The purpose of the experiment was to reformulate the clients product using their base oil and eliminating the use of current solvent.
Three propriety replacement chemicals were selected (A, B, and C) to be mixed with the oil on a percent volume ratio. Mixtures were made up of 80% base oil and 20% replacement chemistry. The resulting product was then visually observed to determine
stability. Several readings were recorded at different time intervals (0, 15min, 30min, 60min, 21/2hours, 5hrs, and 22hrs). At each period, the amount of separation that had taken place was measure in millimeters and any notable observations were documented.
SUBSTRATE MATERIAL: Liquid-Tapping oil formulation CONTAMINANTS: NA
Trial Results:
Table 1 list the three replacement chemistries and their separation levels and the notable observations.
Table 1 Product Reformulation Data
Replacement Chemistry
0 min
15 min
30 min
60 min
2.5 hrs
5 hrs
22 hrs
A
Total volume
Separated Out
Observation:
23.2 mL
3.8 cm
small bubbles throughout
23.2mL
3.8 cm
small bubbles almost gone
23.2mL
3.8 cm
few bubbles left
23.2 mL
3.9 cm
no bubbles
23.2 mL
3.9 cm
no change
23.2 mL
3.9 cm
no change
23.2 mL
3.9 cm
no change
B
Total volume
Separated Out
Observation:
23.5 mL
4.9 cm
bubbles throughout
23.5 mL
5.0 cm
most of bubbles gone
23.5 mL
5.0 cm
bubbles all gone
23.5 mL
5.0 cm
no change
23.5 mL
5.0 cm
no change
23.5 mL
5.0 cm
no change
23.5 mL
5.0 cm
no change
C
Total volume
Separated Out
Observation:
23.05 mL
0.05 cm
very few bubbles
23.05 mL
0.05 cm
no bubbles
23.05 mL
no change
no change
23.05 mL
no change
no change
23.05 mL
no change
no change
23.05 mL
no change
no change
23.05 mL
no change
no change
From the data obtained, replacement chemistry C appears to be the most stable of the three choices. Sample C had the lowest amount of separation that did not change over the observed time period.
Success Rating:
A follow up test, usually based on company input.
Conclusion:
Sample C has been determined to be the most stable mixture of the three replacement chemistries selected. Having determined a replacement chemistry compatible with the carrier oil, a lower concentration sample (10% by volume) will be made up and sent to the client to be tested for product functionality. Special consideration should be given to flammability/flash point of the blend, since the solvent replacement is a developmental chemistry.
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