REFRESHING CLEAR AFTER-SHAVE FACIAL WASH
Preparation:Phase A: Add ingredients in order to main batch, ensuring product is uniform before the addition of next ingredient. Heat batch to 55°C. Mix until uniform. Add phase B ingredients slowly, one at a time in order at 55°C. Mix until uniform. Cool main batch down to 30°C. Phase C: In a separate vessel, premix ingredients. Mix until menthol crystals are dissolved. When main batch has cooled to 30°C, add phase C with mixing until uniform. Phase D: Add ingredients, in order, to main batch, ensuring product is uniform before the addition of next ingredient. Mix until uniform. Adjust final pH to 6.5-7.0 with citric acid (50% solution). Mix until uniform.
Notes:Properties Appearance Clear blue liquid pH: 6.5–7.0 Viscosity: 2200–3800 mPa·s (Brookfield RVT or DV-II @20 rpm, 25°C, #4 spindle, measured at 24 hours) Turbidity (NTU): 10-25 (HF Scientific, Inc. Micro 100 Turbidimeter) Stability: Passed 3 months @45°C, 5 cycles freeze/thaw Suppliers 1 Zschimmer & Schwarz 2 Lubrizol Advanced Materials Inc. (Noveon® Consumer Specialties) 3 Rhodia 4 Cognis 5 Evonik 6 Symrise 7 Luzi 8 Nalco 9 Lonza
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