Sodium Lauroamphoacetate

Product Details

CasNo： 156028-14-7

MF： C18H34N2O3.Na

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Basic Information

• English Name: Sodium Lauroamphoacetate; Sodium Lauryl Amphoacetate; SLAA
• Chinese Name: 月桂酰两性基乙酸钠；月桂基两性醋酸钠
• CAS Number: 156028-14-7
• Molecular Formula: C16​H30​NNaO3​ (primary structure, based on lauryl chain); C18​H34​N2​NaO3​ (minor homologs may exist due to raw material chain distribution)
• Chemical Structure: C12​H25​N(CH2​COONa)2​ (hydrophobic lauryl chain + two hydrophilic sodium carboxylate groups)
• Average Molecular Weight: Approximately 323.4 g/mol (for C16​H30​NNaO3​)
• Common Synonyms: Lauryl Amphoacetate Sodium Salt; SLAA; Sodium Lauryliminodiacetate

2. Physical and Chemical Properties

3. Key Performance Characteristics

Ultra-Mildness for Sensitive Skin & Eyes
SLAA’s amphoteric charge adapts to skin pH, minimizing interaction with skin proteins and lipid barriers—avoiding over-degreasing or irritation. It scores ≤0.3 (out of 10) in skin irritation tests (OECD 404) and is classified as "tear-free" in eye irritation tests (OECD 405). When compounded with anionic surfactants (e.g., SLES), it reduces irritation by 45%–55% while preserving cleansing power, making it ideal for baby care and post-sun repair products.

Rich, Long-Lasting Foaming
It produces fine, dense foam with excellent stability:

• Foam height: ≥135 mm (Ross-Miles test, 0.5% aqueous solution at 25°C).
• Foam half-life: >6.5 minutes (resists collapse in hard water or when exposed to sebum).
  This foaming profile enhances user experience—avoiding "weak foam" or "quick-collapse" issues common in other mild surfactants (e.g., some betaines).

1. Broad Compatibility
   SLAA works seamlessly with all major surfactant types and additives:

• Anionics (SLES, LAS): Reduces their harshness and boosts foam stability.
• Cationics (Polyquaternium-7): No precipitation, enhancing hair smoothness in shampoos.
• Nonionics (Cocamide MEA): Improves low-temperature solubility and formulation homogeneity.
• Actives/Preservatives: Compatible with hyaluronic acid, niacinamide, and phenoxyethanol (no degradation or efficacy loss).

1. Environmental & Safety Advantages
   It exhibits excellent biodegradability: 28-day biodegradation rate ≥97% (OECD 301B), meeting global eco-standards (e.g., EU ECOLABEL). It is also free of parabens, sulfates, and phthalates—aligning with consumer demand for "clean beauty" and sustainable products.

4. Application Fields & Recommended Dosages

5. Safety & Usage Guidelines

• Usage Precautions:
  • Dilution: Mix with deionized water at 20–40°C (avoid high temperatures >90°C to prevent degradation). Stir at 300–500 rpm to avoid excessive foam.
  • pH Adjustment: For acid-sensitive formulations (e.g., pH 5.5–6.5), use citric acid to lower pH gradually (avoid rapid adjustments).
  • Salt Addition: Add NaCl (0.5%–2%) to increase viscosity for gel cleansers; avoid over-adding (>5%) to prevent turbidity.
• Safety Protection:
  • Skin Contact: Concentrated SLAA (≥40% active) may cause mild dryness—wear nitrile gloves during handling; rinse with water if contact occurs.
  • Eye Contact: Flush with normal saline for 15 minutes if splashed into eyes; seek medical help if irritation persists.
  • Oral Toxicity: Acute oral LD₅₀ (rat) >5,000 mg/kg (low toxicity); do not ingest.
• Regulatory Compliance:
  • Complies with EU CosIng, US FDA (21 CFR), and China’s Cosmetic Safety Technical Specification (2024 Edition).
  • Meets "clean beauty" standards (free of sulfates, parabens, and phthalates) for global premium personal care markets.

6. Packaging & Storage

1. Packaging Specifications

• Standard Grades: 200 L HDPE plastic drums (net weight 200 kg/drum) for bulk orders; 50 L HDPE plastic buckets (net weight 50 kg/bucket) for small-batch purchases.
• Sample Sizes: 100 mL/500 mL HDPE bottles (for R&D and formulation testing).
• Sealing: All packages use double-sealed lids (inner plug + outer cap) to prevent leakage and microbial contamination.

2. Storage Conditions

• Store in a cool, dry, well-ventilated warehouse (temperature 5–35°C, relative humidity <75%); avoid direct sunlight and high temperatures (>40°C).
• Keep sealed after opening to prevent moisture absorption or contamination.
• Shelf Life: 24 months for unopened packages; use opened packages within 3 months to maintain stability.