Specifications Table

Product Name – Starch, soluble ARS, ACS
Quantity/Pack Size – 500 g
Form – Powder
Grade – ARS, ACS
Application – Analytical reagent, biochemical assays, iodine titration

Product Overview

This soluble starch (ARS, ACS grade) is a highly refined, water-soluble polysaccharide designed for laboratory applications requiring precision and reliability. Sourced from premium botanical extracts, it undergoes rigorous purification to eliminate impurities, ensuring consistent performance in analytical and biochemical procedures. The ARS (Analytical Reagent Standard) and ACS (American Chemical Society) certifications guarantee adherence to strict quality benchmarks, making it suitable for sensitive tests like iodine titration, enzymatic studies, and colorimetric assays. Its fine, free-flowing powder form dissolves effortlessly in cold or warm water, forming a stable colloidal solution without residual turbidity. The product is packaged in airtight, moisture-resistant containers to preserve its integrity during storage and handling. Compatible with most aqueous buffers and non-reactive with common lab solvents, this starch serves as a dependable reagent for protocols demanding high-purity carbohydrates. Whether used as a substrate, indicator, or stabilizer, its standardized composition minimizes variability between batches, supporting reproducible results in critical experiments.

FAQs

1. What is the difference between ARS and ACS grades in this soluble starch?

The ARS (Analytical Reagent Standard) grade meets general laboratory requirements for purity and consistency, while the ACS (American Chemical Society) grade adheres to stricter specifications set by the ACS for reagents used in official analytical methods. Both are high-purity, but ACS is preferred for standardized protocols.

2. Can this starch be used directly in iodine titration without further purification?

Yes, this soluble starch is pre-purified and requires no additional treatment for iodine titration. Its ARS/ACS certification ensures it is free from interfering substances like proteins or lipids that could affect endpoint detection.

3. How should this product be stored to maintain its shelf life?

Store the unopened container in a cool, dry place (15–25°C) away from direct sunlight and moisture. After opening, reseal the pack tightly to prevent humidity absorption, which can cause clumping. Under ideal conditions, the shelf life is 24 months from the date of manufacture.

4. Is this soluble starch compatible with organic solvents like ethanol or acetone?

No, this starch is designed for aqueous solutions and is insoluble in organic solvents. For applications requiring solvent compatibility, consider modified starch derivatives or alternative polysaccharides like cyclodextrins.

5. What alternatives exist if this starch is unavailable for enzymatic assays?

For enzymatic studies, alternatives include amylopectin, amylose, or pre-gelatinized starch, though these may require adjustments to protocol conditions. Dextrin or maltodextrin can also substitute in some cases, but their reactivity and solubility profiles differ.