Yellow Iron Oxide — Pharma Grade Colour Supplier, Hyderabad
Product Overview
Yellow Iron Oxide (Goethite, FeO(OH)) is a synthetic inorganic yellow pigment approved for pharmaceutical, cosmetic, and food applications. It provides stable yellow colouration in tablet film coatings and is compatible with most pharmaceutical coating systems including HPMC-based and sugar coating formulations.
Specifications
| CAS Number | 51274-00-1 |
| Molecular Formula | FeO(OH) |
| Appearance | Yellow powder |
| Iron Oxide Content | NLT 85.0% |
| Loss on Drying | NMT 2.0% |
| Grades | IP / BP / EP / USP |
| Packaging | 25 kg HDPE bags |
Applications
- Yellow pigment in tablet film coatings
- Capsule shell yellow colourant
- Cosmetic eye shadow and foundation pigment
- Food-safe yellow colouring
- Topical formulation colourant
- Blended with TiOâ‚‚ to produce cream/buff shades
Why Source from Surravi Phharma?
- Ready stock maintained in our centralised AC warehouse, Hyderabad
- IP / BP / EP / USP grades available
- Complete documentation: COA, MSDS, Regulatory certifications
- Flexible quantities — lab scale to bulk commercial
- Prompt delivery with pan India logistics support
Frequently Asked Questions
Where can I buy Yellow Iron Oxide pharma grade in Hyderabad?
Surravi Phharma supplies Yellow Iron Oxide (FeO(OH)) in IP, BP, EP, and USP grades in Hyderabad. Ready stock. Used in tablet coatings and capsule shells. Call +91 8008002576 for pricing and documentation.
What is the CAS number and chemical formula of Yellow Iron Oxide?
Yellow Iron Oxide (Goethite) has CAS number 51274-00-1 and molecular formula FeO(OH). It is a synthetic inorganic pigment with an iron oxide content of NLT 85% (dry basis). The yellow colour comes from its specific crystal structure (alpha-FeOOH).
Does Yellow Iron Oxide change colour during drying or high-temperature processing?
Yellow Iron Oxide is stable up to approximately 150–180°C, after which it begins dehydrating to Red Iron Oxide. For tablet coating processes that use inlet air temperatures above 150°C, Yellow Iron Oxide should be used with caution. Standard coating processes (60–80°C bed temperature) are well within safe limits.
Can Yellow Iron Oxide be used in food products in India?
Iron Oxides (Red, Yellow, Black) are currently permitted food colourants in many countries (EU E172), but their status under FSSAI in India is limited. For pharmaceutical use in India, they are listed in the IP and approved for tablet coatings. Always verify current FSSAI approval status for specific food applications.
What colour does Yellow Iron Oxide produce when blended with Titanium Dioxide?
Yellow Iron Oxide blended with Titanium Dioxide produces cream, ivory, and buff shades depending on the ratio. Low TiOâ‚‚ with Yellow Iron Oxide gives a golden-yellow tone; higher TiOâ‚‚ produces a pale cream or off-white. This blend is used for standard film-coated tablets in a natural, neutral colour.