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Send EmailBetaine, Cocamidopropyl Betaine, CAPB, 61789-40-0
Cocamidopropyl Betaine (CAPB) including its key properties and usage:
🧪 Product Features
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CAS Number: 61789-40-0
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INCI Name: Cocamidopropyl Betaine
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Molecular Formula: C₁₉H₃₈N₂O₃
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Molecular Weight: 342.52 g/mol
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Appearance: Clear to pale yellow liquid
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pH (10% aqueous solution): 5.0–7.0
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Density (25 °C): ~1.05 g/cm³
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Freezing Point: –10 °C
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Boiling Point: ~100 °C
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Flash Point (1% solution): >94 °C
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Cloud Point: –3 °C
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Active Matter Content: Varies by grade (e.g., CAB-35: 28–32%, CAB-45: 38–42%)
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Classification: Amphoteric surfactant
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Solubility: Soluble in water; compatible with most surfactants
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Antimicrobial Properties: Effective against bacteria and fungi such as Staphylococcus aureus, Candida albicans, and Bacillus subtilis
🧼 Applications
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Personal Care Products: Used in shampoos, body washes, facial cleansers, bubble baths, and baby care formulas due to its gentle cleansing and low-irritation profile.
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Household Detergents: Included in hand soaps, dishwashing liquids, and laundry detergents to improve foam richness and enhance viscosity.
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Industrial and Cosmetic Formulations: Acts as a secondary surfactant and synergist, boosting foam stability and reducing irritation when combined with SLES, CDEA, or other surfactants.
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Specialty Products: Incorporated into transparent body washes, pearlescent shampoos, petal suspension shower gels, and moisturizing cleansers.
Cocamidopropyl Betaine, or CAB/CAPB for short, is a widely-used amphoteric surfactant. It’s a mild coconut-derived active ingredient, increasingly used as an emulsifier, thickener, and foaming agent in various household detergents, personal care products, and cosmetics, especially in gentle baby care products, such as baby shampoos and baby bubble baths.
Thanks to its mildness and compatibility with other surfactants, Cocamidopropyl Betaine has been a popular choice as a primary or secondary surfactant in an extensive range of formulas. CAPB can have excellent synergistic effects with other surfactants in formulas, to achieve higher viscosity, richer foam, and lower irritation to the skin and eyes.
Like other betaine-based amphoteric surfactants, CAPB is effectively anti-microbial, being effective against various common bacteria and fungi such as Staphylococcus aureus, Streptococcus pyogenes, Bacillus subtilis, Candida albicans, and Pityrosporum ovale.
| Items | Standards CAB-35 |
Standards CAB-45 |
|---|---|---|
|
Classification |
Amphoteric surfactant |
Amphoteric surfactant |
|
Appearance (25℃) |
Colorless to light yellowish liquid |
Colorless to light yellowish liquid |
|
Density, g/ml (25°C) |
1.05 |
1.05 |
|
Color (Hazen) |
≤100 |
≤100 |
|
Cloud point, ℃(1% water solution) |
-3 |
-3 |
|
Flash Point, °C(1% water solution) |
>94 |
>94 |
|
Freeze Point, °C |
-10 |
-10 |
|
Active matter content, % |
28.0～32.0 |
38.0～42.0 |
|
Solid content, % |
33.0～37.0 |
43.0～47.0 |
|
pH value (1% aqueous solution) |
4.0~7.0 |
5.0~7.0 |
|
Sodium chloride content, % |
≤6.0 |
≤7.0 |
|
Free amine content, % |
≤0.5 |
≤0.5 |
Affordable Anti-Bacterial Hand Soap Liquid Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
SLES 70% |
3.5% |
Primary Surfactant |
|
CAB 35% |
3.0% |
Secondary Surfactant |
|
CDEA 85% |
1% |
Secondary Surfactant |
|
PCMX |
0.2% |
Antiseptic agent |
|
EDTA-2Na |
0.1% |
Chelating agent |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Salt(NaCl) |
q.s. to achieve desired vicosity |
Thickener |
|
Citric acid |
q.s. to achieve desired pH(7-8) |
pH Adjuster |
Ultra Grease-cutting Dishwashing Liquid Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
Caustic soda |
1.0% |
Neutralizer |
|
LABSA 96% |
7.0% |
Primary Surfactant |
|
SLES 70% |
8.0% |
Primary Surfactant |
|
CAB 35% |
3.0% |
Secondary Surfactant |
|
EDTA-2Na |
0.5% |
Chelating agent |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Salt(NaCl) |
q.s. to achieve desired vicosity |
Thickener |
|
Citric acid |
q.s. to achieve desired pH(7-8) |
pH Adjuster |
Ultra-concentrated Laundry Detergent Liquid Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
Caustic soda |
0.4% |
Neutralizer |
|
LABSA 96% |
3.0% |
Primary Surfactant |
|
SLES 70% |
14.0% |
Primary Surfactant |
|
CAB 35% |
10.0 % |
Secondary Surfactant |
|
OP-10 |
4.0 % |
Secondary Surfactant |
|
AEO-9 |
4.0 % |
Secondary Surfactant |
|
EDTA-2Na |
0.2% |
Chelating agent |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Salt(NaCl) |
q.s. to achieve desired vicosity |
Thickener |
|
Citric acid |
q.s. to achieve desired pH(7-8) |
pH Adjuster |
Pearlescent Conditioning Shampoo Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
Polyquaternium-10 (PQ-10) |
0.1% |
Conditioner |
|
Dimethicone |
3.0% |
Conditioner |
|
Guar Hydroxypropyltrimonium Chloride |
0.25% |
Conditioner |
|
SLES 70% |
14.0% |
Primary Surfactant |
|
AESA 70% |
4.0% |
Primary Surfactant |
|
EGDS |
1.2% |
Secondly Surfactant, Pearlescing agent, Emulsifier |
|
CDEA 85% |
1.0% |
Secondary Surfactant |
|
CAB 35% |
4.0% |
Secondary Surfactant |
|
CMEA 82% |
1.0% |
Secondary Surfactant |
|
Cetearyl Alcohol |
0.5% |
Opaquer, Thickener |
|
EDTA-2Na |
0.1% |
Chelating agent |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Citric acid |
q.s. to achieve desired pH(5.0-7.0) |
pH Adjuster |
Transparent Moisturizing Body Wash Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
Glycerine |
1.0% |
Moisturizer |
|
Trehalose |
1.0% |
Moisturizer |
|
SLES 70% |
12.0% |
Primary Surfactant |
|
K12 Needle |
2.0% |
Secondly Surfactant |
|
CAB 35% |
4.0% |
Secondary Surfactant |
|
CDEA 85% |
2.0% |
Secondary Surfactant |
|
PEG-7 Glyceryl Cocoate |
1.0% |
Softening agent |
|
EDTA-2Na |
0.1% |
Chelating agent |
|
Salt(NaCl) |
q.s. to achieve desired vicosity |
Thickener |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Citric acid |
q.s. to achieve desired pH(5.0-7.0) |
pH Adjuster |
Suspending Petal Shower Gel Formula
| Ingredient | Wt, % (as is) | Function |
|---|---|---|
|
SLES 70% |
16.0% |
Primary Surfactant |
|
CAB 35% |
5.0% |
Secondary Surfactant |
|
CDEA 85% |
2.0% |
Secondary Surfactant |
|
Copolymer SF-1 |
7.0% |
Suspending agent |
|
EDTA-2Na |
0.1% |
Chelating agent |
|
Salt(NaCl) |
q.s. to achieve desired vicosity |
Thickener |
|
Fragrance, Dye, Preservatives |
q.s. |
Additives |
|
Deionized water |
q.s. to 100% |
Solvent, Carrier |
|
Caustic Soda Solution 50% |
q.s. to achieve desired pH(5.0-7.0) |
pH Adjuster |
|
Flower Petal |
q.s. |
Embellishment |
