Starch, Soluble, Powder, Reagent, ACS, Spectrum™ Chemical

Description

S1555, 9005-84-9, (C₆H₁₀O₅)_n

Spectrum™ Chemical Starch, Soluble, Powder, Reagent, ACS is indicator for redox titrations where triiodide is present. Starch forms a very dark blue-black complex with triiodide which can be made by mixing iodine with iodide (often from potassium iodide). The color of the starch complex is so deep, that it can be detected visually when the concentration of the iodine is as low as 0.00002 M at 20 °C. As an ACS grade quality reagent, its chemical specifications are the de facto standards for chemicals used in many high-purity applications and typically designate the highest quality chemical available for laboratory use. Spectrum Chemical manufactured Reagent ACS grade products meet the toughest regulatory standards for quality and purity.

Specifications

Chemical Identifiers

• CAS: 9005-84-9
• Molecular Formula: C12H22O11
• Molecular Weight (g/mol): 342.30
• InChI Key: GUBGYTABKSRVRQ-ASMJPISFSA-N
• IUPAC Name: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-{[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy}oxane-3,4,5-triol
• SMILES: OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O

• CAS Max %: 1
• pH: 5.0 to 7.0
• Ignition Residue: 0.004
• Packaging: Poly Bottle
• Quantity: 125 g
• Grade: ACS