| Customization: | Available |
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| CAS No.: | / |
| Formula: | C20h11o10n2s3na3 |
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Carmine is red to dark red uniform granules or powder, odorless. It has good light resistance and acid resistance, strong heat resistance (105ºC), poor reduction resistance; poor bacterial resistance. It is soluble in water, and the aqueous solution is red; it is soluble in glycerin, slightly soluble in alcohol, and insoluble in oils and fats; the maximum absorption wavelength is 508nm±2nm. It is stable to citric acid and tartaric acid; it turns brown when exposed to alkali. The coloring properties are similar to amaranth.
Carmine appears to be a red to dark red powder. It is easily soluble in water and glycerin, difficult to dissolve in ethanol, and insoluble in oils.
| Items | Specifications |
| Color | Red to crimson powder or granule |
| Content (%) | ≥85.0 |
| Loss on drying (%) | ≤10 |
| Total chloride and sulfate | ≤8.0 |
| Water insoluble (%) | ≤0.20 |
| Secondary dyestuff (%) | ≤3.0 |
| Arsenic (As), (%) | ≤0.0001 |
| Heavy metal (Pb) (%) | ≤0.001 |
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