Iron Oxide Yellow
ChemSP — A brand of Jinan Shenghe Chemical Co., Ltd.
High-quality Iron Oxide Yellow supplied by ChemSP Competitive pricing, reliable delivery, and full technical support for B2B buyers worldwide.
Specifications
| Molecular Formula | Fe2O3・H2O |
|---|---|
| Molecular Weight | 177.71 |
| Melting Point | 350~400℃ |
Detailed Chemical Properties & Synonyms
Physical & Chemical Properties
性状 由柠檬黄至褐色的粉末。 熔点 350~400℃ 相对密度 2.44~3.60 溶解性 不溶于水、醇，溶于酸。 柠檬黄至褐色粉末。分粒细腻，是晶体的氧化铁水合物。密度4.0g/cm3，具有良好的着色力、遮盖力和耐光、耐碱、耐酸和耐热性。不溶于水、醇，溶于酸。由于生产方法和操作条件不同，晶体结构和物理性质有很大差别。加热至150oC以上开始分解出结晶水，转为红色。
Applications / Uses
主要用于涂料、水泥制件、建筑表面、塑料、橡胶的着色无机黄色颜料。广泛用于人造大理石、水磨石、橡胶制品的着色。也用于制造水彩、油彩、油漆和建筑涂料。还可用制造氧化铁系颜料的中间体如制备氧化铁红、氧化铁黑。
ChemSP - your B2B chemical sourcing brand. We provide consolidated logistics and multilingual technical support to ensure every shipment is stable and reliable.
Product Overview
ChemSP supplies Iron Oxide Yellow to formulators, traders and research groups that need a documented, repeatable lot rather than an ad-hoc sample.
Its formula FeH3O3 corresponds to 1 iron atom, 3 hydrogen atoms and 3 oxygen atoms; that fixed ratio is what makes lot-to-lot equivalence testable rather than a matter of judgement.
At 106.87 it is a low-molecular-weight species, so losses through dusting and evaporation during transfer deserve attention.
Chemical Identity
| CAS Number | 51274-00-1 |
|---|---|
| Molecular Formula | FeH3O3 |
| Molecular Weight | 106.87 |
| Catalog Category | Fine Chemicals / Coatings |
Composition and Key Properties
The formula points to an oxygenated aliphatic or aromatic skeleton (alcohol, ether, ester or acid functionality) together with a mineral (metal-bearing) salt form — worth confirming against structural data before an analytical method is validated.
Applications and Use Cases
Iron Oxide Yellow (CAS 51274-00-1, molecular formula FeH3O3, molecular weight 106.87 g/mol) is used in chemical synthesis, fine chemical manufacturing and related industrial processes. Contact our sales team for the specification, COA and bulk pricing of Iron Oxide Yellow.
- Binders
- And Biocides) Food Additives
- COLOUR
- JECFA Functional Classes Food Additives
- JECFA Functional Classes Cosmetics
- Production: 2023: 40
These are uses on record, not a claim of suitability for any particular process. Whether the material fits a given application depends on the specification you set and on the regulations of the destination market.
Packaging and Handling
Supplied in standard export packaging appropriate to the physical form of the material. The exact pack size, inner liner and net weight are fixed on the order acknowledgement, since they depend on whether the lot ships as a solid, a paste or a liquid. Customers with drum, liner or pallet constraints should specify them when enquiring.
Quality and Documentation
Every lot is released against a written specification and ships with its own COA; the SDS follows the current GHS revision. Where a customer needs an additional test — heavy metals, residual solvent, particle size — it can normally be added to the specification for future lots.
Supply and Quotation
Quotations are issued against the product name and CAS number, with quantity, destination port or address, and any specification adjustments stated in the enquiry. Normal reply time is one business day.
Frequently Asked Questions
What is the CAS number of Iron Oxide Yellow?
The CAS registry number for Iron Oxide Yellow is 51274-00-1. Please quote it on any enquiry so that a quotation is matched to the correct grade.
Is Iron Oxide Yellow a stock item or made to order?
Availability moves with the production schedule, so it is confirmed at the time of enquiry. For repeat volumes a scheduled call-off arrangement is usually preferable to one-off orders.
Can you supply Iron Oxide Yellow with a specification we define?
Yes. The acceptance criteria can be adjusted within what the route allows — most often assay, moisture, heavy metals or particle size. Any change is written into the specification before the lot is released.
Request a Quotation
Extended Specifications
Iron Oxide Yellow is supplied against a clear, batch-specific specification. When you request a quote, our team confirms the assay or purity grade, physical form, pack size and any residue limits relevant to your application. Typical parameters documented on the Certificate of Analysis include identity (CAS number), molecular formula, molecular weight, appearance, assay, loss on drying and heavy-metal limits where applicable.
Applications by Industry
Buyers source Iron Oxide Yellow across food and beverage, nutraceutical and pharmaceutical, cosmetic and personal care, and selected industrial formulations. ChemSP aligns the grade and documentation set to the target application and destination market.
Regulatory & Compliance Support
ChemSP ships Iron Oxide Yellow with a Certificate of Analysis for every batch and a Safety Data Sheet on request. Additional documentation such as specification sheets, third-party test reports and regulatory support letters is available to qualified buyers to streamline import, registration and quality-assurance workflows.
Storage & Handling
Store Iron Oxide Yellow in a cool, dry, well-ventilated area in its original, tightly closed container, protected from moisture and direct sunlight. Follow the precautions in the Safety Data Sheet and standard chemical-handling guidance. Shelf life and re-test intervals are stated on the Certificate of Analysis.
Frequently Asked Questions
What is the minimum order quantity (MOQ)?
MOQ depends on grade and pack size. Sampling quantities typically start from 1 kg, with commercial volumes from 25 kg. Share your required volume and we will quote accordingly.
Can I request a sample and a Certificate of Analysis?
Yes. Samples and batch-specific Certificates of Analysis are available on request, and third-party testing can be arranged for qualified buyers.
What documentation supports import and registration?
Every shipment includes a Certificate of Analysis. The Safety Data Sheet, specification sheets and regulatory support letters are provided on request to support customs clearance and product registration in your market.
What are the typical lead times and payment terms?
Lead times vary with grade and volume. ChemSP quotes a firm delivery window with each offer, and standard international trading terms apply.
Molecular Profile
- Molecular formula
- FeH3O3
- Molar mass
- 106.87 g/mol
- Heavy atoms (non-hydrogen)
- 4
- Total atoms
- 7
- Distinct elements
- 3
Elemental Composition
| Element | Atoms | Mass fraction |
|---|---|---|
| Fe | 1 | 52.26% |
| O | 3 | 44.91% |
| H | 3 | 2.83% |
The table below is calculated from the molecular formula FeH3O3. The values are theoretical and are intended as a reference for incoming inspection and for setting a purchase specification.
Contains the metallic element Fe. The material behaves as an inorganic salt: it is non-volatile, generally water-soluble, and leaves an inorganic residue on ignition.
At 106.87 g/mol the molar mass is in the small-molecule range, where volatility and dust generation are the practical handling concerns.
Identity and Registry Data
- CAS number
- 51274-00-1
Handling, Storage and Stability
Store sealed in a dry, well-ventilated area. Inorganic salts take up moisture readily and may cake or partially dissolve; keep away from strong acids.
Typical Specification Parameters
- Assay / content
- Loss on drying / moisture
- Appearance and odour
- Heavy metals (as Pb)
- Shelf life and packaging
- Residue on ignition (sulfated ash)
These are the parameters normally reported on a certificate of analysis. Limits are lot-specific and follow the specification agreed between supplier and buyer; no numeric limits are stated or implied here.
Frequently Asked Questions
What are the CAS number, molecular formula and molar mass of Iron Oxide Yellow?
Iron Oxide Yellow is identified by CAS 51274-00-1, molecular formula FeH3O3 and a molar mass of 106.87 g/mol.
What is the elemental composition of Iron Oxide Yellow?
Calculated from FeH3O3, the composition by mass is: Fe 52.3%, O 44.9%, H 2.8%.
Which parameters are normally reported for Iron Oxide Yellow?
A certificate of analysis normally reports Assay / content, Loss on drying / moisture, Appearance and odour, Heavy metals (as Pb), Shelf life and packaging, Residue on ignition (sulfated ash). Exact limits are agreed with the buyer and are lot-specific.
Applications
主要用于涂料、水泥制件、建筑表面、塑料、橡胶的着色无机黄色颜料。广泛用于人造大理石、水磨石、橡胶制品的着色。也用于制造水彩、油彩、油漆和建筑涂料。还可用制造氧化铁系颜料的中间体如制备氧化铁红、氧化铁黑。
Packaging & Shipping
- Standard: 25 kg fiber drum / 200 kg steel drum with double PE liner
- Small pack: 1 kg / 5 kg aluminum foil bag for lab & sample
- Custom: packaging size and labeling per customer requirement
- Lead time: in-stock items ship within 3-5 business days
- Documents: COA, MSDS / SDS, TDS provided with every shipment
- Global: air, sea (FCL / LCL) and express to 80+ countries
Storage & Handling
Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.
Frequently Asked Questions
Yes. A batch-specific COA and free or charged sample are available on request before bulk ordering.
Yes. We offer custom grade, particle size and purity adjustment based on your application and order volume.
MOQ depends on the product; small quantities are supported for R&D and trial runs.
Every batch is tested in-house and retains full traceability from raw material to finished goods.
Why Choose ChemSP
Request a Quote
Looking for pricing, availability or technical data for Iron Oxide Yellow?
Email us at sales@chemsp.com or use the button above. Our team typically responds within 1 business day.
About ChemSP
ChemSP
We are a professional chemical supplier based in Jinan, China. Since 2013, we have been connecting manufacturers and global B2B buyers with reliable sourcing, quality-controlled products and efficient logistics.
Our business covers food & feed additives, fine chemicals, pharmaceutical intermediates, eco-materials, coatings and specialty chemicals — all non-hazardous and compliant with our licensed scope.