Description

Hydroxybutylmethylcellulose is a non-ionic, water-soluble cellulose ether derivative, valued for its excellent thickening, film-forming, and stabilizing properties. This versatile polymer is engineered to provide controlled viscosity and enhanced performance in aqueous systems. It is a critical additive for formulators in the pharmaceutical, personal care, and construction industries seeking reliable rheology modification and moisture retention.

Application

• Pharmaceuticals: As a binder, controlled-release matrix former, and viscosity-enhancing agent in tablet coatings, ophthalmic solutions, and topical gels.
• Personal Care & Cosmetics: Used in shampoos, creams, and lotions as a thickener, emulsion stabilizer, and film-former to improve texture and product stability.
• Construction Materials: Acts as a water-retention agent and workability aid in cement-based products like tile adhesives, grouts, and self-leveling compounds.
• Paints & Coatings: Serves as a thickener and rheology modifier in water-based paints to prevent sagging and improve application properties.
• Food Industry: Functions as a stabilizer, thickener, and emulsifier in various food products (where specific food-grade compliance is met).
• Ceramics: Used as a binder and plasticizer in ceramic bodies and glazes to improve green strength and forming characteristics.

Basic Information

Product Name	Hydroxybutylmethylcellulose
CAS No.	9083-50-5
Molecular Formula	(C10H18O6)n
Molecular Weight	Variable (Polymer)
Synonyms	HBMC; Hydroxybutyl Methyl Cellulose; 2-Hydroxybutyl Methyl Ether of Cellulose; Cellulose, 2-hydroxybutyl methyl ether; Methylhydroxybutylcellulose; HPMC Type (related derivative); Cellulose Hydroxybutyl Methyl Ether
EINECS	Contact for details

Quality Control

Our Hydroxybutylmethylcellulose is manufactured under a strict quality management system. Each batch is tested to ensure consistent performance parameters such as viscosity, methoxy/hydroxybutoxy content, and moisture levels. Certificates of Analysis (COA) documenting these specifications are available upon request. We can support compliance with relevant standards for pharmaceutical (USP/EP), food (FCC), and industrial applications.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture which may affect performance.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Viscosity (2% aqueous solution)	As per grade (e.g., 5 - 200,000 mPa·s)
Methoxy Content	Contact for details
Hydroxybutoxy Content	Contact for details
Loss on Drying	≤ 5.0 %
pH (1% solution)	5.0 - 8.0
Ash Content	≤ 1.5 %

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