01.01.09
1. Water [deionized] | 90.78 |
2. Propylene Glycol USP EP (Dow) (Propylene glycol) | 2.50 |
3. CoSept M (HallStar) (Methylparaben) | 0.15 |
4. Carbopol 934 (Noveon) (Carbomer) | 0.15 |
5. Sodium hydroxide NF (20% aqueous) (Sodium hydroxide) | 0.32 |
6. HallStar KLA (HallStar) (Cetearyl alcohol (and) ceteareth-20) | 1.50 |
7. HallStar MM (HallStar) (Myristyl myristate) | 1.50 |
8. HallStar GMS Pure (Hallstar) (Glyceryl stearate) | 1.00 |
9. RTD Stearic Acid V-1655 (Hallstar) (Stearic acid) | 2.00 |
10. CoSept P (Hallstar) (Propylparaben) | 0.10 |
Procedure | |
(Use strong mixing, without aeration, throughout.) To main vessel add 1. Start mixing and begin heating to 45-50°C. Disperse 3 in 2 with mixing, heating as necessary to achieve solution. When 3 is fully dissolved, slowly add this premix to the main vessel with water at 45-50°C. With rapid but smooth agitation, very slowly add 4 to the main vessel (when an eductor is available, withhold some water for use with the eductor to incorporate 4). Continue heating this water phase to 75-80°C. Meanwhile, in a separate vessel combine 6 through 10 and heat this oil phase to 70-75°C and mix to make uniform and prevent overheating. When the water phase is at 75-80°C, with the carbomer fully dispersed (no “fish eyes”), slowly add 5 to the main vessel, maintaining strong mixing without aeration. After several minutes, when the batch is uniform, slowly add the uniform, 70-75°C, oil phase. Maintain the batch at 75°C for 20 minutes (until a uniformly small particle size emulsion is achieved) and then start cooling. At 45°C add fragrance and approved colorants as desired. Stop cooling and mixing when uniform and at desired filling temperature. Perform final quality assurance checks. | |
Properties | |
(25°C, freshly prepared; uncolored and unfragranced) Appearance: thick, smooth white lotion Aesthetics: no tack during application or rub-in Odor: bland and characteristic pH (10% aq): 6.7 Viscosity (Brookfield RV, T-D, 5, 10, 50 & 100 rpm; cPs): 64000, 34800, 8920 & 4980 Stability: passed three freeze-thaw cycles and five months at 45°C | |
More Information | |
The HallStar Company, Chicago, IL, (877) 427-4255, (312) 385-4494 Fax: (908) 852-1335, E-mail: customerservice@hallstar.com, Website: www.hallstar.com |