Description

Starch, Carboxymethyl Ether, Polymer With (Chloromethyl) Oxirane is a chemically modified starch derivative, specifically a cross-linked carboxymethyl starch. This engineered polymer combines the thickening and stabilizing properties of starch with enhanced ionic character and structural integrity. It is valued for its ability to modify rheology, stabilize emulsions, and act as a binder or film-former in demanding formulations. Key industries that utilize this specialty polymer include pharmaceuticals, personal care, textiles, and advanced material sciences.

Application

• Pharmaceutical Excipient: Used as a disintegrant, binder, or controlled-release matrix agent in tablet and capsule formulations.
• Personal Care & Cosmetics: Functions as a thickener, stabilizer, and texture enhancer in creams, lotions, and hair care products.
• Textile Printing & Sizing: Serves as a biodegradable thickener for pigment printing pastes and a sizing agent for yarns.
• Adhesive & Binder Systems: Acts as a water-based adhesive component or binder in paper, construction materials, and foundry applications.
• Enhanced Oil Recovery (EOR): Utilized as a viscosifier and mobility control agent in polymer flooding operations.
• Food Industry (where compliant): Can be used as a stabilizer or thickener in specific food systems, subject to regulatory approval for the intended grade.
• Water Treatment: Employed as a flocculant aid or sludge dewatering agent in industrial wastewater treatment processes.

Basic Information

Product Name	Starch, Carboxymethyl Ether, Polymer With (Chloromethyl) Oxirane
CAS No.	68412-91-9
Molecular Formula	(C6H7O2(OH)2CH2COONa)n · (C3H5ClO)m (Representative)
Molecular Weight	Variable polymer (Contact for details)
Synonyms	Carboxymethyl Starch, Cross-linked; Crosslinked Carboxymethyl Starch; CMS, cross-linked; Epichlorohydrin-Crosslinked Carboxymethyl Starch; Sodium Carboxymethyl Starch Ether; Poly(carboxymethyl starch-g-epichlorohydrin); INS 1450 (modified); Starch, carboxymethyl ether, polymer with (chloromethyl)oxirane
EINECS	Contact for details

Quality Control

Our Starch, Carboxymethyl Ether, Polymer With (Chloromethyl) Oxirane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. Parameters such as degree of substitution, viscosity, pH, moisture content, and residue on ignition are routinely monitored. Certificates of Analysis (COA) are provided with every shipment. We can support compliance with relevant standards such as USP-NF, Ph. Eur., or FCC for applicable grades upon request.

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 when not in use to prevent moisture absorption and caking. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
pH (1% solution)	5.5 - 8.5
Loss on Drying	≤ 10.0 %
Viscosity (Brookfield, specified concentration)	As per grade
Degree of Substitution (Carboxymethyl)	0.2 - 0.8 (Typical)
Residue on Ignition (Sulfated Ash)	≤ 20.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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