Description

Steareth-7 is a non-ionic surfactant belonging to the polyoxyethylene alkyl ether family, synthesized from stearyl alcohol and ethylene oxide. This versatile emulsifier and solubilizer is prized for its ability to stabilize oil-in-water emulsions and enhance the solubility of active ingredients in complex formulations. It is a critical component for manufacturers in the personal care, cosmetic, and pharmaceutical industries seeking reliable performance and mildness in their products.

Application

• Primary emulsifier and co-emulsifier in creams, lotions, and other oil-in-water cosmetic emulsions.
• Solubilizer for fragrances, essential oils, and active pharmaceutical ingredients (APIs) in clear gels and aqueous solutions.
• Key ingredient in hair care formulations such as conditioners and styling products for its conditioning and stabilizing properties.
• Used in skin care products, including moisturizers and sunscreens, for its emulsifying and skin-feel benefits.
• Formulation aid in topical pharmaceutical preparations like ointments and medicated creams.
• Industrial applications as a wetting and dispersing agent in specialty chemical blends.

Basic Information

Product Name	Steareth-7
CAS No.	66146-84-7
Molecular Formula	CnH2n+1(OCH2CH2)7OH (n~17)
Molecular Weight	~ 538 g/mol (Average)
Synonyms	Polyoxyethylene (7) stearyl ether; PEG-7 stearyl ether; α-Hydro-ω-hydroxy-poly(oxy-1,2-ethanediyl) C16-18-alkyl ethers; Stearyl alcohol ethoxylate (7 EO); Brij 72; Volpo S7; Lipocol SC-7
EINECS	266-213-9

Quality Control

Our Steareth-7 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. It is produced in compliance with relevant cosmetic and pharmaceutical guidelines. Comprehensive testing is performed, and a Certificate of Analysis (COA) detailing key parameters such as hydroxyl value, ethylene oxide content, and acid value is provided with each shipment to guarantee product integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain product stability.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms
Hydroxyl Value (mg KOH/g)	70 - 85
Acid Value (mg KOH/g)	≤ 1.0
Saponification Value (mg KOH/g)	≤ 3.0
Water Content (%)	≤ 1.0
pH (10% solution)	5.0 - 7.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.