61789-32-0

Basic information

• Product Name: Sodium cocoyl isethionate
• Synonyms: Fattyacids,coco,2-sulfoethylesters,sodiumsalts;fattyacids,coconutoil,sulfoethylesters,sodiumsalts;jordaponci;sodiumcocoylisothionate;COCONUT OIL ACID ESTER OF SODIUM ISETHIONATE;IGEPON AC-78;SODIUMCOCOISOTHIONATE;Fettsuren, Kokos-, 2-Sulfoethylester, Natriumsalze
• CAS NO: 61789-32-0
• Molecular Formula: C2Na6O47S20
• Molecular Weight: 1555.23182
• EINECS: 263-052-5
• Product Categories: Organic chemistry
• Mol File: 61789-32-0.mol
• Article Data: 0

Chemical Properties

• Appearance: white to off white powder or flake
• Density: 1110[at 20℃]
• Vapor Pressure: 0.002Pa at 20℃
• PKA: 0.36[at 20 ℃]
• Water Solubility: 102mg/L at 23℃
• CAS DataBase Reference: Sodium cocoyl isethionate(CAS DataBase Reference)
• NIST Chemistry Reference: Sodium cocoyl isethionate(61789-32-0)
• EPA Substance Registry System: Sodium cocoyl isethionate(61789-32-0)

Safety Data

• Hazardous Substances Data: 61789-32-0(Hazardous Substances Data)

Usage

Description

Sodium cocoyl isethionate is a natural ingredient derived from coconut oil, specifically through the combination of isethionic acid and fatty acids found in coconut oil. The mixture is heated and distilled to remove excess water and unnecessary fatty acids, resulting in a mild, high-foaming surfactant with excellent moisturizing properties.

Uses

Used in Cosmetics and Personal Care Industry:
Sodium cocoyl isethionate is used as a mild, high-foaming surfactant for [creating a soft afterfeel on the skin and providing effective cleansing without causing dryness or irritation]. It is a sulfate-free alternative for people who want to avoid commonly known surfactants such as sodium lauryl sulfate (SLS).
Used in Bath Soaps and Cleansing Products:
Sodium cocoyl isethionate is used as an ingredient in the preparation of bath soaps and cleansing products for [its effective cleansing and foaming properties, as well as its moisturizing benefits].
Used in Hair Care Industry:
Sodium cocoyl isethionate is used in the formulation of shampoos, tonics, dressings, and other hair grooming aids for [cleansing the hair and scalp without causing dryness or irritation, and providing a soft afterfeel].

Function

Sodium Cocoyl Isethionate is a sodium salt ester, or a fatty acid derived from coconut oil. It is used in cosmetics and personal care products as a surfactant and is often seen in hair care products like shampoos because of its ability to help water to mix with oil and dirt, allowing them to be more easily rinsed away. Sodium Cocoyl Isethionate is also seen as an ingredient in a variety of soaps and cleansing products. As a surfactant, it creates a wet feeling, it solubilizes oils and reduces surface tension, and can aid in foaming as well.

Benefit

Excellent foam density and foam stability Has very good lime soap dispersion and surface activity Leaves no soap scum as it is very hard water tolerant Compatible with soaps and anionic, non-ionic, and amphoteric surfactant Excellent lathering; exceptionally mild, provides soft skin after-feel Can be used in clear / pearlescent gels

Side effects

The CIR has approved the use of Sodium Cocoyl Isethionate in concentrations up to 50% for rinse-off products, and 17% for leave-on products. Although it is considered generally mild, all surfactants can be irritants, and tend to be more irritating at higher concentrations. Sodium Cocoyl Isethionate has been specifically shown to cause some eye irritation at higher concentrations. According to the Cosmetics Database, it is also linked to organ-system toxicity (the American College of Toxicology reported that one or more animal studies showed broad systemic effects at high doses), although the EWG notes lesser concerns regarding this side effect, and ultimately finds it to be a low hazard ingredient.

Manufacture

Sodium cocoyl isethionate is produced by reacting sodium isethionate with coconut fatty acids followed by neutralization with sodium hydroxide. The mixture is heated to remove water and distilled to remove excess fatty acid. Sodium isethionate is originally made by ethoxylation of sodium sulfites and their derivatives.

Preparation

Sodium Cocoyl lsethionate is preparedvia the following reaction: sodium isethion- ate is reactedwith either the fatty acid mixture from coconut oil (Hoffmann, 1990)or the corresponding chlorides to form Sodium Cocoyl lsethionate (Hunting, 1983). The sodium isethionate was first prepared by adding 1 mole of ethylene oxide to sodium bisulfite.

Flammability and Explosibility

Nonflammable

Safety

The Cosmetics Ingredient Review has deemed the ingredient safe for use in cosmetic products when formulated to be non irritating. Whole Foods has deemed the ingredient acceptable in its body care quality standards. Clinical research has shown that the ingredient is typically not a skin irritant or sensitizer.sodium-cocoyl-isethionate