Rod Electrode



200 Amp Tweco Style Electrode Holder Welding Rod holder
200 Amp Tweco Style Electrode Holder Welding Rod holder
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THERMOSTEAM 5/8
THERMOSTEAM 5/8" ELECTRODE PROBE W/O ROD NPT
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AUBURN SI-185 IGNITOR FLAME ROD SPARK ELECTRODE CS13025
AUBURN SI-185 IGNITOR FLAME ROD SPARK ELECTRODE CS13025
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Welder's Choice Ground Tungsten Electrode TE15L-18-10T 1/8
Welder's Choice Ground Tungsten Electrode TE15L-18-10T 1/8" 10 Rods NEW (YB136)
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STICK ELECTRODE WELDING ROD, Lot of 4 types:Harris Welco, Lincoln, Chicago, ?
STICK ELECTRODE WELDING ROD, Lot of 4 types:Harris Welco, Lincoln, Chicago, ?
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NEW IN BOX FENWAL 22-100000-593 SPARK ELECTRODE WITH INTEGRAL FLAME SENSE ROD
NEW IN BOX FENWAL 22-100000-593 SPARK ELECTRODE WITH INTEGRAL FLAME SENSE ROD
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Welding Rod Electrode Holder 250 Amp Tweco Style
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Tweco A-732 Electrode Holder 9110-1103 ~ New In Box ~ Welder/Welding Rod Holder
Tweco A-732 Electrode Holder 9110-1103 ~ New In Box ~ Welder/Welding Rod Holder
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Welding Rod Nickel 99 3/32
Welding Rod Nickel 99 3/32" 1 Lb Electrode Cast Iron
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Welding Electrode Stainless Rod 308L-16 3/32
Welding Electrode Stainless Rod 308L-16 3/32" x 12" 10 Lb Box
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10# Welding Electrode Rod 6010 6011 6013 7014 7018 7024
10# Welding Electrode Rod 6010 6011 6013 7014 7018 7024
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Stainless Welding Rods 1/8
Stainless Welding Rods 1/8" 10# 210-3000 Electrode
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Stainless Welding Rods 3/32
Stainless Welding Rods 3/32" 10# 210-2030 Electrode
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Stainless Welding Rods 3/32
Stainless Welding Rods 3/32" 10# 210-2040 Electrode
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Cronaweld 375 The X-Ray Proven Alloy Electrode welding rods 3/16
Cronaweld 375 The X-Ray Proven Alloy Electrode welding rods 3/16" 10lb box
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6013 1/16 Welding Electrode Rod 2lbs Tube 12
6013 1/16 Welding Electrode Rod 2lbs Tube 12" 110 Stick welder
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RedBarron Stainles weld rod/covered electrode,1/8
RedBarron Stainles weld rod/covered electrode,1/8" dia.x12" long 308/308L, 3 lbs
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6013 5/64 Welding Electrode Rod 2lbs 12
6013 5/64 Welding Electrode Rod 2lbs 12" 110 Stick welder
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Rod Guard Electrode Canister, 36
Rod Guard Electrode Canister, 36" for TIG / Brazing rod
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7 LBS OF HOBART ELECTRODE WELDING RODS - 1/8
7 LBS OF HOBART ELECTRODE WELDING RODS - 1/8"
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10 LBS OF HOBART ELECTRODE WELDING RODS - 1/8
10 LBS OF HOBART ELECTRODE WELDING RODS - 1/8"
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ROD GUARD WELDING ELECTRODE ROD STORAGE 14
ROD GUARD WELDING ELECTRODE ROD STORAGE 14" NEW
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E307-16 STAINLESS Steel  WELDING ROD ELECTRODE 2.6mm
E307-16 STAINLESS Steel WELDING ROD ELECTRODE 2.6mm
US $12.50
E308-15 STAINLESS Steel  WELDING ROD ELECTRODE 2.6mm
E308-15 STAINLESS Steel WELDING ROD ELECTRODE 2.6mm
US $15.50
E309MoL-16 STAINLESS Steel  WELDING ROD ELECTRODE 2.6mm
E309MoL-16 STAINLESS Steel WELDING ROD ELECTRODE 2.6mm
US $17.20
E347-16 STAINLESS Steel  WELDING ROD ELECTRODE 2.6mm
E347-16 STAINLESS Steel WELDING ROD ELECTRODE 2.6mm
US $10.60
E410-16 STAINLESS Steel  WELDING ROD ELECTRODE 2.5mm
E410-16 STAINLESS Steel WELDING ROD ELECTRODE 2.5mm
US $15.60
NOS! MAXON FLAME ROD IGNITION ELECTRODE 25663
NOS! MAXON FLAME ROD IGNITION ELECTRODE 25663
US $22.95
New Tweco TwecoTong A-732 300 Amp Welding Rod Electrode Holder NR
New Tweco TwecoTong A-732 300 Amp Welding Rod Electrode Holder NR
US $17.99
Copper Tungsten 50-235 Rod Round Bar 1/16
Copper Tungsten 50-235 Rod Round Bar 1/16" DIA x 8" L EDM Electrode Conductive
US $20.00
Copper Tungsten 50-235 Rod Round Bar 1/8
Copper Tungsten 50-235 Rod Round Bar 1/8" DIA x 8" L EDM Electrode Conductive
US $16.00
Copper Tungsten 50-235 Rod Round Bar 3/32
Copper Tungsten 50-235 Rod Round Bar 3/32" DIA x 8" L EDM Electrode Conductive
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Copper Tungsten 50-235 Rod Round Bar 3/4
Copper Tungsten 50-235 Rod Round Bar 3/4" DIA x 8" L EDM Electrode Conductive
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Copper Tungsten 50-235 Rod Round Bar 3/8
Copper Tungsten 50-235 Rod Round Bar 3/8" DIA x 8" L EDM Electrode Conductive
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Copper Tungsten 50-235 Rod Round Bar 5/16
Copper Tungsten 50-235 Rod Round Bar 5/16" DIA x 8" L EDM Electrode Conductive
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Copper Tungsten 50-235 Rod Round Bar 7/8
Copper Tungsten 50-235 Rod Round Bar 7/8" DIA x 8" L EDM Electrode Conductive
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ROD GUARD for tig rod wire electrode 36
ROD GUARD for tig rod wire electrode 36" long 300-1 2EA
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LOT 5 JDS UNIPHASE LASER SOLDER ELECTRODE SOLDERING ROD
LOT 5 JDS UNIPHASE LASER SOLDER ELECTRODE SOLDERING ROD
US $9.99
TechAlloy Tech Rod 182 ENiCrFe-3 Nickel Electrode Weld Inconel
TechAlloy Tech Rod 182 ENiCrFe-3 Nickel Electrode Weld Inconel
US $145.00
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Welding stick electrode Murex 7018 1/8 Dia Rod 50-lb Can
Welding stick electrode Murex 7018 1/8 Dia Rod 50-lb Can
US $125.00
E308L-16 Stainless Steel 1/8
E308L-16 Stainless Steel 1/8" 5LB STICK ELECTRODE WELDING ROD
US $52.95
E308L-16 Stainless Steel 3/32
E308L-16 Stainless Steel 3/32" 5LB STICK ELECTRODE WELDING ROD
US $54.95
E309L-16 Stainless Steel 1/8
E309L-16 Stainless Steel 1/8" 5LB STICK ELECTRODE WELDING ROD
US $57.50
E309L-16 Stainless Steel 3/32
E309L-16 Stainless Steel 3/32" 5LB STICK ELECTRODE WELDING ROD
US $59.00
E316L-16 Stainless Steel 1/8
E316L-16 Stainless Steel 1/8" 5LB STICK ELECTRODE WELDING ROD
US $58.50
E316L-16 Stainless Steel 3/32
E316L-16 Stainless Steel 3/32" 5LB STICK ELECTRODE WELDING ROD
US $59.50
1.5mm Rod Diameter Threaded Water Level Electrode New
1.5mm Rod Diameter Threaded Water Level Electrode New
US $14.05
Cast Iron Repair Stick Electrode 1/8
Cast Iron Repair Stick Electrode 1/8"x14" Rod Nickel55 Ni55 ENiFe-C1, 5pcs
US $11.99
Cast Iron Repair Stick Electrode 3/32
Cast Iron Repair Stick Electrode 3/32"x12" Rod Nickel55 Ni55 ENiFe-C1, 5pcs
US $8.49
Cast Iron Repair Stick Electrode 1/8
Cast Iron Repair Stick Electrode 1/8"x14" Rod Nickel99 Ni99 ENi-C1, 5pcs
US $13.99
Cast Iron Repair Stick Electrode 3/32
Cast Iron Repair Stick Electrode 3/32"x12" Rod Nickel99 Ni99 ENi-C1, 5pcs
US $9.99
Cast Iron Repair Stick Electrode 1/8
Cast Iron Repair Stick Electrode 1/8"x14" Rod Nickel55 Ni55 ENiFe-C1, 1-Lb
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Cast Iron Repair Stick Electrode 3/32
Cast Iron Repair Stick Electrode 3/32"x12" Rod Nickel55 Ni55 ENiFe-C1, 1-Lb
US $15.85
Cast Iron Repair Stick Electrode 1/8
Cast Iron Repair Stick Electrode 1/8"x14" Rod Nickel99 Ni99 ENi-C1, 1-Lb
US $22.95
Cast Iron Repair Stick Electrode 3/32
Cast Iron Repair Stick Electrode 3/32"x12" Rod Nickel99 Ni99 ENi-C1, 1-Lb
US $22.45
10# Welding Electrode Rod 6010 6011 6013 7014 7018 7024
10# Welding Electrode Rod 6010 6011 6013 7014 7018 7024
US $34.00
Rod Guard Electrode Canister, 14
Rod Guard Electrode Canister, 14" for standard welding rods
US $6.75
Welding Stick Electrode Rod Bag 5 Lb Capacity Leather
Welding Stick Electrode Rod Bag 5 Lb Capacity Leather
US $9.99
FURNACE ELECTRODE SENSOR ROD TD584A
FURNACE ELECTRODE SENSOR ROD TD584A
US $8.00
FURNACE ELECTRODE SENSOR ROD TD593A
FURNACE ELECTRODE SENSOR ROD TD593A
US $8.00
1.5mm Rod Diameter Threaded Water Level Electrode New
1.5mm Rod Diameter Threaded Water Level Electrode New
US $14.03
Carbon Rod Electrode of Various sizes for Electrolysis
Carbon Rod Electrode of Various sizes for Electrolysis
US $1.20
10 LB INWELD WELDING ELECTRODE 1/8
10 LB INWELD WELDING ELECTRODE 1/8" 14" RODS NEW
US $35.00
E6011 1/8
E6011 1/8" 5LB STICK ELECTRODE WELDING ROD
US $24.95
Welding Rod Electrode Holder 300 Amp Tweco Style A- 732
Welding Rod Electrode Holder 300 Amp Tweco Style A- 732
US $23.99
Certanium 429 Bronze Electrode Bronze -1/8
Certanium 429 Bronze Electrode Bronze -1/8" diameter / #12980 /8 lbs Welding rod
US $40.00
Phoenix Dry Rod II Portable Electrode Oven 50lbs Capacity
Phoenix Dry Rod II Portable Electrode Oven 50lbs Capacity
US $259.99
Welding Electrode NI-ROD 55  5/32
Welding Electrode NI-ROD 55 5/32" CAST IRON Arc Welding
US $12.00
E6010 1/8
E6010 1/8" 5LB STICK ELECTRODE WELDING ROD
US $24.95
E6010 3/32
E6010 3/32" 5LB STICK ELECTRODE WELDING ROD
US $25.95
E6011 3/32
E6011 3/32" 5LB STICK ELECTRODE WELDING ROD
US $25.95
E6013 1/8
E6013 1/8" 5LB STICK ELECTRODE WELDING ROD
US $21.00
E6013 3/32
E6013 3/32" 5LB STICK ELECTRODE WELDING ROD
US $23.00
E7014 1/8
E7014 1/8" 5LB STICK ELECTRODE WELDING ROD
US $22.00
E7014 3/32
E7014 3/32" 5LB STICK ELECTRODE WELDING ROD
US $23.00
E7018 1/8
E7018 1/8" 5LB STICK ELECTRODE WELDING ROD
US $22.00
E7018 3/32
E7018 3/32" 5LB STICK ELECTRODE WELDING ROD
US $23.00
6013 5/64 Welding Electrode Rod 2lbs Tube 12
6013 5/64 Welding Electrode Rod 2lbs Tube 12" 110 Stick welder
US $16.45
WELDING ELECTRODE ROD OVEN  - 50# 115V - NEW - 100 TO 300 DEGREE
WELDING ELECTRODE ROD OVEN - 50# 115V - NEW - 100 TO 300 DEGREE
US $329.95
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Rod Electrode
cu2+ / cu and fe3+ / fe2+ half cells?

hey,
according to the electrochemical series, the copper electrode should be negative, right?
but in my experiment, i got it positive and the carbon rod for iron ions is positive?
am i wrong????
note that the concentraion used is 0.1 M not the standard 1 M (for electrochemical series)
Dr Dave P, thanx r ur reply but in the experiment iam using 0.1 M of solutions and the electrochemical series is standard for 1 M of solution, any effect in that?

Fe+3 + e- <--> Fe+2 Eº = + 0.77V
Cu+2 + 2e- <--> Cuº Eº = +0.34V

ref: http://www.chemguide.co.uk/physical/redoxeqia/ecs.html

So to make this cell work we need this:

Cuº <--> Cu+2 + 2e- Eº = -0.34V
2Fe+3 + 2e- <--> 2Fe+2 Eº= 1.44V

Cuº + 2Fe+3 <--> Cu+2 + 2Fe+2 Ecell = +1.1 V

The copper electrode should be negative and be the anode (oxidation happens at the anode). The other electrode (carbon?) should be positive and be the cathode.

Edit: The concentration shouldn't make any difference in the potential.



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