CAS 51274-00-1
Yellow Oxide 920
CAS 51274-00-1Fe2O3·H2O177.71 g/mol
Yellow Oxide 920 is a synthetic iron oxide used primarily as a pigment. Its versatile application in industries such as paints, coatings, and construction provides durable, weather-resistant yellow coloration. Known also by its CAS number 51274-00-1 and C.I. number 77492, this pigment is a trusted component in various industrial formulations.
Main applicationPaints, varnishes, and coatings
Also known as
- Pigment Yellow 42
- PY42
- Transparent Yellow Iron Oxide

Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Available in 25 kg
- 50 kg
- 200 kg packages
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 51274-00-1
- Chemical formula
- Fe2O3·H2O
- Molecular weight
- 177.71 g/mol
- Grade
- Industrial grade
- Purity
- ≥85% Fe2O3
- Appearance
- Yellow to reddish-yellow fine powder
- Density
- 4.0–4.7 g/cm³
- pH
- 3-7
- Oil Absorption
- 25-35 %
- Residue on Mesh
- ≤0.3 % (320 mesh)
- Water-Soluble Substances
- ≤0.3-0.5 %
- Moisture Content
- ≤1.0 %
Yellow Oxide 920, chemically known as hydrated iron(III) oxide (Fe2O3·H2O), is a yellow to reddish-yellow fine powder. It is odorless and has a density ranging from approximately 4.0 to 4.7 g/cm³. With a molecular weight of around 177.71 g/mol, it offers a typical purity of at least 85% Fe2O3. The pigment is both UV- and weather-resistant, making it ideal for outdoor applications. It exhibits a pH level from neutral to mildly acidic (between 3 and 7) and has an oil absorption rate of 25-35%, facilitating its use in paints and coatings. The residue on a 320 mesh is minimal, under 0.3%, and moisture content is below 1%.
Delivery
Yellow Oxide 920 is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Paints, varnishes, and coatings
- Construction materials such as cement, tiles, and bricks
- Plastics and rubber coloring
- Ceramic glazes
- Leather and paper coloring
Industries we supply this to
Why buy this from Sparks
- Provides durable yellow coloration
- Weather and UV resistant
- High tinting strength
- Low residue on mesh
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Yellow Oxide 920?
The CAS registry number for Yellow Oxide 920 is 51274-00-1. Its chemical formula is Fe2O3·H2O, with a molecular weight of 177.71 g/mol. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Yellow Oxide 920?
Yellow Oxide 920 is also referred to as Pigment Yellow 42, PY42 and Transparent Yellow Iron Oxide. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Yellow Oxide 920 is supplied?
Yellow Oxide 920 is supplied as Industrial grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What is the purity of Yellow Oxide 920?
The purity/assay figure recorded for Yellow Oxide 920 is ≥85% Fe2O3. Figures are typical values for the grade supplied; the certificate of analysis for your specific batch is the authoritative record and can be provided on request.
What does Yellow Oxide 920 look like?
Yellow Oxide 920 is described as yellow to reddish-yellow fine powder. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Yellow Oxide 920 used for?
Common applications include paints, varnishes, and coatings, construction materials such as cement, tiles, and bricks, plastics and rubber coloring, ceramic glazes and leather and paper coloring. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Yellow Oxide 920?
Yellow Oxide 920 is supplied to the Construction & Admixtures, Paints, Coatings & Inks and Textile & Leather Tanning sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Yellow Oxide 920 available in?
Available in 25 kg, 50 kg, 200 kg packages. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the HS code for Yellow Oxide 920?
Yellow Oxide 920 is recorded against the EC number 275-098-5 and the HS customs code 2821.10. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
Related to Yellow Oxide 920
Where this product sits in the catalogue, and the sectors that use it.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.PORTLAND CEMENT | Occupational Safety and Health Administrationosha.gov
- 2.Xylene - PubChempubchem.ncbi.nlm.nih.gov
- 3.Product Safety Assessmentlanxess.com
- 4.NIST1886A Portland cement Sigma-Aldrichsigmaaldrich.com
- 5.Registration Dossier - ECHAecha.europa.eu
- 6.RAVESHIA PIGMENT LTD PLOT NO 123, G.I.D.C. VAPI , DIST BULSAR 396 195, GUJRAT Email:- Sales@raveshia.com Web:www.raveshia.com |raveshia.com
- 7.25232100 HS Code - Portland Cement (white Cement), Whether Or Not Artificially Coloredhs-codes.com
- 8.Xylene And HSN Code 27073000 Buyers in Kenyavolza.com
- 9.Iron Oxide Yellow 920,Iron Oxide Yellow pigment,Pigment Yellow 42epsilonpigments.com
- 10.CEM I 52,5 N WHITErohoznikwhite.com
- 11.Xylenewebbook.nist.gov
- 12.Iron Oxide Yellow 920.pdfharwick.com
- 13.White Portland cementen.wikipedia.org
- 14.Xylene in Kenya and East Africa - Finstar Industrial Chemicalsindustrialchem.finstarindustrial.com
- 15.Yellow Iron Oxide 920 Technical Data Sheet | Zenco Chemicals East Afri | Zenco Systems Ltd - Chemical Divisionzencochemicals.com
- 16.White Portlandroyalwhitecement.com
- 17.Xylene in Kenya, Uganda, Rwanda, and Tanzania - Finstar Industrial Chemicalsindustrialchem.finstarindustrial.com
- 18.Iron Oxide Yellow 920 - DYES / Alfa Chemistryalfa-chemistry.com
- 19.Cleopatra | Our Products Cleopatra Cementcleopatracement.com
- 20.Anyone ever use Xylene?reddit.com
- 21.Trying to hunt down specific oil paints - help me with colours!reddit.com
- 22.what concrete is used to pour such stone ? cement ?reddit.com
- 23.Tips against "xylene headache" ?reddit.com
- 24.Transparent and regular Yellow Iron Oxide. What makes them different?reddit.com
- 25.Is this cement still usable?reddit.com
- 26.Xylene & Aromatic 150: Two products, one very tight market.reddit.com
- 27.Some paint I mixed up at work.reddit.com
- 28.JK White Cement 40Kg Grade CEM 52.5N | EBUILD KENYAebuild.ke
- 29.Connect with Verified Mix Xylene Buyers in Kenya | Volzavolza.com
- 30.Main colors for Synox iron oxide pigment,Red 130 and Yellow 920. | Crissa Gulinkedin.com
- 31.White Cement CEM I 52.5 N Supplier in Kenya | FINSTARfinstarindustrialchemicals.com
- 32.#kamtakesyouthere | Kenya Association of Manufacturerslinkedin.com
- 33.Yellow Oxide 920 – High-Pigment Iron Oxide for Paints, Tiles, and Cement 25Kg - Finstar Industrial Chemicalsfinstarindustrialchemicals.co.ke
- 34.Spectra Chemicals Kenya Limited | LinkedInke.linkedin.com
- 35.HSN Code 282110 Imports in Kenya - Volzavolza.com
- 36.Connect with Verified Oxide, Pigment & HSN Code 28211000 Buyers in Kenya | Volzavolza.com
- 37.Oxide Yellow Suppliers from Kenya - Volzavolza.com
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