Page 58 - Demo

Chemicals
Hydrochloric Acid Solution
6 Molar
3 Molar 1 Molar
0.5 Molar 0.25 Molar 0.15 Molar 0.1 Molar
1-800-452-1261
56
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(100 liters)
 HAZARD ALERT: Highly flammable gas; severe fire hazard.
Storage: In an area dedicated to bottled gases and away from any source of heat or flame.
Disposal: Completely empty lecture bottle in a good operating fume hood, then follow #26a.
Hydroquinone Dimethyl Ether
see 1,4-Dimethoxybenzene
Hydroxylamine Hydrochloride
laboratory grade, crystal H2NOH•HCl
F.W. 69.50
Shelf Life: Indefinite if stored safely.
Soluble: Slightly in water, alcohol, and ether. Color and Odor: Colorless, odorless.
CAS No. 1333-74-0
H0052 H0019
50 g 100 g
$10.75 16.55
Hydrogen Peroxide
H2O2
F.W. 34.02
30% Reagent (stabilized)
6%
laboratory grade 3%
laboratory grade
H0037 100 mL H0008 500 mL
H0028 500 mL
H0029 3.8 liters
H0009 473 mL H0038 3.8 liters
$11.40 27.00
$ 8.70 25.40
$ 5.00 18.40
 HAZARD ALERT: Highly toxic by ingestion; strong tissue irritant. LD50 141 mg/kg. Incompatible with sodium hydroxide and other strong bases; reacts to form hydroxylamine, which may explode when heated.
Storage: Organic #2
Disposal: #26a
Shelf Life: Slowly decomposes when moist. Keep cool and dry. Soluble: Water; glycerol, and alcohol; insoluble in ether.
Color and Odor: White, odorless solid.
CAS No. 5470-11-1
 HAZARD ALERT: 30% hydrogen peroxide requires special storage and handling procedures. It is a very strong oxidizing agent and severly corrosive to skin, eyes and respiratory tract. Many common substances, including iron and other transition metals, will catalyze the decomposition to produce copious amounts of oxygen gas and heat. The 30% solution is a dangerous fire and explosion risk—do not heat. Wear appropriate protective clothing. TLV 1.4 mg/m3. Dilute 3% and 6% hydrogen peroxide solutions are weak oxidizers and skin and eye irritants.
Storage: Inorganic #6. We frequently find 30% hydrogen peroxide stored in laboratory refrigerators. We do not recommend storing any laboratory chemicals in household-type refrigerators. Disposal: #22a
Continued on next column.
Hydroxy Naphthol Blue
indicator, disodium salt reagent grade
H0055
5 g
$15.95
H0033 500 mL H0056 1L
H0034 500 mL H0013 500 mL
H0057 1L H0035 500 mL H0041 500 mL H0036 500 mL H0014 500 mL
$ 8.65 13.85
7.80
6.15 10.40
7.40 7.35 6.90 6.40
HYDROGEN PEROXIDE continued
Shelf Life: Fair to poor; when stored at room temperature, the
LB1070 3.6 cu. ft.
substance decomposes at approximately 0.5% per year. Soluble: Water and alcohol.
Color and Odor: Colorless, odorless liquid.
CAS No. 7722-84-1
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Hydroquinone
laboratory grade, crystal 1,4-C6H4(OH)2
F.W. 110.11
H0011 100 g
$16.35
 HAZARD ALERT: Toxic by ingestion or inhalation; severely corro- sive to skin and eyes.
Storage: Inorganic #9 in a dedicated acid cabinet.
Disposal: #24b
Shelf Life: Good
Color and Odor: Colorless liquid with slight hydrochloric acid odor.
HAZARD ALERT: Corrosive to skin, eyes, and respiratory tract; toxic by ingestion and inhalation. LD50 302 mg/kg. TLV 2 mg/m3.
Storage: Organic #8
Disposal: #18b
Shelf Life: Poor; keep tightly closed and protected from light. When in solution, it will turn brown as a result of oxidation. Oxidation is very rapid in the presence of alkali.
Soluble: Water, alcohol, and ether.
Color and Odor: Gray/white, odorless solid.
CAS No. 123-31-9
Hydrogen Gas
Lecture bottle Refillable cylinder
LB1015 2 cu. ft. (56 liters)
$265.05 374.45
 HAZARD ALERT: Body tissue irritant. Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water
Color and Odor: Dark blue, odorless solid.
CAS No. 165660-27-5
Technical Note: Used as an indicator for Ca2+ ions in the EDTA titration of milk.
Immersion Oil
R.I. 1.515, PCB free
Low viscosity
150 CS
High viscosity
1250 CS
Storage: Organic #3
I0051 I0052
I0053 I0054
0.5 oz 1 oz
0.5 oz 1 oz
$11.55 18.00
$12.65 16.45
I
Dyes
Dyes are organic compounds that can be used to impart bright, permanent colors to fabrics. The affinity of a dye for a fabric depends on the chemical structure of the dye and fabric molecules and on the interactions between them. The art of dyeing dates back thousands of years to the use of natural dyes extracted from plants and animals. The modern dye industry started 150 years ago with the discovery of “mauve,” the first synthetic dye. Since then, thou- sands of dyes have been developed to work with all types of fabrics.
Disposal: #18b
Shelf Life: Indefinite
Soluble: Insoluble in water.
Color and Odor: Colorless or slightly pale yellow, odorless oil.
IMMERSION OIL continued on next page.