Factory Supply Span-80 Chemical Auxiliary Agent CAS1338-43-8 Sorbitan Tristearate

Span-80 is a lipophilic non-ionic surfactant derived from sorbitan and oleic acid. It exhibits good emulsifying, dispersing, and stabilizing properties, particularly effective in water-in-oil emulsions.

Widely used in food, cosmetics, pharmaceuticals, and industrial fields, it helps blend oil and water phases, enhances product stability, and improves texture, functioning well under moderate temperature and pH conditions.

Product Advantage

1. Excellent Emulsifying Power: It forms stable water-in-oil emulsions with a particle size of 1-5μm, maintaining stability for over 72 hours at room temperature. This reduces phase separation in products like food sauces and cosmetic creams.

2. Strong Thermal Stability: Remains effective at 60-80℃, with only 5% loss of activity after 4 hours of heating. Suitable for high-temperature processing in pharmaceutical and industrial emulsification.

3. Broad Compatibility: Compatible with 90% of anionic, cationic, and non-ionic surfactants (tested in 50+ formulations). Enables flexible blending in multi-component systems like pesticide emulsions.

4. High Safety Profile: Complies with FDA and EU food contact standards (CAS 1338-43-8). LD50 > 10g/kg in animal tests, safe for use in food additives and skincare products.

Technical Parameters

Product Uses

1. Food Industry: Used in margarine, ice cream, and salad dressings as an emulsifier. It prevents oil-water separation, improving texture and shelf life. Added at 0.5%-2% of total weight, compliant with food safety standards.

2. Cosmetics: Found in creams, lotions, and lipsticks. Helps blend oils and water, enhancing product smoothness and stability. Works well with other surfactants in skincare formulations.

3. Pharmaceuticals: Aids in forming stable emulsions for oral and topical drugs. Improves drug solubility and absorption, often used in vitamin and antibiotic formulations.

Pesticides: Formulates water-in-oil emulsions for pesticides, enhancing adhesion to crops and reducing evaporation, boosting effectiveness in agricultural applications.

Product Operate Guide

Use Span-80 by adding 0.5%-5% to the oil phase, heat to 50-60℃, stir until dissolved. Mix with water phase slowly while stirring to form emulsion. Avoid direct contact with strong acids. Seal and store in a cool place after use. Stir well before reuse if layered.

FAQ

1. What's the recommended dosage of Span-80?

Typically 0.5%-5% of total formulation, varying by use. For food, 0.5%-2%; for pesticides, 2%-5%. Test a small batch first to optimize.

2. How to store Span-80 properly?

Seal tightly, store in a cool (15-30℃), dry place away from sunlight. It remains stable for 2 years; avoid mixing with strong oxidizers.

3. Can Span-80 mix with water directly?

No, it’s oil-soluble. Disperse in oil phase first, then add water while stirring to form emulsion. Direct water mixing may cause clumping.