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Trial #1

Trial #1

Test previously identified alternatives of Benzyl Alcohol, Anisole, Thiophene, and 1-methoxy-2-propanol in a cleaning application that matches actual in-situ cleaning done at the client's facility.

36

0

1

9

9

Coupon

08/19/2025

0.00

Manual Wipe

Alexander Symko
Tatyanna Moreland Junior

Stainless Steel

Abrasive

None

Oven-Convection

Gravimetric

15 stainless steel coupons were prepared for this experiment, with weights prior to soiling be taken and recorded. For soiling procedure each of the coupons were soiled with approximately 1/10 of a gram of cross-linker+polymer mixture, prepared in a 4:100 mixture. After soiling, the coupons were put into a laboratory convection oven and baked at 300 degrees Fahrenheit for 30 minutes. Following this, the coupons were allowed to cool to room temperature for 1 hour and then dirty weights were taken. The chosen solvents were then applied to a cotton rag and the coupons were vigorously manually wiped for 30 seconds each with the chosen solvent. These were then allowed time to air dry overnight before final weights were taken. 

Solvent Coupon # Initial wt. Cont. wt Clean wt. Initial wt of cont. Final wt of cont. %Cont Removed Avg% removal by solvent
Methyl Ethyl Ketone 12 60.7306 60.8434 60.7383 0.1128 0.0077 93.17 84.59
17 60.4121 60.5171 60.4257 0.1050 0.0136 87.05
36 60.9888 61.1045 61.0194 0.1157 0.0306 73.55
Thiophene 33 60.7854 60.8734 60.7973 0.0880 0.0119 86.48 87.45
1 60.6177 60.7234 60.6272 0.1057 0.0095 91.01
28 60.7652 60.8688 60.7809 0.1036 0.0157 84.85
Anisole 21 61.0115 61.1092 61.0281 0.0977 0.0166 83.01 76.76
2 60.9375 61.0308 60.9687 0.0933 0.0312 66.56
13 60.6042 60.6706 60.6170 0.0664 0.0128 80.72
1-methoxy-2-propanol 29 60.9335 61.0272 60.9813 0.0937 0.0478 48.99 38.21
5 61.0058 61.1173 61.0801 0.1115 0.0743 33.36
32 60.9818 61.0896 61.0548 0.1078 0.0730 32.28
benzyl alcohol 20 61.0607 61.1907 61.1373 0.1300 0.0766 41.08 40.33
8 60.9664 61.0739 61.0316 0.1075 0.0652 39.35
7 60.8798 60.9915 60.9462 0.1117 0.0664 40.56

Based on the results of this test, Thiophene proved to be very effective at removing the client's soil from the stainless steel coupons averaging 87.45% removal. This was closely followed in effectiveness by Methyl Ethyl Ketone with an average removal of 84.59%. Third most effective was Anisole with 76.76% average removal. Neither 1-methoxy-2-propanol or Benzyl Alcohol were considered effective in this cleaning application. 

No relation

Name Class Section
Document Evaluation #0 Evaluation 3
Document Evaluation #1 Evaluation 3
Document Evaluation #2 Evaluation 3
Document Evaluation #3 Evaluation 3
Document Evaluation #4 Evaluation 3
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