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Trial #8

Trial #8

To evaluate the effectiveness of SB-33 (a D limonene and Dimethyl Glutarate mixture) and SB-31 (a Benzyl Alcohol and Ethyl Lactate miscture) in removing several production oils and greases from stainless steel coupons as a potential replacement for TCE unheated immersion cleaning method.

2023

31

2

0

0

Coupon

05/22/2023

0.00

Immersion/Soak

Amelia Wagner

Stainless Steel

Greases
Lubricating/Lapping Oils
Oil

None

None

Gravimetric

Three stainless steel coupons were used for each of the two soils being tested against both cleaners for a total of 12 coupons.  The initial weights of each coupon were recorded. The bottom third of every coupon was soiled by applying the corresponding soil with a swab.  The dirty weights of each coupon were then recorded.  The coupons were then subjected unheated immersion in SB-33 and SB-31 with the stir bar at 200rpm for 15 mins.  The next morning, the clean weights of each coupon were taken

Soil Use CAS
Hocut 795 Metalworking Fluid 78-96-6, 101-83-7, 10043-35-3, 2634-33-5
RI 780 Corrosion Inhibitor  64742-88-7

Cleaner Soil Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
SB-33 Hocut 795 0.0248 0.0053 78.63 73.09 79.60
0.0521 0.0051 90.21
0.0113 0.0056 50.44
RI 780 0.0205 0.0039 80.98 86.10
0.0169 0.0002 98.82
0.0186 0.0040 78.49
SB-31 Hocut 795 0.0728 0.0375 48.49 38.64 59.07
0.0352 0.0331 5.97
0.0799 0.0308 61.45
RI 780 0.0286 0.0045 84.27 79.49
0.0299 0.0033 88.96
0.0236 0.0082 65.25

SB-33 is an effective alternative to TCE in removing Hocut 795 and RI 780 using unheated immersion method.  SB-31 is an effective alternative to TCE in removing RI 780 using unheated immersion method.

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
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