What is Carbopol gel used for?
Carbopol® (Carbomer) In the cosmetic industry, Carbopol is used as a thickener in lotions, creams and gels. It is also used to stabilize, suspend, and control the release of pharmaceutical products. At low concentrations, suspensions flow easily with a slippery feel.
How do you dissolve Carbopol gel?
Using moderate to vigorous agitation (800-1200 rpm), add the oil phase containing Carbopol® polymer to the water phase. The water phase should contain an appropriate neutralizing base. Continue to mix for 15-20 minutes until the Carbopol® polymer has swelled to produce a smooth emulsion.
What is the difference between carbomer and Carbopol?
Carbopol 934 is cross-linked with allyl sucrose and polymerized in benzene. Carbopol 71, 971, and 974 are cross-linked with allylpentaerythritol and polymerized in ethyl acetate. Carbomer polymers contain 56%–68% of carboxylic acid (–COOH) groups and 0.75%–2% of cross-linking agents.
What pH is Carbopol solution forming gel?
about 5.5
Carbopol is a polyacrylicacid (PAA) polymer, which shows a sol to gel transition in aqueous solution as the pH is raised above its pKa of about 5.5 [10].
Is Carbopol good for hair?
APPLICATION: :Carbomers is safe in a wide variety of product types including skin care, hair, nail, and makeup products, as well as dentifrices. It’s also best for ultrasound gel.
How do you use Carbomer 940?
1. Hydrating the Carbomer: As with gums, Carbomer 940 should be put into a dry container to which the amount of room temperature distilled/deionized water, in your formula, will be added. Carbomer 940 should then be allowed to swell/hydrate. The pH of the Carbomer gel will be about 3.3 prior to neutralization (see 4).
How do you make aloe vera gel with Carbopol?
ALOE VERA gel formulation with carbopol 940
- Blend aloevera pulp.
- Strain the juice.
- Boil it till sliminess is finished.
- Cool it ( room temps around 30 C) add carbolpol 940 powder.
- wait for around 6 hrs.
- Blend it again (to ensure proper homogenization)
- Add TEA drop by drop.
- NOW the problem is …
How is gel strength calculated?
Example: Calculate the pressure required to break circulation in the well with this data: Gel strength (10 or 30 minute) = 18 lb/100 ft. Drill string = 6⅝ × 5.965 in.
How is gel concentration calculated?
0.5% means 0.5 grams in 100 ml, so if you only need 50 ml, you need 0.5 g / 2 = 0.25 g agarose for a 50 ml gel solution….
- (initial concentration)(initial volume) = (final concentration)(final volume)
- (12x)(X ml) = (3x)(200 ml)
- X ml = (3x)(200 ml) / 12x.
- X ml = 50 ml of 12x TBE.