| Description | White or almost white powder, exhibits degree of fineness, ranging from a free- flowing dense powder to a coarse. It is a non flowing material. | |
| Solubility | Slightly soluble in sodium hydroxide solution (1 in 20); Insoluble in water, in dilute acids, and in nearly all organic solvents. | |
| 2. | Identification | |
| Test-A | The substance takes on a violet-blue color should be produced. | |
| Test-B | The degree of polymerization is greater than 440. | |
| 3. | Impurities | |
| Heavy Metals, ppm | NMT 10 | |
| Residue on Ignition, % | NMT 0.3 | |
| 5. | Microbiological Analysis | |
| Total Aerobic Microbial Count, CFU/g | NMT 1000 | |
| Total Combined Molds and Yeasts Count, CFU/g | NMT100 |
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