Sodium N-Lauroylsarcosinate CAS 137-16-6

Product Information: Sodium N-Lauroylsarcosinate (Aqueous Solution)

1. Product Overview

Product Name: Sodium N-Lauroylsarcosinate Solution
Synonyms: Sodium Lauroyl Sarcosinate, Sarkosyl NL, N-Lauroylsarcosine Sodium Salt, N-Dodecanoyl-N-methylglycine sodium salt
CAS Number: 137-16-6
EC Number: 205-281-5
Molecular Formula: C₁₅H₂₈NNaO₃
Molecular Weight: 293.38 g/mol (active matter)
Typical Concentration: 30% or 40% active content in aqueous solution (customizable)

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2. Physical & Chemical Properties (for liquid form)

Property	Specification
Appearance	Colorless to light yellow clear liquid
Odor	Characteristic mild odor
Active Content	30.0 – 32.0% (or 38.0 – 42.0% for high‑concentration grade)
pH (10% solution)	7.5 – 8.5
Density (20°C)	~1.03 – 1.05 g/mL (depending on concentration)
Viscosity (25°C)	Low viscosity, typically < 100 cP
Freeze Point	Approx. –5 °C (for 30% solution)
Solubility	Miscible with water in all proportions; soluble in ethanol and glycols
Surface Tension (0.1%)	~30 – 35 mN/m
Foam Height (Ross‑Miles)	Good foaming, stable in hard water
Shelf Life	2 years in original sealed container
Storage Conditions	Store at 5–35 °C, avoid freezing, keep away from strong acids/oxidizers

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3. Applications

This anionic surfactant, derived from natural sarcosine, offers excellent mildness, high foaming power, and superior lime‑soap dispersion. It is widely used in:

Sector	Typical Uses
Personal Care	Shampoos, baby washes, facial cleansers, shower gels, micellar waters
Oral Care	Toothpastes (plaque dispersion, active ingredient suspension)
Shaving Products	Shaving foams and gels (creamy rich lather)
Household Cleaners	Dishwashing liquids, multi‑purpose cleaners
Industrial Applications	Wetting agents, emulsifiers in polymerization, textile processing, corrosion inhibition
Biochemical Research	Cell lysis and protein solubilization (as Sarkosyl)

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4. Advantages

• Mild & skin‑friendly – low irritation, suitable for sensitive skin and baby products

• Excellent hard water tolerance – effective even in high‑mineral water

• Synergistic – works well with other surfactants (anionic, non‑ionic, amphoteric)

• Biodegradable – environmentally acceptable

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5. Safety & Handling

• Classification: Not classified as dangerous under normal transport (for aqueous solution with < 60% active), but may cause eye/skin irritation.

• Hazard statements:

  • H315 – Causes skin irritation

  • H319 – Causes serious eye irritation

• Precautionary statements: P264, P280, P302+P352, P305+P351+P338

• Transport: Not regulated as dangerous goods for 30% solution (check local regulations for concentrated >50%)

• Toxicity (acute oral, rat): > 2000 mg/kg (low toxicity)

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6. Available Grades & Packing

Grade	Active %	Appearance	Packaging
Cosmetic Grade	30%	Clear, pale yellow liquid	25 kg, 200 kg drums
Cosmetic Grade	40%	Slightly viscous liquid	25 kg, 200 kg drums
Industrial Grade	30%	Light yellow liquid	200 kg drums, IBC tote
Research Grade (solid)	≥98%	White powder (on request)	100 g, 1 kg, 25 kg

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7. Note

• This datasheet refers to the aqueous solution form, which is the most common commercial supply.

• Solid powder is also available upon special request (appearance: white to off‑white crystalline powder, with different physical properties).

• For custom concentrations or formulations, please contact our technical team.