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Iron oxide colorants are inorganic pigments derived from iron oxide compounds, known for their stability and non-toxicity. These colorants are widely used in the pharmaceutical industry as excipients, particularly in coating agents for tablets and capsules. They provide a range of colors, enhancing the visual appeal of pharmaceutical products while also serving functional purposes such as UV protection and masking unpleasant tastes.
| Color range | Red, yellow, brown, and black |
| Composition | Iron oxide (Fe2O3, Fe3O4) |
| Purity | Typically 95% or higher |
| Particle size | Typically 10 to 50 microns |
| Regulatory compliance | Meets FDA and EU regulations for food and pharmaceutical use |
When selecting iron oxide colorants, buyers should consider the specific color required, as well as the purity and regulatory compliance of the product. It is important to specify the intended application, as different formulations may be suitable for pharmaceuticals versus cosmetics. Additionally, requesting information on particle size and any relevant certifications can ensure that the product meets the necessary industry standards.
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They are made from iron oxide compounds, such as Fe2O3 and Fe3O4.
Yes, they are generally recognized as safe and comply with FDA and EU regulations.
They can produce a range of colors including red, yellow, brown, and black.
Consider the desired color, purity, and regulatory compliance for your specific application.
The typical particle size ranges from 10 to 50 microns.
Yes, they are also used in food applications and must meet relevant safety regulations.