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Low Price High Quality Span-40 Sorbitan Monolaurate CAS26658-19-5 Chemical Auxiliary Agent

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Low Price High Quality Span-40 Sorbitan Monolaurate CAS26658-19-5 Chemical Auxiliary Agent

Name: Low Price High Quality Span-40 Sorbitan Monolaurate CAS26658-19-5 Chemical Auxiliary Agent
Brand: Jienuo
Rating: 5.0 (7 reviews)

Span 40, also known as sorbitan monopalmitate, is a non - ionic surfactant. It appears as a yellowish - brown wax - like solid at room temperature, with a mild fatty odor.

Functionally, it has excellent emulsifying properties, making it suitable for creating water - in - oil (W/O) emulsions. Span 40 can disperse in hot water and dissolve in hot oil and various organic solvents. With an HLB value of 6.7, it is highly effective in stabilizing emulsions. It also serves as a pigment dispersant in inks and oils. In industries like food, cosmetics, coatings, and pharmaceuticals, Span 40 plays a crucial role in formulation processes.

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Model:
Span-40
Brand:
Jienuo

Product Description

Span 40, also known as sorbitan monopalmitate, is a non - ionic surfactant. It appears as a yellowish - brown wax - like solid at room temperature, with a mild fatty odor.

Functionally, it has excellent emulsifying properties, making it suitable for creating water - in - oil (W/O) emulsions. Span 40 can disperse in hot water and dissolve in hot oil and various organic solvents. With an HLB value of 6.7, it is highly effective in stabilizing emulsions. It also serves as a pigment dispersant in inks and oils. In industries like food, cosmetics, coatings, and pharmaceuticals, Span 40 plays a crucial role in formulation processes.

Product Advantage

1、Superior Emulsifying Stability with Precise HLB Value

Span 40 boasts an HLB value of exactly 6.7, a key technical parameter that enables it to form highly stable water - in - oil (W/O) emulsions. In third - party tests, emulsions formulated with Span 40 maintained uniform consistency for over 180 days at 25°C, with no phase separation—surpassing industry standards by 30%. This stability ensures long - term product quality in cosmetics, pharmaceuticals, and food formulations, reducing the need for additional stabilizers.

2、Broad Solubility for Versatile Application

Unlike many surfactants, Span 40 exhibits excellent solubility in both hot oil (soluble at ≥50°C) and various organic solvents (e.g., ethanol, ethyl acetate), while also dispersing well in hot water. Lab data shows it achieves 98% solubility in soybean oil within 5 minutes at 60°C. This versatility allows it to be seamlessly integrated into diverse production processes, from oil - based cosmetic creams to pharmaceutical ointments, eliminating formulation limitations.

3、High Purity and Safety Compliance

Our Span 40 is produced through a refined purification process, resulting in a purity level of ≥99.5%—verified by gas chromatography (GC) analysis. It complies with global safety standards, including FDA (21 CFR 172.842) and EU Regulation (EC) No. 1333/2008. Acute oral toxicity tests (LD50 > 5000 mg/kg in rats) confirm its low toxicity, making it safe for use in food additives (e.g., ice cream stabilizers) and baby cosmetics, building strong trust among health - conscious clients.

4、Cost - Effective Performance with Low Dosage

Due to its high surface activity, Span 40 delivers optimal results at a low dosage. In cosmetic emulsion production, only 0.8 - 1.2% of Span 40 (based on total formulation weight) is required to achieve stable emulsification—30% less than competing sorbitan esters. This reduces raw material costs for manufacturers while maintaining product performance, offering a competitive edge in cost - sensitive markets.

Technical Parameters

Parameter	Specification
Appearance	Yellow waxy solid
Molecular Weight	402.57 g/mol (±5 g/mol)
HLB Value	6.7
Acid Value	≤ 10 mg KOH/g
Saponification Value	140~150 mg KOH/g
Water Content	≤ 2%
Hydroxyl Value	255~290 mg KOH/g
Melting point	45~47℃
Solubility	Soluble in oil and organic solvents, it is in a dispersed state in hot water.

Product Uses

1、Cosmetics Industry

In oil-based cosmetics like night creams and body lotions, Span 40 acts as a core emulsifier. Its HLB value of 6.7 stabilizes water-in-oil emulsions, preventing cream separation. It also enhances ingredient absorption, making products smoother, suitable for sensitive skin formulas.

2、Pharmaceutical Industry

It’s widely used in ointments and topical medicines. With low toxicity (LD50 > 5000 mg/kg in rats) and FDA compliance, it ensures safety. It helps disperse oil-soluble drugs evenly, boosting drug absorption and maintaining stable medicinal effects during storage.

3、Food Industry

As a food additive, it’s applied in ice cream and chocolate. Adding 0.8-1.2% Span 40 improves ice cream’s texture, preventing crystal formation. In chocolate, it aids fat dispersion, making it more glossy and easy to shape.

4、Coatings and Inks Industry

In oil-based coatings and inks, it works as a pigment dispersant. Its solubility in organic solvents ensures pigments spread evenly, reducing coating sedimentation and enhancing ink color uniformity, improving product quality.

Product Operate Guide

1. Pre-treatment: Heat Span 40 in a 50-60℃ environment until it melts (in a solid state), or directly take the liquid form product to avoid any clumping that may affect the effect.

2. Addition method: For oil-based systems (such as cosmetics, coatings), mix the oil phase first and stir evenly; for water-based related products (such as some foods), disperse them in hot water first and then mix with other components.

3. Precautions: Control the dosage according to the requirements (for food, 0.8-1.2%); maintain an appropriate stirring speed to ensure complete dissolution. Store the product sealed in a cool and dry place after use.

FAQ

1、Q: Can I adjust the dosage of Span 40 if the emulsion is unstable?

A: Yes. If the emulsion separates, slightly increase the dosage (e.g., from 0.8% to 1.0% in food) but don’t exceed 2% generally. Ensure full dissolution—insufficient mixing often causes instability, not just dosage.

2、Q: What if Span 40 doesn’t dissolve well in cold oil?

A: Heat the oil to 50-60°C first (matches Span 40’s melting point). Add melted Span 40 to the hot oil, then stir gently for 2-3 minutes. Cold oil inhibits dissolution, leading to clumps.

3、Q: How long can Span 40 be stored after opening?

A: It stays effective for 12 months if sealed tightly and stored in a cool, dry place (below 30°C, away from sunlight). Moisture or high temperature will reduce its emulsifying ability over time.

4、Q: Is Span 40 safe to mix with other surfactants like Tween 80?

A: Yes. Mixing with Tween 80 (HLB 15.0) adjusts the overall HLB value for water-in-oil or oil-in-water emulsions. Test small batches first to avoid compatibility issues in specific formulations.