Study Set Content:
no fixed ratio)
English or wet gum method
English or wet gum method
(1 Granular acacia + 2 water) + 4 oil in portions
Bottle or Forbes bottle method ratio
(1 Powdered acacia + 2 parts of oil) + 2 parts of water in portions
Calcium soaps - - W/O emulsions that contain certain vegetable oils, such as oleic acid, in combination with limewater (Calcium Hydroxide Solution, USP) in a 1:1 rati
In-situ soap method
For volatile oils or oleaginous substances of low viscosities
Bottle or Forbes bottle method
Example of In-Situ soap method
Calamine Liniment
Soft soaps
In-Situ soap method
Calamine lotion Formulation
Calamine
variable, usually 5% w/v
Zinc oxide
80 g
Olive oil Calcium hydroxide solution qs ad
1000 mL
Calamine
API
Zinc oxide
skin protectant
Olive oi
vehicle
Calcium hydroxide
vehicle, astringent
Emulsion defects.. Because emulsions are
thermodynamically unstable.
Creaming
Flocculation
Ostwald ripening
Phase inversion
Coalescence
