flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 71
Nickel Sulfate
nickel(II) sulfate
crystal
NiSO4•6H2O
F.W. 262.87
Reagent N0011 100 g $18.33
Laboratory grade N0013 500 g $44.45
HAZARD ALERT: Nickel compounds are known carcinogens by inhalation
of dust. Moderately toxic by ingestion and inhalation; severe body tissue
irritant; avoid dispersing this substance; dispense with care. Avoid dispersing,
breathing, or inhaling nickel dust.
Storage: Inorganic #2
Disposal: #27f
Shelf Life: Indefinite
Soluble: Water and alcohol.
Color and Odor: Light green, odorless solid.
CAS No. 10101-97-0
Nicotine
laboratory grade
C10H14N2 N0058 10 g $64.27
F.W. 162.24
HAZARD ALERT: Suspected teratogen. Highly toxic by ingestion, inhalation
and skin absorption. LD50 50 mg/kg. TLV 0.5 mg/m3.
Storage: Organic #2 in a Flinn Chem-Saf ™ Bag in a locked poisons cabinet.
Disposal: #5. P-Listed (P075); purchase small amounts for effective inventory
control.
Shelf Life: Poor; substance deliquescent.
Soluble: Water and many common organic solvents.
Color and Odor: Amber solid with strong odor of old smoked cigarettes.
CAS No. 54-11-5
Ninhydrin
1, 2, 3-indantrione monohydrate
used in test for amino acids and proteins
laboratory grade, crystal
C6H4-1,2-(CO)2CO•H2O
F.W. 195.15
N0015 10 g $17.63
HAZARD ALERT: Body tissue irritant.
Storage: Organic #2
Disposal: #18b
Shelf Life: Indefinite, but light sensitive. Store in a Flinn Chem-Saf ™ Bag.
Soluble: Alcohol and water.
Color and Odor: White solid with fresh paint odor.
CAS No. 485-47-2
Technical Note: Use a 0.5% solution of ninhydrin in ethyl, isopropyl or butyl
alcohol to test for proteins and amino acids.
Ninhydrin Solution
0.5% in butyl alcohol
reagent
N0023 500 mL $20.96
HAZARD ALERT: Review the detailed hazard data provided for nin hydrin.
The solution contains butanol, which is a flammable liquid. Severe body tissue
irritant.
Storage: Organic #2 in a dedicated flammables cabinet. If one is not available,
store in a Flinn Saf-Stor™ Can.
Disposal: #18b
Shelf Life: Indefinite if stored safely.
Color and Odor: Amber liquid with butyl alcohol odor.
Nitric Acid
ACS reagent
15.8 Molar
assay 69.0 wt %
HNO3
F.W. 63.01
N0043 100 mL $ 13.81
N0016 500 mL 23.00
N0017 2.5 liters 54.93
N0055* 2.5 liters 56.44/1
219.00/4
(Packaged in PVC-coated bottles)
Nitric Acid continued
HAZARD ALERT: Corrosive; strong oxidant; toxic by inhalation and
ingestion; avoid contact with acetic acid and readily oxidized substances.
Concentrated nitric acid will attack and destroy metals and most plastics;
never store concentrated nitric acid in a plastic bottle. TLV 5.2 mg/m3.
Storage: In a separate, isolated portion of your acid cabinet. Never store
with acetic acid. If an acid cabinet is not available, store in a Flinn Saf-Cube™.
Disposal: #24b
Shelf Life: When this substance is stored for a long period, it gradually
destroys the cap. Do not interchange another cap except one designated by
its color code (red). Shelf life of nitric acid is good except for this cap problem.
Product may turn yellow due to the release of nitrogen dioxide on exposure
to light. This yellow color does not affect the product’s usefulness in the
school lab.
Soluble: Miscible with water; considerable heat is released.
Color and Odor: Colorless liquid with a suffocating, unique odor.
CAS No. 7697-37-2
Safety Purchase Suggestion: Buy and store only small package sizes
and small quantities. For safety reasons, Flinn offers larger sizes of nitric acid
and other hazardous substances in PVC-coated bottles. We have attempted to
price the products in these safer containers as low as possible.
*Nitric acid is exactly as described under catalog number N0017 but in a
PVC-coated bottle. In the event of breakage, acid and glass shards are safely
retained in a PVC outer envelope. Plas-Pak™ is a safer package for science
teachers.
Nitric Acid Solution
8 Molar N0047 500 mL $25.69
6 Molar N0048 500 mL 15.96
3 Molar N0049 500 mL 14.40
1 Molar N0050 500 mL 10.17
0.1 Molar N0052 500 mL 8.20
HAZARD ALERT: Corrosive; strong oxidizing solution; avoid contact with
acetic acid and readily-oxidized substances.
Storage: In a separate, isolated portion of your dedicated acid cabinet. Never
store near acetic acid.
Disposal: #24b
Shelf Life: Good
Color and Odor: Colorless liquid with slight nitric acid odor.
Nitrogen Gas
Lecture bottle LB1020 2 cu. ft.
(56 liters)
$268.75
Refillable cylinder LB1075 4 cu. ft.
(112 liters)
$371.28
Storage: In an area dedicated to bottled gases and away from any source
of heat or flame.
Disposal: Completely empty lecture bottle, then follow #26a.
Shelf Life: Indefinite if stored safely.
Soluble: Slightly in water and alcohol.
Color and Odor: Colorless, odorless.
CAS No. 7727-37-9
para-Nitrophenol
4-nitrophenol, indicator
pH 5.6 colorless to 7.6 yellow
O2NC6H4OH
F.W. 139.11
N0073 25 g $12.95
HAZARD ALERT: Highly toxic by ingestion, inhalation and skin absorption;
body tissue irritant. LD50 202 mg/kg.
para-NITROPHENOL continued on next page.
Continued on next column.
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 solutions whenever possible to avoid this hazard.
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