For procurement managers, R&D scientists, and formulators in the chemical, cosmetic, and pharmaceutical industries, understanding the precise properties and applications of key ingredients is crucial. Carbomer 940, a versatile polyacrylic acid polymer, is one such ingredient that demands careful consideration. This article provides a comprehensive overview of Carbomer 940, detailing its characteristics, its broad range of applications, and the critical safety and sourcing aspects that B2B buyers need to be aware of. As a dedicated manufacturer and supplier, we aim to equip you with the knowledge to make informed decisions when you buy Carbomer 940.

What is Carbomer 940? Properties and Functions

Carbomer 940 is a synthetic, high molecular weight polymer known for its exceptional ability to thicken, suspend, and emulsify aqueous systems. It typically presents as a fine, white, fluffy powder. When dispersed in water and neutralized (usually with an alkaline substance like triethanolamine or sodium hydroxide), it swells dramatically to form a clear, viscous gel. This transformation is fundamental to its utility. Key properties include:

  • High Thickening Efficiency: Forms stable gels and increases viscosity significantly even at low concentrations.
  • Excellent Emulsion Stabilization: Prevents phase separation in oil-in-water and water-in-oil emulsions.
  • Good Suspension Capabilities: Keeps insoluble particles evenly dispersed in formulations.
  • Bioadhesive Properties: Adheres to biological surfaces, useful in pharmaceutical applications.
  • High Clarity: Produces clear gels, desirable for many cosmetic and pharmaceutical products.

These properties make Carbomer 940 an essential ingredient for formulators seeking to control rheology and enhance product stability.

Diverse Applications Across Industries

The versatility of Carbomer 940 allows it to be used across multiple sectors:

  • Cosmetics and Personal Care: It is a staple in creams, lotions, gels, serums, hair styling products, shampoos, and hand sanitizers, providing desired texture, stability, and sensory feel.
  • Pharmaceuticals: Used as an excipient in topical medications, eye drops, oral suspensions, and controlled-release drug delivery systems, enhancing drug bioavailability and retention.
  • Industrial Applications: Its thickening and stabilizing properties can be beneficial in paints, inks, and coatings, though its primary markets remain cosmetics and pharmaceuticals.

Understanding the specific grade and CAS number (9007-20-9) is crucial for selecting the right Carbomer 940 for your application.

Safety Considerations and Sourcing from a Reliable Supplier

Carbomer 940 is generally considered safe and non-irritating for topical use when used at recommended concentrations. However, like any chemical ingredient, it is important to handle it with care and follow safety guidelines. Potential impurities, such as residual solvents from the manufacturing process, are a critical consideration, especially for pharmaceutical grades. Buyers should always inquire about the purity levels and safety certifications when they buy Carbomer 940. Establishing a relationship with a reputable manufacturer or supplier in China, like us, ensures you receive products that meet strict quality control standards and regulatory requirements. We are committed to providing high-quality Carbomer 940 at competitive prices, backed by comprehensive product documentation.

By prioritizing quality, understanding applications, and working with trusted partners, businesses can effectively leverage Carbomer 940 to create superior products. Contact us today to discuss your requirements and explore our premium Carbomer 940 offerings.