Page 76 - Demo

74
Chemicals
1-800-452-1261
flinnsci.com
Mueller-Hinton Agar
bacteriological culture media
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-1-Naphthylethylenediamine Dihydrochloride
 HAZARD ALERT: Possible carcinogen. Moderately toxic by inges- tion, 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 effec- tive 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 mini- mum 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.
bare
16 gauge (134 ft/lb)
18 gauge (218 ft/lb)
22 gauge (545 ft/lb)
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Indefinite
Color and Odor: Silver, odorless solid.
Nickel
reagent grade, shot
Ni N0068
A.W. 58.69 N0004 N0005
 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
$18.30 19.25 21.65
$16.15 22.00 90.75
 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
Nickel, Strips
see page 480
Nickel Chloride
nickel(II) chloride reagent grade, crystal NiCl2•6H2O
F.W. 237.72
M0203 100 g
$38.80
N-NED
for detection of nitrogen dioxide in air or quantitative reagent for sulfa drugs
C12H14N2•2HCl N0044 5 g F.W. 259.17
 HAZARD ALERT: Body tissue irritant. Storage: Organic #2
Disposal: #26a
Shelf Life: Poor; hygroscopic.
Soluble: Hot water, alcohol, and dilute hydrochloric acid. Color and Odor: White, odorless solid.
CAS No. 1465-25-4
N0040 N0041 N0042
4 oz. 4 oz. 4 oz.
50 g 100 g 500 g
$44.20
Nails
see Iron, Nails
Naphthalene
flake
C10H8
F.W. 128.17
5g
$16.70
N
Neutral Red
basic red 5
biological stain/indicator
pH 6.8 red to 8.0 yellow
C15H17ClN4 N0057 F.W. 288.78
Storage: Organic #9
Disposal: #26a
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Gray, odorless solid.
CAS No. 553-24-2
C.I. #50040
Newton’s Metal
see Onion’s Fusible Alloy
Nichrome, Wire
N0065 250 g
N0001 500 g
N0002 2 kg
$ 9.40 12.80 32.85
1-Naphthol
α-naphthol
laboratory grade, powder
C10H8O F.W. 144.17
N0033
25 g
$24.35
Nickel and Nickel Compounds—
Carcinogens as Dust or Fumes
Nickel is classified as a possible carcinogen, and nickel compounds are classified as known carcinogens by IARC (International Agency for Research on Cancer). The danger is breathing or inhaling solid dust from these substances. Practice strict hygiene—avoid dispersing dust or fumes. Work with solu- tions whenever possible to avoid this hazard.
 HAZARD ALERT: Nickel compounds are known carcinogens by inhalation of dust. Highly toxic by ingestion and inhalation; avoid
N0069 N0007 N0008
50 g 100 g 500 g
$ 9.95 19.15 87.45
NICKEL CHLORIDE continued on next page.