Starch Soluble ACS Reagent (CAS 9005-84-9) is a partially hydrolyzed amylose/amylopectin mixture of ACS reagent grade. It functions as an iodometric indicator, forming an intense blue-black inclusion complex with triiodide (I3-) ions. This enables its use as a classic iodometric endpoint indicator. S.Nihar Exports supplies this ACS reagent grade for analytical applications, supporting pharmaceutical and R&D requirements.
Starch Soluble ACS Reagent: Chemical Profile and Indicator Properties
Starch Soluble ACS Reagent is categorized as an iodometric indicator and a biological stain. As a partially hydrolyzed amylose/amylopectin mixture of ACS reagent grade, its primary characteristic is the formation of an intense blue-black inclusion complex with the triiodide (I3-) ion. This property makes it a classic endpoint indicator for iodometric titrations, offering detectable sensitivity at micromolar I3- concentrations, resulting in a sharp endpoint color change.
Key Analytical and Pharmaceutical Applications
This reagent is utilized in iodometric titrations for the determination of various oxidizing agents, including iodate, hypochlorite, and hydrogen peroxide. Specific applications include the determination of ascorbic acid (vitamin C) by the iodometric method and the measurement of water chlorine and iodate in environmental testing. Within pharmaceutical quality control, Starch Soluble ACS Reagent is employed for the iodometric assay of oxidizing active pharmaceutical ingredients (APIs).
Biological Staining and Differential Media
Beyond analytical chemistry, Starch Soluble ACS Reagent serves a role in bacteriology. It is used as a differential stain for identifying amylase-producing organisms. This application is integral to the starch hydrolysis test, functioning as a component in differential media.
Sourcing Starch Soluble ACS Reagent from S.Nihar Exports
S.Nihar Exports supplies ACS reagent grade Starch Soluble for analytical applications. The company is an ISO 9001:2015 certified fine and specialty chemical supplier, headquartered at 512 Maker Bhavan 3, New Marine Lines, Mumbai 400020, India. Founded in 1995, S.Nihar Exports is part of N. Himatlal & Co. They supply globally to pharmaceutical manufacturers, R&D labs, and life sciences companies. A Certificate of Analysis (COA) is provided with every shipment, and HPLC-grade, ACS reagent, and indicator-grade variants are available on request.