Description

Starch, Polymer With (Chloromethyl)Oxirane is a chemically modified starch derivative, specifically a cross-linked polymer formed by reacting starch with epichlorohydrin. This modification imparts enhanced stability, viscosity control, and functional properties to the base starch, making it a valuable specialty polymer. It is primarily utilized in industries requiring advanced material performance, such as pharmaceuticals, paper manufacturing, and water treatment, where its unique rheological and binding characteristics are critical.

Application

• Pharmaceutical Excipient: Used as a binder, disintegrant, or controlled-release matrix agent in tablet and capsule formulations.
• Paper Industry Additive: Functions as a wet-end additive and surface sizing agent to improve paper strength, printability, and stiffness.
• Water Treatment Flocculant: Acts as an organic flocculant or coagulant aid in the clarification of industrial and municipal wastewater.
• Textile Sizing Agent: Provides a protective coating on yarns to reduce breakage and improve weaving efficiency.
• Adhesive & Binder Formulations: Serves as a key component in adhesives, construction materials, and foundry binders due to its strong binding properties.
• Enhanced Oil Recovery (EOR): Utilized in polymer flooding operations to control the mobility of injected water and improve oil displacement.
• Personal Care Thickener: Employed as a viscosity modifier and stabilizer in creams, lotions, and other cosmetic products.

Basic Information

Product Name	Starch, Polymer With (Chloromethyl)Oxirane
CAS No.	58944-89-1
Molecular Formula	(C6H10O5)n · (C3H5ClO)m
Molecular Weight	Polymer - Variable
Synonyms	Epichlorohydrin-Crosslinked Starch; Starch Epichlorohydrin Polymer; Crosslinked Starch; (Chloromethyl)Oxirane-Starch Polymer; Starch Glycerol Ether, Crosslinked; INS 1442; E1442; Modified Starch (INS 1442); Hydroxypropyl Distarch Glycerol (related); Food Starch Modified (specific grades)
EINECS	Contact for details

Quality Control

Our Starch, Polymer With (Chloromethyl)Oxirane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for parameters such as degree of substitution, viscosity, residual epichlorohydrin, and microbial limits. Certificates of Analysis (COA) are provided with every shipment, confirming compliance with relevant standards, including food-grade (FCC, INS 1442) or pharmaceutical-grade requirements where applicable.

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 product is hygroscopic (moisture-sensitive); the storage area must have low humidity to prevent caking and degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Assay (as crosslinked starch)	≥ 85.0%
pH (5% slurry)	5.0 - 8.0
Loss on Drying	≤ 15.0%
Residual Epichlorohydrin	≤ 5 ppm
Viscosity (Brookfield, specified concentration)	As per grade requirement
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 cfu/g

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