Page 61 - Demo

“Your Safer Source for Science”
IRON continued Strips
mild steel, 6" x 1⁄2" x 0.024" Wire, 18 gauge
1.2 mm diameter
Save On HazMat Fees
59
(100 cm = 8.8 g)
 HAZARD ALERT: Metals in fine powder form present a serious fire
and explosion risk.
Storage: Inorganic #1
Disposal: #26a
Shelf Life: Indefinite; keep powder dry and protected from fire. Store powder in a Flinn Saf-StorTM Can.
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.
F0041 F0015
25 g 100 g
$12.55 26.20
Iron Oxide, Black
iron(II, III) oxide, ferric ferrous oxide, triiron tetraoxide, black iron oxide
 HAZARD ALERT: Slightly toxic by ingestion; body tissue irritant. Storage: Inorganic #2
Disposal: #26a
Shelf Life: Poor; substance deliquescent and easily oxidized; store in a Flinn Chem-Saf TM Bag.
Soluble: Water and alcohol.
Color and Odor: Pea green solid with slight chlorine odor. CAS No. 13478-10-9
laboratory grade, powder Fe3O4
F.W. 231.54
Storage: Inorganic #4 Disposal: #26a
Shelf Life: Indefinite Soluble: In acids; not water.
F0012 500 g
$16.40
I0058
I0050 I0062
pkg./10
strips 25 g
100 g
$ 7.10
$10.15 31.90
IRON OXIDE, BLACK continued
Color and Odor: Black, odorless solid.
CAS No. 1317-61-9
Iron(II) Ammonium Sulfate
see Ferrous Ammonium Sulfate
Iron(II) Chloride
ferrous chloride reagent grade, crystal FeCl2•4H2O
F.W. 198.81
Continued on next column.
Iron(ll)...Ferrous...Iron compounds in which the iron has an ionic charge or oxidation number of two.
Iron(II) Sulfate
ferrous sulfate
laboratory grade, granular FeSO4•7H2O
F.W. 278.03
F0016 500 g
IRON(II) SULFATE continued on next page.
$11.70
Indicators, pH Ranges
Indicator
Flinn Catalog Nos.
pH Range
Color Change
Alizarin Red S
A0117
4.6–6.0
yellow to red
Alizarin Yellow R
A0136
10.2–12.2
yellow to red
Aniline Blue
A0091
10–13
blue to orange
Bromcresol Green
B0039, B0040
3.8–5.4
yellow to blue
Bromcresol Purple
B0042
5.2–6.8
yellow to purple
Bromphenol Blue
B0044
3.0–4.6
yellow to purple
Bromthymol Blue
B0045, B0046
6.0–7.6
yellow to blue
Congo Red
C0120
3.0–5.0
blue to red
m-Cresol Purple
C0184
1.2–2.8 & 7.4–9.0
red to yellow yellow to purple
Cresol Red
C0123
2.0–3.0 & 7.2–8.8
orange to amber yellow to red
Crystal Violet
C0124, C0125
0–1.8
yellow to violet-blue
Eosin Y (fluorescent)
E0023
0–3.0
yellow to yellow fluorescent
Erythrosin B (fluorescent)
E0055
0–3.6
yellow to yellow fluorescent
Fluorescein (fluorescent)
F0018, F0043
4.0–4.5
colorless to green fluorescent
Flinn
Indicator Catalog Nos. pH Range Color Change
Indigo Carmine I0047, I0022 11.6–13.0 blue to yellow
Litmus L0077 4.5–8.3 red to blue
Malachite Green M0129 0.0–2.0 & yellow to green Oxalate 11.6–14.0 blue-green to
colorless
Methyl Orange M0076 3.0–4.4 red to yellow
Methyl Red M0081 4.4–6.2 red to yellow
Methyl Violet 2B M0083 0.1–2.7 yellow to violet
Neutral Red N0057 6.8–8.0 red to yellow
m-Nitrophenol N0088 6.8–8.6 colorless to yellow
p-Nitrophenol N0073 5.6–7.6 colorless to yellow
Orange G Q0027 11.5–14.0 yellow to pink
Phenol Red P0097, P0188 6.8–8.4 yellow to red
Phenolphthalein P0017, P0018, 8.2–10.0 colorless to pink P0193, P0276
Resazurin R0012 3.8–6.5 orange to dark violet
Thymol Blue T0025 1.2–2.8 & red to yellow 8.0–9.2 yellow to blue
Thymolphthalein T0073 9.3–10.5 colorless to blue
Universal U0001, U0002, 4–10 chart necessary
Indicator
U0009, U0011
Universal Indicator, Rainbow Acid
U0012 1–7 chart necessary
Universal Indicator, Red Cabbage Extract
U0014 2–11 chart necessary
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.