2-Ethylanthraquinone CAS#84-51-5
2-Ethylanthraquinone belongs to the family of anthraquinone-based organic compounds. Featuring excellent reaction selectivity and stable chemical performance, this substance serves as a core working carrier in the large-scale industrial manufacturing of hydrogen peroxide (H₂O₂), which is its most prevalent commercial application. Beyond hydrogen peroxide synthesis, it also acts as a critical intermediate for the manufacturing of various dye products in the dyestuff sector. Additionally, it functions as an efficient photoinitiator, capable of triggering crosslinking reactions or photodegradation processes within polyethylene materials under light exposure.
| 2-Ethylanthraquinone Chemical Properties |
| Melting point | 108-111 °C (lit.) |
| Boiling point | 180-190°C |
| bulk density | 650kg/m3 |
| density | 1.27 g/cm3 (21℃) |
| vapor pressure | <1 hPa (25 °C) |
| refractive index | 1.6290 (estimate) |
| Fp | >210°C |
| storage temp. | Store below +30°C. |
| solubility | 0.00025g/l |
| form | powder to crystal |
| color | Light yellow to Amber to Dark green |
| Water Solubility | Insoluble in water. |
| BRN | 1969873 |
| Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChIKey | SJEBAWHUJDUKQK-UHFFFAOYSA-N |
| LogP | 4.6 |
| CAS DataBase Reference | 84-51-5(CAS DataBase Reference) |
| NIST Chemistry Reference | 9,10-Anthracenedione, 2-ethyl-(84-51-5) |
| EPA Substance Registry System | 2-Ethylanthraquinone (84-51-5) |
| Safety Information |
| Hazard Codes | Xn,N |
| Risk Statements | 22-36/37/38-50/53-48/22 |
| Safety Statements | 24/25-36-26-61-60-37 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | 1 |
| RTECS | CB0525000 |
| Autoignition Temperature | 485 °C |
| TSCA | Yes |
| HS Code | 29146990 |
| Toxicity | LD50 orally in Rabbit: > 6400 mg/kg |
Product Application of 2-Ethylanthraquinone CAS#84-51-5
H2: Product Overview
2-Ethylanthraquinone (CAS: 84-51-5), abbreviated as EAQ, is a classic anthraquinone derivative with light yellow crystalline solid appearance. Featuring stable chemical structure, good solubility in aromatic solvents and high hydrogenation efficiency, it acts as the key carrier in anthraquinone process for hydrogen peroxide manufacturing. Besides the core application in H₂O₂ production, it also exhibits excellent photoactive properties, which supports its utilization in polymer photo-processing industry.
H2: Main Application Fields
H3: Hydrogen Peroxide Manufacturing (Core Usage)
2-Ethylanthraquinone serves as the working carrier in the anthraquinone circulation process for hydrogen peroxide synthesis. Under hydrogenation condition with Pd/polyaniline and other noble metal catalysts, it undergoes reversible hydrogenation and oxidation cycles. The whole circulation continuously generates hydrogen peroxide, which is the dominant industrial route for mass production of hydrogen peroxide worldwide.
H3: Polymer Material Photo Processing
It can be applied as photoinitiator to trigger crosslinking or degradation reaction of polyethylene. Under ultraviolet irradiation, 2-Ethylanthraquinone generates active free radicals, which can realize targeted modification of polyethylene molecular chains, for example crosslinking to improve material mechanical strength or controlled degradation for biodegradable plastic pre-treatment.
H3: Other Auxiliary Industrial Uses
Raw material for synthesis of anthraquinone series dyes and fine organic intermediates;
Photo-sensitizer applied in photochemical research and specialty coating formulation;
Analytical reagent for organic chemistry lab research and light response test.
H2: Delivery Schedule
H3: Stock Order
Goods in stock can be dispatched within 2–3 working days after payment confirmation.
H3: Custom New Production Order
For newly produced batch without ready inventory, the production lead time is 7–10 working days. The exact shipping date will be notified in advance once production is finished and quality inspection passed.
H2: Packaging & Transportation
H3: Standard Packaging
Default package: 25kg fiber drum with inner plastic bag. Customized packing specification such as 50kg drum or bulk packing can be negotiated upon customer request.
H3: Transport Notes
2-Ethylanthraquinone is ordinary chemical (non-explosive, non-corrosive). It shall be kept away from direct sunlight, high temperature and strong oxidants during transit. Sealed storage in cool & dry warehouse is required. We can arrange sea freight, air freight and land transport according to destination and customer’s logistics terms (EXW, FOB, CIF, DDP etc.).
H2: Quality Assurance
Each batch will be accompanied with COA (Certificate of Analysis), including purity, melting point, moisture and related impurity test items;
Strict on-site inspection before shipment to avoid package damage and material leakage;
Support third-party testing if customer requires independent laboratory verification.
H2: After-Sales Service
Technical support: Our technical team provides guidance on product storage, feeding operation and safety precautions;
Abnormality handling: If quality or package problem occurs after receiving goods, please provide photos and test records within agreed time, we will respond and propose solution promptly;
Technical document supply: MSDS, TDS, COA and customs declaration documents can be provided for customs clearance.
H2: Customer Reference
Our 2-Ethylanthraquinone has been exported to multiple countries, serving hydrogen peroxide factories, polymer new material manufacturers and fine chemical research institutes. We support bulk tender orders and small trial orders for laboratory test. Trial batch is available for customers to verify performance before mass purchase.
H2: FAQ
H3: Q1: What is the solubility of 2-Ethylanthraquinone?
A1: It is soluble in aromatic hydrocarbon solvents, slightly soluble in alcohol solvents, and almost insoluble in water.
H3: Q2: What is the storage requirement?
A2: Store in sealed containers, cool and dry environment, avoid long-time sunshine and mixing with strong oxidizing substances.
H3: Q3: Can we get a sample for test?
A3: Yes, small quantity samples are available upon request. Sample freight can be discussed separately.
H3: Q4: What documents will be provided for customs clearance?
A4: Commercial invoice, packing list, COA, MSDS are available as standard set of documents.
