70 1-800-452-1261
Mounting Medium continued 1-Naphthol continued
Storage: Organic #4
Disposal: #18b
Shelf Life: Indefinite
Soluble: Insoluble in water, soluble in toluene.
Color and Odor: Colorless liquid with slight toluene odor.
Technical Note: Low viscosity mounting media is an acrylic resin and will
not crack or discolor with age. It is quick-drying and soluble in toluene and
xylenes. Low viscosity media is suggested for use with cover glass.
*Special package containing a twist-open dropper cap.
Mueller-Hinton Agar
bacteriological culture media
M0203 100 g $42.17
Storage: With culture media.
Disposal: #26a
Shelf Life: Good, if kept dry.
Soluble: Water
Color and Odor: Tan or off-white, odorless solid.
Muriatic Acid
see Hydrochloric Acid
N
Nails
see Iron, Nails
Naphthalene
flake
C10H8
F.W. 128.17
N0001 500 g $13.94
HAZARD ALERT: Possible carcinogen. Moderately toxic by ingestion,
inhalation, and skin contact; moderate fire hazard. LD50 490 mg/kg. TLV 52
mg/m3.
Storage: Organic #3
Disposal: #18b. U-Listed (U165); purchase small amounts for effective inventory
control.
Shelf Life: Volatile flakes; keep tightly closed.
Soluble: Alcohol and ether; not water.
Color and Odor: Shiny white solid with moth ball odor.
CAS No. 91-20-3
Technical Note: When used to show states of matter by heating in a test
tube, quantity should be small and heating gentle so that minimum vapor is
generated. Use under a hood or in a well-ventilated room.
Safety Purchase Note: Safer alternative substances for melting point
determination are cetyl alcohol, 1-octadecanol, palmitic acid, stearic acid,
lauric acid or 4-(t-octyl) phenol.
1-Naphthol
-naphthol
laboratory grade, powder
C10H8O
F.W. 144.17
N0033 25 g $27.36
HAZARD ALERT: Slightly toxic by ingestion, inhalation and skin absorption;
severe body tissue irritant. LD50 1870 mg/kg.
Storage: Organic #8
Disposal: #18b
Shelf Life: Indefinite; darkens on exposure to light; protect from light.
Soluble: Alcohol, ether, and benzene; slightly in water.
Color and Odor: Yellow/brown solid with slight phenol odor.
CAS No. 90-15-3
Nichrome, Wire
bare
16 gauge (134 ft/lb) N0040 4 oz. $20.53
18 gauge (218 ft/lb) N0041 4 oz. 20.90
22 gauge (545 ft/lb) N0042 4 oz. 24.30
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Indefinite
Color and Odor: Silver, odorless solid.
Nickel
reagent grade, shot
Ni
A.W. 58.69
N0004 100 g $ 23.65
N0005 500 g 100.46
HAZARD ALERT: Possible carcinogen.
Storage: Inorganic #1
Disposal: #27a
Shelf Life: Indefinite
Soluble: Resists solution.
Color and Odor: Silver, odorless solid.
CAS No. 7440-02-0
Nickel, Strips
see page 144
Nickel Chloride
nickel(II) chloride
reagent grade, crystal
NiCl2•6H2O
F.W. 237.72
N0069 50 g $ 10.70
N0007 100 g 22.25
HAZARD ALERT: Nickel compounds are known carcinogens by inhalation
of dust. Highly toxic by ingestion and inhalation; avoid dispersing this
substance; dispense with care. Avoid dispersing, breathing, or inhaling nickel
dust. Possible reproductive/fertility hazard. LD50 105 mg/kg.
Storage: Inorganic #2 in a locked poisons cabinet.
Disposal: #27f
Shelf Life: Deliquescent; store in a Flinn Chem-Saf ™ Bag.
Soluble: Water, alcohol, and ammonium hydroxide.
Color and Odor: Green, odorless solid.
CAS No. 7791-20-0
Nickel Nitrate
nickel(II) nitrate
crystal
Ni(NO3)2•6H2O
F.W. 290.82
Laboratory grade N0090 100 g $14.78
N0091 500 g 36.01
HAZARD ALERT: Nickel compounds are known carcinogens. Slightly
toxic; avoid dispersing this sub stance; dispense with care; strong oxidant.
Avoid dispersing, breathing, or inhaling nickel dust. Possible reproductive/
fertility hazard. LD50 1620 mg/kg.
Storage: Inorganic #3
Disposal: #27f
Shelf Life: Deliquescent; store in a Flinn Chem-Saf ™ Bag.
Soluble: Water, alcohol and ammonium hydroxide.
Color and Odor: Aqua, odorless solid.
CAS No. 13478-00-7
Continued on next column.
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