Do you know about CAPB35?

Q1: What is CAPB35 and what are its core properties?

CAPB35 refers to Cocoamidopropyl Betaine, a zwitterionic surfactant derived from natural coconut oil with CAS No. 61789-40-0. Its molecular structure contains both positive and negative charges, presenting excellent electrical neutrality at a pH range of 6–8. Combining the advantages of anionic and cationic surfactants, it is a highly versatile mild foaming, thickening and conditioning agent widely used in daily chemical formulations.

Q2: What does the suffix “35” in CAPB35 mean?

The number “35” is a product specification mark, indicating that the active substance content is 35%±1% (tested in accordance with national standards). As the mainstream specification in the daily chemical industry, this concentration perfectly balances transportation cost, storage stability and formulation convenience, and can be directly used in compounding without dilution.

Q3: What are the core advantages of CAPB35 compared with ordinary betaine?

Compared with conventional betaine products, CAPB35 features better comprehensive performance and higher compatibility with high-end daily chemical formulas, with three core advantages:

1. Superior foaming performance: Made of high-quality coconut fatty acid raw materials, it produces fine, dense, rich and long-lasting foam and delivers an excellent skin feel during and after use;

2. Excellent low-temperature stability: It maintains stable performance below 5℃ without delamination or solidification, adapting to storage environments in most regions;

3. Wide compatibility: It can be perfectly compounded with anionic surfactants such as AES and SLS as well as nonionic surfactants with remarkable synergistic effects, effectively optimizing the overall formula system.

Q4: Are there standardized test criteria for the foaming performance of CAPB35? What are the specific data?

The product is strictly tested in accordance with the national standard GB/T 13173-2008 for surfactants, with outstanding core foaming indicators:

1. Initial foam height: ≥165mm (0.25% aqueous solution at 40℃);

2. Foam durability: 5-minute foam retention rate ≥85%, resisting foam fading and collapse;

3. Mildness enhancement: It significantly reduces the irritation index of other surfactants by 40%-60% and improves the mildness of the formula system.

Q5: What is the recommended dosage of CAPB35 in common hair and body care products?

Based on mature daily chemical application experience, the standard dosage for different scenarios is listed below, which can be slightly adjusted according to product functional requirements:

1. Shampoo: 3%-8%;

2. Body wash: 4%-10%;

3. Hand sanitizer: 2%-5%;

4. Facial cleanser: 1.5%-4%;

It is necessary to maintain electrolyte balance in the formula to avoid adverse effects on product viscosity and stability.

Q6: How to solve the problem of viscosity reduction at high temperature?

Viscosity drop at high temperature is a common issue in CAPB-based formulas. Three mature and effective solutions are available for single or combined use:

1. Add 0.5%-1% sodium chloride to adjust system viscosity;

2. Compound with 1%-2% Cocamide MEA to improve thickening stability;

3. Control the system pH value within the optimal range of 5.5-6.5 to stabilize the overall viscosity performance.

Q7: What are the core quality control indicators and quality standards of CAPB35?

The product adopts high-standard quality control specifications for daily chemical raw materials with seven strictly controlled core indicators, meeting the requirements of mid-to-high-end personal care formulations:

1. Free amine content: ≤100ppm, reducing skin irritation risks;

2. Dioxane residue: ＜10ppm, fully compliant with safety regulations;

3. Iodine value: ≤5gI₂/100g, ensuring high raw material purity;

4. Color (Hazen): ≤50, presenting a clear and transparent appearance without affecting finished product aesthetics.

Q8: What are the correct storage conditions and shelf life of CAPB35?

1. Storage containers: Galvanized iron drums or PE plastic drums are recommended;

2. Environmental requirements: Keep away from oxidants and flammable and explosive materials, and avoid mixed storage;

3. Optimal storage temperature: 10℃–30℃ in a cool and dry place;

4. Service life: The shelf life of unopened and sealed products is 12 months. It is recommended to use up within 6 months after opening to ensure stable performance.

Q9: Does CAPB35 comply with international cosmetic safety and environmental regulations?

The product features complete regulatory compliance and is eligible for sales in major global markets. It has obtained multiple authoritative certifications, including ECOCERT Organic Certification, EU Cosmetics Regulation (EC) No 1223/2009 compliance, and US EPA Safer Choice Certification. Non-toxic, mild and readily biodegradable, it is suitable for maternal, infant and sensitive skin care products.

Q10: Is low-temperature crystallization or turbidity a quality defect? How to handle it correctly?

Crystallization and slight turbidity are normal physical phenomena rather than quality problems, which will not affect the performance and safety of the product. The correct handling methods are as follows:

1. Heat the material to 40℃ via water bath and stir thoroughly;

2. Avoid local overheating; temperature above 60℃ will cause degradation of active ingredients and performance failure;

3. Homogenize the material after heating and stirring to restore a clear liquid state for normal formulation use.