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Trial Purpose:
To evaluate the effectiveness of six cleaning products for removing Mystery Oil and Rustlick 50/50 from copper coupons.
Date Run:
07/02/2019Experiment Procedure:
Eighteen aluminum coupons, three for each cleaner and soil, were weighed before soiling halfway on one side using a hand-held swab. Dirty weights were recorded before placing three coupons at a time into a 250 mL beaker with a diluted cleaning solution. Coupons were immersed completely for 15 minutes with written observations being made every five minutes. A rinse step was added with heated water for five minutes before drying with an air gun for five minutes. A white glove test was performed using a clean swab to look for residue and final weights were taken.
1 Aquavantage 1400, 2 Emerald HD2, 3 Mirro 90, 4 Alconox, 5 Liquinox, 6 Immersion Cleaner
Trial Results:
Cleaner | Contaminant | Initial wt. of cont. | Final wt. cont. | % Cont. Removed | Average |
1 | Mystery Oil | 0.0574 | 0.0203 | 64.63 | 88.21 |
0.0997 | 0.0000 | 100.00 | |||
0.1299 | 0.0000 | 100.00 | |||
Rustlick 50/50 | 0.2147 | 0.0137 | 93.62 | 93.94 | |
0.2042 | 0.0123 | 93.98 | |||
0.2534 | 0.0146 | 94.24 | |||
2 | Mystery Oil | 0.1158 | 0.0010 | 99.14 | 99.14 |
0.1328 | 0.0005 | 99.62 | |||
0.1356 | 0.0018 | 98.68 | |||
Rustlick 50/50 | 0.2543 | 0.0172 | 93.24 | 93.85 | |
0.2886 | 0.0174 | 93.97 | |||
0.2349 | 0.0133 | 94.34 | |||
3 | Mystery Oil | 0.1414 | 0.0016 | 98.87 | 97.69 |
0.0988 | 0.0004 | 99.59 | |||
0.1276 | 0.0069 | 94.59 | |||
Rustlick 50/50 | 0.2532 | 0.0122 | 95.18 | 94.75 | |
0.2762 | 0.0148 | 94.64 | |||
0.2729 | 0.0152 | 94.43 | |||
4 | Mystery Oil | 0.0870 | 0.0096 | 88.96 | 89.60 |
0.1091 | 0.0079 | 92.76 | |||
0.1678 | 0.0217 | 87.07 | |||
Rustlick 50/50 | 0.0808 | 0.0038 | 95.30 | 93.69 | |
0.0770 | 0.0073 | 90.52 | |||
0.0800 | 0.0038 | 95.25 | |||
5 | Mystery Oil | 0.0890 | 0.0017 | 98.09 | 96.85 |
0.1012 | 0.0061 | 93.97 | |||
0.0858 | 0.0013 | 98.48 | |||
Rustlick 50/50 | 0.0888 | 0.0092 | 89.64 | 87.04 | |
0.1495 | 0.0202 | 86.49 | |||
0.0940 | 0.0141 | 85.00 | |||
6 | Mystery Oil | 0.1162 | 0.0013 | 98.88 | 91.91 |
0.0493 | 0.0102 | 79.31 | |||
0.1140 | 0.0028 | 97.54 | |||
Rustlick 50/50 | 0.2310 | 0.0402 | 82.60 | 85.89 | |
0.2416 | 0.0279 | 88.45 | |||
0.2444 | 0.0328 | 86.58 |
Visual Observations for Mystery Oil Coupons:
Cleaner | 5 Mins | 10 Mins | 15 Mins | Rinse |
1 | - soil immediately turned pale white - soil floating to top of water |
- white rim forming at top of water - soil smoothly spread on coupon |
- soil seems to all float to the top of the water
|
- very thin white rim at top of water -thin white film on coupon |
2 | - soil immediately turned pale white - water turned slightly white |
- white rim forming at top of the water - soil smoothly spread on coupon - water slightly turning white |
- soil seems to all float to the top of the water
|
- very light streaks on coupon
|
3 | - soil immediately turned pale white - soil floating off of coupon, to the top of water |
- thick white rim at top of water | - soil seems to all float to the top of the water - remaining white layer of soil on coupon |
- thin white rim on top coupon |
4 | - soil immediately turned pale white - soil coming off coupon, floating to top of the water |
- thin white rim forming at top of water - water slightly cloudy/white |
- white rim at top of water - visible white streaks along coupon |
- water slightly cloudy - white streaks in water |
5 | - soil immediately turned pale white - water is turning light white |
- thick + bubbly white rim at top of water
|
- soil seems to all float to the top of the water | - very faint white film on coupon |
6 | - soil turning slight white | - very thin white rim forming at top of water - visible white streaks along coupon |
- think white rim at top of water - visible white streaks along coupon |
- water turning cloudy - white rim at top of water |
Visual Observations for Rustlick 50/50 Oil Coupons:
Cleaner | 5 Mins | 10 Mins | 15 Mins | Rinse |
1 | - streaks of soil visible moving down coupon - soil detached, floating in front of coupon |
- opaque blue rim forming at top of water - soil in the middle coupon seems to be removing |
- coupon looks cleaner - some soil still visible on coupon
|
- blue tint in water |
2 | -little to no soil change - water getting cloudy - opaque blue rim floating at top of water |
- seems to be removing only the thin layers of soil, not thicker layer | - coupon looks cleaner - some soil still visible on coupon |
- slight visible clouds in water - water is blue - effective but little chunks of soil still remain on coupon |
3 | - soil slowly moving to bottom of coupon - water getting cloudy - opaque blue rim floating at top of water |
- blue rim at top of water getting thicker - increased streaks visible along coupon |
- coupon looks cleaner - looks like soil is floating in front of coupon |
- very thin rim forming at top - slight clouds in water - looks effective - water is blue at top (not bottom) |
4 | - immediate change in soil color (lighter) - streaks visible on coupon - water getting slightly cloudy |
- increased streaks of soil floating along the coupon | - blue rim forming on top of water | - soil still remaining on coupon |
5 | - immediate change in soil color (lighter) - water getting cloudy - streaks visible on coupon |
- blue rim forming at top of the water - increased streaks of soil floating in water |
- water getting cloudy | - some soil still remaining on coupon |
6 | - soil breaking into chunks - soil chunks are floating |
- blue rim forming at the top of water | - water got cloudy - chunks of soil floating in water |
- thin layer of soil still on coupon |
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.Conclusion:
All six cleaners were effective at removing Rustlick 50/50 and Mystery Oil from copper coupons.