
A.W. 208.98
Lump B0048 Granular B0142
B0135 50 g
$25.60
 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
B0050 B0051 B0230
100 mL
500 mL 1000 mL
$ 4.70 7.55 13.60
Shelf Life: Indefinite
Soluble: Nitric and hydrochloric acid.
Color and Odor: Metallic silver, odorless solid. CAS No. 7440-69-9
 HAZARD ALERT: Corrosive liquid; especially dangerous to eyes. Storage: Inorganic #4
Disposal: #10
Shelf Life: Good
Bismuth Nitrate
laboratory grade, crystal Bi(NO3)3•5H2O
F.W. 485.10
B0022
25 g
$25.90
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
 HAZARD ALERT: Oxidizer; fire risk in contact with organic mate- rial; slightly toxic. LD50 4042 mg/kg.
Storage: Inorganic #3
Disposal: #26a
Shelf Life: Fair to poor—hygroscopic. Store in a Flinn Chem-Saf TM Bag.
Soluble: Dilute nitric acid, alcohol, and acetone; slowly decom- posed by water.
Color and Odor: White solid with stinging, acidlike odor. CAS No. 10035-06-0
B0237
 HAZARD ALERT: Irritating to skin and eyes. Storage: Inorganic #4
Disposal: #10
Shelf Life: Fair
500 mL
100 g
$9.00
$44.00
B0160
100 mL
F.W. 103.09
 HAZARD ALERT: Skin, eye, and respiratory irritant.
100 g 100 g
$26.80 $88.30
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.
Storage: Organic #2
Disposal: #18b
Shelf Life: Hygroscopic solid; store in a Flinn Chem-Saf TM Bag inside a Flinn Saf-StorTM Can.
Soluble: Water and alcohol.
Color and Odor: White solid with a vomit odor.
CAS No. 108-19-0
Technical Note: Biuret is not used to prepare biuret solution. It is used as a reference to show a positive result with biuret test solu- tion. See the following listing for biuret test solution.
B0023
25 g
$54.95
Color and Odor: Blue, odorless liquid.
Blood Agar Base Infusion
fine powder culture media
Storage: Miscellaneous organic. Disposal: #26a
Shelf Life: Fair to poor. Keep dry. Soluble: Water
B0191
Chemicals and Safety Realism
The nation is being swept by CHEMOPHOBIA—the fear of chemicals. Such fears have led to the banning of many chemi- cals, including such common substances as ammonium nitrate. Ammonium nitrate is probably the most widely used fertilizer in the world. Help educate our future leaders about the benefits of the proper use of chemicals. Let’s be realistic, not fearful.
Color and Odor: White/buff solid with putrid beef odor. Technical Note: This product contains no blood.