Description

Starch, Compd. With Iodine is a well-defined chemical complex formed between starch and iodine, widely recognized for its distinctive blue-black coloration. This compound is crucial for its specific and sensitive chemical detection properties, serving as a fundamental indicator in analytical chemistry. It is an essential reagent for laboratories and industries requiring precise volumetric analysis, particularly in titrimetric methods for determining oxidizing and reducing agents.

Application

• Iodometric Titrations: Primary application as a highly sensitive and specific indicator for the detection of free iodine, marking the endpoint in redox titrations (e.g., determination of chlorine, copper, peroxide).
• Analytical Chemistry: Standard reagent in quantitative analysis for assaying substances through iodometry and iodimetry.
• Laboratory Reagent: Used in educational, research, and quality control laboratories for chemical demonstrations and standard test procedures.
• Starch-Iodine Test: Employed in biochemical and food science applications to detect the presence of starch or, conversely, iodine.
• Pharmaceutical Testing: May be utilized in specific pharmacopoeial methods for the assay of certain drug substances.
• Water Quality Analysis: Applied in environmental testing kits for the determination of residual oxidants like chlorine.

Basic Information

Product Name	Starch, Compd. With Iodine
CAS No.	9005-83-8
Molecular Formula	Variable Complex
Molecular Weight	N/A (Complex)
Synonyms	Iodine-Starch Complex; Starch Iodide; Starch-Iodine Complex; Iodine Starch Reaction Product; Lugol's Starch (when in solution); Amylose-Iodine Complex; Iodostarch; Indicator Starch
EINECS	Contact for details

Quality Control

Our Starch, Compd. With Iodine is manufactured and tested to ensure high reactivity and consistency as a critical analytical indicator. Production follows strict quality protocols suitable for laboratory and analytical reagent grades. A comprehensive Certificate of Analysis (COA) is provided with each batch, detailing key parameters such as sensitivity, solubility, and performance in standard titration methods. We support compliance with relevant pharmacopoeial (e.g., USP, EP) and analytical reagent specifications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is light-sensitive and should be stored away from light to prevent degradation of the iodine-starch complex. Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Blue-black to dark gray powder or solid
Identification (IR)	Conforms to structure
Sensitivity Test	Produces characteristic blue color with trace iodine
Solubility	Partially soluble in water, forming a blue colloidal solution
Loss on Drying	≤ 10.0 %
Heavy Metals	≤ 20 ppm
Performance in Titration	Provides sharp, unambiguous endpoint

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