Polyethylene Glycol 6000(PEG-6000)

Polyethylene Glycol 6000 (PEG-6000) is a polymer of ethylene oxide, a type of polyethylene glycol (PEG) with an average molecular weight of 6000 g/mol. PEGs are available in various molecular weights, with PEG-6000 being one of the higher molecular weight varieties.

Applications of Polyethylene Glycol 6000

  1. Pharmaceuticals: Used as a base for ointments, creams, and as a solvent or stabilizer in drug formulations.
  2. Cosmetics: Functions as a humectant, lubricant, and thickener in skincare products.
  3. Industrial Uses: Serves as a lubricant, dispersing agent, and in the production of plastic films and sheets.
  4. Biotechnology: Employed in processes like protein purification and in cryopreservation.

Properties of PEG-6000:

  • Molecular Formula: H(OCH₂CH₂)nOH
  • Molecular Weight: Approximately 6000 g/mol
  • Appearance: White, waxy solid or flakes
  • Solubility: Soluble in water and various organic solvents (e.g., ethanol, acetone)

Specific Uses of PEG-6000

  1. Pharmaceuticals:
    –  Tablet Coating and Binding: PEG-6000 is often used in solid dosage forms like tablets and capsules. It acts as a binder, helping to hold the tablet components together, and as a coating agent to improve the appearance and control the release of the active ingredient.
    –  Drug Solubility and Stability: It can enhance the solubility of poorly water-soluble drugs and stabilize formulations by preventing the crystallization of drug substances.
    –  Suppositories: Due to its solid state at room temperature and ability to melt at body temperature, PEG-6000 is used in the production of suppositories, ensuring proper release of the active ingredients.
  2. Cosmetics:
    –  Moisturizers and Lotions: PEG-6000 acts as a humectant, drawing moisture to the skin and enhancing hydration. It’s also used as a thickening agent in lotions, creams, and other skincare products to improve texture and consistency.
    –  Hair Care Products: In shampoos and conditioners, PEG-6000 helps in thickening the product, providing a smoother application, and acting as a conditioning agent.
  3. Industrial Uses:
    –  Plastic Production: PEG-6000 is used as a plasticizer in the production of plastics and resins, improving flexibility and workability.
    –  Lubricants: It serves as a lubricant in various mechanical and industrial applications, reducing friction between surfaces and improving the lifespan of machinery parts.
    –  Paints and Coatings: In the manufacturing of paints and varnishes, PEG-6000 is used to control viscosity and improve the spreadability of the product.
  4. Biotechnology:
    –  Protein Purification:  PEG-6000 is employed in the purification of proteins through a process called “PEG precipitation,” where it helps in selectively precipitating proteins from solution.
    –  Cryopreservation: It is used as a cryoprotectant to protect biological tissues and cells during freezing, preventing ice crystal formation that can damage cell structure.

Polyethylene Glycol 6000

Safety Guidelines

  1. General Safety:
    – PEG-6000 is generally considered non-toxic and safe for use in pharmaceuticals, cosmetics, and food products.
    – It is non-irritating and non-sensitizing in most cases, though high concentrations or prolonged exposure can lead to skin irritation, particularly in individuals with sensitive skin.
  2. Handling and Storage:
    – Store in a cool, dry place away from direct sunlight and moisture to maintain its stability and prevent degradation.
    – Use personal protective equipment (gloves, goggles) when handling large quantities to avoid prolonged skin or eye contact.
  3. Environmental Impact:
    – PEG-6000 is biodegradable, and its environmental impact is relatively low. However, proper disposal according to local regulations should be followed to minimize any potential environmental harm.
  4. Regulatory Considerations:
    – PEG-6000 is approved for use by various regulatory bodies, including the FDA, for specific applications in food, cosmetics, and pharmaceuticals.
    – It is important to adhere to the concentration limits set by these regulatory authorities to ensure safety and efficacy in its intended use.

Technical Data Sheet PEG-6000

TEST STANDARD RESULT Unit Ref
Description practically odortess and tasteless , white ,waxy, plastic material having a consistency similar to beeswax, or as creamy white flakes, beads, or powders Camplies USP43-NF38
Solubility freely soluble in water, soluble in acetone, alcohol, chloroforrn .ethylene glycol monomethyl ether , ethyl acetate, and in toluene; insoluble in ether and in hexane Camplies USP43-NF38
Color of Solution, 5g/50ml of Water Slightly Hazy Slightly Hazy USP43-NF38
Viscosity @98.9 250-390 312.6 Cst USP43-NF38
PH, 5% Solution in Water 4.5-7.5 6.4 USP43-NF38
Residue on ignition Max 0.1 0.05 %wt USP43-NF38
Assayn(Averege Molecular Weight) 5400-6600 62.36 g/mol USP43-NF38
Ethylene Oxide @ 1.4-Dioxane Ethylene Oxide NMT 10.0 0.9 mg/g USP43-NF38
1.4-Dioxane     NMT 10.0 2 USP43-NF38
Residual solvents Defined  as Organic   volatile chemicals Not Used ppm USP43-NF38

 

Polyethylene Glycol 6000

Technical Data Sheet PEG-6000