To evaluate alternatives on second supplied contaminant
Date Run:
05/04/2004
Experiment Procedure:
Nine products were selected based on client request for vapor degreasing solvents. Each product was used at full strength in a 250 ml beaker and heated to 96 F on a hot plate. Twenty-seven preweighed silver plated copper coupons were coated with the Houghton Chemical Cut-Max 135 (64742-52-5, 64741-96-4) using a hand held swab. Coupons were weighed a second time to determine the amount of soil added to each coupon. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. After cleaning parts were weighed a final time and efficiencies were calculated.
Trial Results:
All nine products removed over 85% of the oil. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
HFE 7100
0.1504
0.0230
84.71
0.2870
0.0185
93.55
0.1815
0.0127
93.00
HFE 7200
0.1089
0.0119
89.07
0.1725
0.0155
91.01
0.1083
0.0148
86.33
AK 225
0.1085
0.0034
96.87
0.3010
0.0018
99.40
0.1515
0.0019
98.75
Vertrel CCA
0.0935
0.0072
92.30
0.0866
0.0091
89.49
0.0779
0.0098
87.42
Ensolv
0.1190
0.0019
98.40
0.1042
0.0022
97.89
0.0844
0.0023
97.27
Ensolv A
0.1239
0.0012
99.03
0.1457
0.0006
99.59
0.2006
0.0008
99.60
Metalnox M6760
0.0505
-0.0003
100.59
0.1837
-0.0010
100.54
0.1136
0.0004
99.65
Solvon PB
0.1417
-0.0012
100.85
0.0547
-0.0003
100.55
0.0754
-0.0008
101.06
Solvon IP
0.1124
0.0002
99.82
0.0822
0.0003
99.64
0.1167
0.0000
100.00
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 nine products will be tested on the third supplied contaminant.
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