Sorbitan Mono Palmitate (SMP)

Overview

Sorbitan Mono Palmitate (SMP), chemically known as Sorbitan Palmitate (INCI name) and identified by CAS Number 26266-57-9, is a highly versatile non-ionic surfactant widely recognized for its exceptional emulsifying, stabilizing, and dispersing properties. As a key ester formed from the polyol sorbitol and the saturated fatty acid palmitic acid, SMP exhibits a distinct lipophilic character, making it an indispensable ingredient in formulations requiring robust oil-in-water or water-in-oil emulsion stability. Its amphiphilic nature, with an approximate HLB value of 6.7, enables it to reduce interfacial tension effectively, promoting homogenous mixtures in diverse industrial applications.

Our industrial-grade Sorbitan Mono Palmitate is meticulously produced to meet stringent purity and performance benchmarks. CanCastor leverages decades of experience in specialty chemical synthesis to deliver SMP that consistently performs, ensuring optimal emulsion stability, texture, and shelf-life for our clients' end products. Our commitment to ISO 9001:2015 certified quality management underpins every batch, guaranteeing a product that empowers innovators across pharmaceuticals, food & beverage, cosmetics, and various industrial sectors. This dedication to expertise and trustworthiness positions CanCastor as a reliable global supplier of critical chemical intermediates like SMP.

Key Physical & Chemical Properties

Sorbitan Mono Palmitate typically presents as a white to light yellow, waxy solid or flakes, with a mild, characteristic odor. Its unique chemical structure imparts a range of desirable properties:

• Appearance: White to light yellow waxy solid or flakes
• Acid Value: Max 8 mg KOH/g (USP, BP, FCC compliant)
• Saponification Value: 140 - 155 mg KOH/g
• Hydroxyl Value: 275 - 305 mg KOH/g
• Iodine Value: Max 10 g I2/100g
• Moisture Content: Max 1.5%
• HLB (Hydrophilic-Lipophilic Balance): Approximately 6.7
• Solubility: Insoluble in water, soluble in ethanol, methanol, ethyl acetate, and mineral oil.
• Stability: Chemically stable under normal storage conditions, resistant to hydrolysis in neutral solutions.