Cocamidopropyl Betaine, CAPB​​​​​​, CAB-35, CAB-45, 61789-40-0

Cocamidopropyl Betaine, CAPB​​​​​​, CAB-35, CAB-45, 61789-40-0

COCAMIDOPROPYL BETAINE (CAPB)

1. PRODUCT DEFINITION AND CHEMICAL IDENTITY

Note: Cocamidopropyl Betaine is a high-foaming, mild amphoteric surfactant derived from coconut oil. It exhibits both anionic and cationic properties, making it effective over a wide pH range. Due to its exceptional mildness, excellent foam boosting, and viscosity-building properties, it is a primary ingredient in baby shampoos, shower gels, facial cleansers, and other sensitive skin personal care products.

2. PHYSICAL AND CHEMICAL PROPERTIES (Typical for 30-35% Active Grade)

3. TYPICAL TECHNICAL SPECIFICATIONS (by Common Grade)

4. FUNCTIONAL PROPERTIES AND MODE OF ACTION

• Mild, High-Foaming Primary or Secondary Surfactant: As an amphoteric surfactant, it is exceptionally mild and generates a rich, dense, and creamy foam. It is a key ingredient for "tear-free" baby shampoos and products for sensitive skin.

• Foam Booster and Stabilizer: In combination with anionic surfactants (like SLES or LABSA), it significantly enhances both the quantity and the stability of the foam. It adds a creamy, luxurious texture that is difficult to achieve with anionic surfactants alone.

• Viscosity Builder: When used with anionic surfactants in the presence of salt (NaCl), CAPB dramatically increases the viscosity of the formulation, helping to create the desired gel-like consistency for shampoos and body washes. It also helps to mitigate the viscosity reduction caused by high fragrance or oil loads.

• Skin and Hair Conditioner: It leaves the skin feeling soft and smooth and helps to reduce the static charge on hair, improving wet and dry combability.

• Broad pH Stability: It maintains its surfactant properties effectively in both mildly acidic and alkaline formulations.

5. ANTIMICROBIAL EFFICACY

CAPB has been shown to exhibit antimicrobial activity against the following common microorganisms:

6. ALTERNATIVE NAMES AND SYNONYMS

7. SECTORAL APPLICATIONS, SUITABILITY, AND EXAMPLE FORMULATIONS

Example Formulations (as provided):

• Economical Antibacterial Hand Soap: CAPB-35 (3.0%), SLES-70 (3.5%), CDEA-85 (1.0%), PCMX (0.2%), and q.s. water, salt, and citric acid to pH 7-8.

• Degreasing Dishwashing Liquid: LABSA-96 (7.0%), SLES-70 (8.0%), CAPB-35 (3.0%), Caustic Soda (1.0%), and q.s. water, salt, and citric acid.

• Concentrated Laundry Detergent: SLES-70 (14.0%), CAPB-35 (10.0%), LABSA-96 (3.0%), OP-10 (4.0%), AEO-9 (4.0%), and q.s. water, salt, and citric acid.

8. ADVANTAGES AND DISADVANTAGES

9. SAFETY, STORAGE, AND REGULATORY INFORMATION

• GHS Classification: Not classified as a hazardous substance or mixture. It is a non-irritant at use concentrations.

• Safety Profile: Extremely mild. The Cosmetic Ingredient Review (CIR) panel has confirmed its safety for use in cosmetic and personal care products. It is not a significant eye irritant, making it suitable for "tear-free" formulations.

• Storage:

  • Store in a cool (5–30 °C), dry, and well-ventilated area in tightly sealed containers.

  • Use polyethylene (PE), polypropylene (PP), or HDPE containers. Avoid non-stainless steel tanks.

• Freezing: The product may be affected by freeze-thaw cycles. If it freezes, it should be gently warmed and stirred to return to a homogeneous liquid; its performance will not be affected.

• Shelf Life: 12–24 months under proper storage conditions.

10. QUICK REFERENCE TABLE