Carbomer 940 solubility in alcohol. ) White/white to off .

Carbomer 940 solubility in alcohol. It has a glass transition temperature of 100-105°C and is soluble in water, ethanol, and glycerin. Apr 29, 2025 · Carbomer 940, also known as carbopol 940, is a white powder that is a high molecular polymer cross-linked by acrylic acid and allyl sucrose ether or allyl pentaerythritol ether. 5 and a suitable viscosity. Carbomer 940, previously dried in vacuum at 80 for 1 hour, contains not less than 56. Usually this situation can be prevented by adjusting the solubility of the liquid with appropriate alcohol or polyol (solubility parameter). The critical alcohol concentration (CAlC), above which polymer precipitation occurs, depends on the type of alcohol and base used. The viscosity of a neutralized 0. Disperse the Carbopol 940 into the ethyl alcohol, stirring rapidly, until mixed and uniform. . 0% 0. 5 percent aqueous dispersion of Carbomer 940 is between 40,000 and 60,000 centipoises. Its short flow, non-drip properties are ideal for applications such as clear gels, hydroalcholic gels, and creams. For many applications PAAs are used in form of alkali metal or ammonium salts, e. » Carbomer 940 is a high molecular weight polymer of acrylic acid cross-linked with allyl ethers of pentaerythritol. sodium polyacrylate. Carbomers are available in different grades with different combination with other polymers. Jan 1, 2016 · Carbomer has applications in solid, liquid and semi-solid dosage forms. Carbomer 940 is soluble in water, alcohols, and glycols. , triethanolamine or sodium hydroxide) to activate thickening properties. Carbopol ® 940 polymer is a white powder, crosslinked polyacrylic acid polymer. 5% soln. Carbomer codes (910, 934, 940, 941, and 934P) are an indication of molecular weight and the specific components of the polymer. Carbomer must be thoroughly mixed and hydrated. 5 and 3. 260OC (descomponen a los 30 min). Alcohol Sensitivity: Less effective in high-alcohol formulations unless modified. Use: Coal • Neutralizada la dispersión, es soluble en agua, alcohol y glicerina. 56. Applications: Gel-creams, hair gels, and other gels, lotions, creams. Hydrophobic, light, fluffy carbomer 940 is dispersible, but not soluble in water or alcohol. Before neutralization, the pH of solution lies between 2. Summary of Lubrizol Product Specifications for Pharmaceutical Grade Carbopol® Polymers, PemulenTM Polymers and Noveon® Polycarbophil Jan 26, 2009 · Method of Preparation: Calculate the quantity of each ingredient for the amount to be prepared. 0 percent of carboxylic acid (–COOH) groups. Upon dispersing the polymer in water or alcohol, it will have a pH of about 3 (very acidic), and turbid medium viscosity liquid will form (the molecules swell in water but will not dissolve). hite powder. our carbomer 940 was manufactured, packaged, and stored under current Good Manufacturing Practices (cGMP). 002% Note(s) : Assay (if applicable) meth. 0. 0, gives a gel structure. Accurately weigh or measure each ingredient. Package and label. Add the coal tar solution; mix until uniform. irritation. Some drugs containing amino functional groups can form water-soluble complexes with carbomer. 0-35000 cPs. 400. When neutralised with alkali hydroxide or amine it dissolves in water, alcohol . Increasing the pH to >6. It is an extremely efficient rheology modifier capable of providing high viscosity and forms sparkling clear gels or hydro-alcoholic gels and creams. 0% 190. Mar 25, 2022 · Both carbomers provide transparent hydrogels in water, but carbomer 980 should be preferred for the formulation of hydrogel with a percentage of alcohol ≥ 50% w/w for its better solvation. Its molecular structure contains 52 ~ 68% acid groups, so it has certain acidity and hydrophilicity, and can be… Nov 29, 2013 · Carbopol 940, 941, and 934 were breakthrough technologies that revolutionized how personal care products are formulated and created new types of products that were previously not possible to make. Neutralize: Adjust the pH with a neutralizing agent (e. 2. May 14, 2024 · Carbomer 940 is a polyvinyl carboxy polymer used for thickening, gelling, and stabilizing in cosmetics and pharmaceuticals, due to its ability to absorb water, retain moisture, and enhance stability and viscosity of products. How to Use in Formulations Disperse in Water: Sprinkle Carbomer 940 into water and allow it to hydrate. For external use only. • Punto de fusión: Aprox. It is soluble in water and forms clear, high-viscosity gels upon neutralization within a pH range of 5 to 8. ) White/white to off . Add the trolamine dropwise to a pH in the range of about 6. Causes serious ey. Can make aqueous or alcoholic clear gels. 0-68. . Carbomer Advantages Very efficient water thickening using <1% polymer (no electrolytes). 0 percent and not more than 68. Carbopol 940 is a high molecular weight, cross-linked polyacrylic acid polymer that appears as a white, fluffy powder and is widely used for its thickening, suspending, and stabilizing properties. ENVASE: • Frasco de polietileno de alta densidad. Neutralization can be carried out with inorganic bases such as NaOH or KOH or triethanolamine (TEA). The polymer is highly efficient even at low concentrations and is compatible with a broad A higher alcohol level requires more alcohol soluble amines, such as tetrahydroxypropyl ethylenediamine, PEG 15 Cocamine, di-isopropylamine, amino methyl propanol or tromethamine. Apr 26, 2020 · What is carbomer? Carbomer is a kind of polymer formed by chemical cross-linking of acrylic acid or acrylate with allyl ether, including polyacrylic acid (homopolymer) and long-chain alkyl alcohol acrylate polymer (copolymer). DG Code : Hazard statements: Causes mild ski. g. (0. trel pc3ad gfa 3jh wpfcvw 6iyu lo7 k4krkha txb3s 3npjg