What is HLB value of emulsifiers?
What is HLB value of emulsifiers?
1 to 20
The HLB index is based upon the relative percentage of hydrophilic to lipophilic groups within the emulsifier molecule. The assigned values range from 1 to 20. Lower HLB values indicate a more lipophilic emulsifier, whereas higher values indicate a more hydrophilic emulsifier.
What is the HLB of cetearyl alcohol?
Crystallinity is a property of lipids, and this has been cetearyl alcohol emulsions with HLB 15.5.
How do you calculate HLB value of emulsifier?
Take, for example, a surfactant with an HLB value of 9.8 which is not soluble in water. The solution is to blend two surfactants of known HLB, one high and one low. Using the following equation: HLB desired = ( % surfactant A ) × ( HLB Surfactant A ) + ( % surfactant B ) × ( HLB Surfactant B . )
What is HLB of stearic acid?
The best HLB value obtained for stearic acid-capric/caprylic triglycerides was 13.8, achieved after combining these lipids with accepted surfactants (trioleate sorbitan and polysorbate 80 in the ratio of 10:90).
What are the two types of emulsifier?
There are two basic types of emulsions: oil-in-water (O/W) and water-in-oil (W/O). These emulsions are exactly what they sound like, as pictured below. In every emulsion there is a continuous phase that suspends the droplets of the other element which is called the dispersed phase.
What is HLB value?
Hydrophilic–lipophilic balance (HLB) is the balance of the size and strength of the hydrophilic and lipophilic moieties of a surfactant molecule. The HLB scale ranges from 0 to 20. Surfactants with HLB values in the 8 to 18 range are most commonly used in O/W emulsions (Griffin, 1949).
Is Cetostearyl alcohol an emulsifier?
Cetearyl alcohol is an emulsifier that thickens cosmetic products and makes them stable by holding water and oil together. It can also be used as a surfactant that foams and washes the hair and skin, and is known for its emollient properties.
What is HLB value of a surfactant?
Hydrophilic–lipophilic balance (HLB) is the balance of the size and strength of the hydrophilic and lipophilic moieties of a surfactant molecule. The HLB scale ranges from 0 to 20. In the range of 3.5 to 6.0, surfactants are more suitable for use in W/O emulsions.
Which one is a good example of an emulsifier?
Commonly used emulsifiers in modern food production include mustard, soy and egg lecithin, mono- and diglycerides, polysorbates, carrageenan, guar gum and canola oil.
What does HLB value indicate?
What is the HLB value of detergent?
The calculated HLB values from both methods can be used to predict the surfactant properties of a surfactant molecule, where a value from 1 to 3 indicates a antifoaming agent; a value from 3 to 6 indicates a W/O emulsifier; a value from 7 to 9 indicates a wetting agent; a value from 8 to 12 indicates an O/W emulsifier; …
What kind of emulsifier is oleyl alcohol?
POE (10) OLEYL ALCOHOL — MODERATE HLB EMULSIFIER FOR ESTERS & OILS. HLB 12.6 POE (23) OLEYL ALCOHOL — HYDROPHILIC EMULSIFIER & DETERGENT. USEFUL IN STABILIZING DISPERSIONS & SCOURING TEXTILE GOODS.
What are the HLB values in emulsifiers?
EMULSIFIER HLB Value ± 1 Water-In-Oil (W/O) Oil-In-Water (O/W) Non-ionic/Anionic… Calcium Stearoyl Lactylate (CSL) 5.1 Yes – Anionic Ceteareth-20 15.2 – Yes Non-ionic Cetearyl Glucoside 11 – Yes Non-ionic Cetearyl Alcohol 15.5 – Yes Non-ionic
What is the purpose of Poe ( 23 ) oleyl alcohol?
POE (23) OLEYL ALCOHOL — HYDROPHILIC EMULSIFIER & DETERGENT. USEFUL IN STABILIZING DISPERSIONS & SCOURING TEXTILE GOODS. HLB 15.8
How to calculate the HLB of a mixture?
HLB = 20 (1 – S/A) where S = saponification value and A = acidity value of the fatty acid. For example, for Polysorbate 20: HLB = 20 (1 – 45.5/276) = 16.7 When two or more emulsifiers are mixed together, the HLB value of the mixture can be easily calculated.