flinnsci.com CHEMICALS SAVE ON HAZMAT FEES 59
Iron, Filings
fine, 65 mesh
Fe, A.W. 55.85
Pure iron I0011 500 g $ 8.28
I0012 2 kg 27.73
Non-rusting alloy I0059 500 g $11.88
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Indefinite
Soluble: Sulfuric, hydrochloric, and cold, dilute nitric acids.
Color and Odor: Gray/black, odorless solid.
CAS No. 7439-89-6
Technical Note: Pure iron filings quickly oxidize (rust) and can be
messy. Flinn’s iron alloy metal filings act just like iron filings for magnetism
experiments, but resist oxidation. Use pure iron filings for iron sulfide or other
chemistry experiments.
Iron, Galvanized
28 gauge, 2.5" square pieces
I0064 pkg./5 $9.98
For storage, disposal, etc.,
see Iron, Sheet, I0015.
Iron, Nails
3" long, 10 penny I0032 1 lb $7.09
nongalvanized steel
For storage, disposal, etc.,
see Iron, Sheet, I0015.
Iron, Powder
Reagent grade I0013 100 g $15.08
reduced electrolytic
Laboratory grade I0014 500 g $16.45
HAZARD ALERT: Metals in fine powder form present a serious fire and
explosion risk.
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Good if kept dry and protected from fire. Store in a Flinn Saf-Stor™
Can.
Soluble: Sulfuric, hydrochloric and cold, dilute nitric acids.
Color and Odor: Gray, odorless solid.
CAS No. 7439-89-6
Iron, Sheet
mild steel
12" x 12" x 0.024", B&S gauge #24 I0015 each $11.82
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Excellent
Color and Odor: Gray, odorless solid.
Iron, Strips
mild steel, 6" x 1⁄2" x 0.024" I0058 pkg./10
strips
$7.98
For storage, disposal, etc., see Iron, Sheet, I0015.
Iron, Wire
wire, 18 gauge
1.2 mm diameter
(100 cm = 8.8 g)
I0050 25 g $10.91
I0062 100 g 34.99
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Excellent
Color and Odor: Gray, odorless solid.
CAS No. 7439-89-6
Iron Oxide, Black
iron(II, III) oxide, ferric ferrous oxide,
triiron tetraoxide, black iron oxide
laboratory grade, powder
Fe3O4
F.W. 231.54
F0012 500 g $18.17
Storage: Inorganic #4
Disposal: #26a
Shelf Life: Indefinite
Soluble: In acids; not water.
Color and Odor: Black, odorless solid.
CAS No. 1317-61-9
Iron(II) Ammonium Sulfate
see Ferrous Ammonium Sulfate
Iron(ll)…Ferrous…Iron compounds in which the iron has an ionic
charge or oxidation number of two.
Indicators, pH Ranges
Indicator
Flinn
Catalog Nos. pH Range Color Change
Bromcresol Green B0040 3.8–5.4 yellow to blue
Bromphenol Blue B0044 3.0–4.6 yellow to purple
Bromthymol Blue B0046 6.0–7.6 yellow to blue
Congo Red C0120 3.0–5.0 blue to red
Crystal Violet C0125 0–1.8 yellow to violet-blue
Indigo Carmine I0022 11.6–13.0 blue to yellow
Malachite Green
M0129 0.0–2.0 &
Oxalate
11.6–14.0
yellow to green
blue-green to colorless
Methyl Orange M0076 3.0–4.4 red to yellow
Methyl Red M0081 4.4–6.2 red to yellow
See individual indicator listings in alphabetical sequence in the chemical section
of this catalog/reference manual. In many cases, the listing includes ready-made
solutions of these indicators.
Indicator
Flinn
Catalog Nos. pH Range Color Change
p-Nitrophenol N0073 5.6–7.6 colorless to yellow
Phenol Red P0188 6.8–8.4 yellow to red
Phenolphthalein P0017, P0018,
P0193, P0276
8.2–10.0 colorless to pink
Thymol Blue T0025 1.2–2.8 &
8.0–9.2
red to yellow
yellow to blue
Thymolphthalein T0073 9.3–10.5 colorless to blue
Universal Indicator U0001, U0002,
U0009, U0011
4–10 chart necessary
Universal Indicator,
Rainbow Acid
U0012 1–7 chart necessary
Universal Indicator,
Red Cabbage Extract
U0014 2–11 chart necessary
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