Appearance: Orange to Deep Orange Powder
Packing: 25kg/drum
Capacity: 2400MT/Year
Sample: Available
Alizarin Red S CAS 130-22-3
Description
Alizarin Red S Quick Details
Chemical Name: Alizarin Red S; Alizarin Sodium Sulfonate
CAS No.: 130-22-3
Molecular Formula: C14H7NaO7S
Molecular Weight: 342.26
Molecular Structure:
Appearance: Orange to Deep Orange Powder
Typical Properties
| Item | Specifications |
| Appearance | Orange to Deep Orange Powder |
| Strength | 100% |
| Colored light | Approximate to micro |
| Moisture content (%) | ≤5% |
| Water insoluble matter (%) | ≤0.5% |
| Fineness (um) | ≤5% |
| Melting point | ＞ 300°C |
| Visual pH Transition | pH 3.7 (Yellow) – 5.2 (Red); pH 10.0 (Red) – 12.0 (Violet) |
| Loss on Drying | ≤ 5.0% |
Alizarin Red S Usage
Calcium deposition staining in biological histology: The most widely used calcium salt staining agent for bones and tissues in pathology and developmental biology.
Complexometric titration metal indicator: A highly effective indicator for photometric determinations and complexometric titrations in analytical chemistry, used in photometric methods.
Acid-base indicator: Possesses multiple color-changing properties, serving as an acid-base indicator with a specific wide pH range.
Others: Commonly used for color matching in wool, worsted wool fabrics, carpets, and blankets.
Packaging and Shipping
Packing: 25kg/drum
Alizarin Red S Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.