Industry Grade 99% Anthraquinone CAS 84-65-1

Product Overview

Anthraquinone (9,10-anthraquinone) is a yellow crystalline organic compound with the formula C₁₄H₈O₂, built from three fused aromatic rings carrying two ketone groups. It is one of the most important fine-chemical intermediates in the world: the vast majority of production feeds the synthesis of anthraquinone dyes — disperse, acid, vat and reactive dyes that color polyester, wool, cotton and more.

Outside dye chemistry, anthraquinone is a proven process chemical: as a pulping additive it accelerates delignification and raises pulp yield in kraft mills, and as the carrier of the anthraquinone process it enables industrial hydrogen peroxide production. Its stable, redox-active quinone core also serves, agrochemical and specialty applications.

A single molecule, four core value propositions:

Dye Intermediates:

● the key starting material for anthraquinone disperse, acid, vat and reactive dyes;

Pulping & Papermaking:

● a kraft pulping catalyst that raises pulp yield, shortens cooking time and cuts alkali charge;

Hydrogen Peroxide Production:

● the working-compound carrier of the industrial anthraquinone process for H₂O₂;

Fine Chemicals & Specialty:

● an intermediate fo agrochemicals, wood protection and specialty chemicals.

Product Information (Quick Facts)

Chemistry & Grades

Anthraquinone is the most stable member of the quinone family: its two ketone groups are fully conjugated into the aromatic system, giving high thermal stability (melting point 284 – 286 °C), resistance to oxidation and a clean, reversible redox behavior. That reversible quinone/hydroquinone redox couple is exactly what makes it useful — as a redox catalyst in pulping and as the hydrogen carrier of the anthraquinone peroxide process.

Commercial anthraquinone is produced mainly by anthracene oxidation or by the phthalic-anhydride route, and is classified by application. Dye grade is controlled for color strength and impurities that would distort dye shades; pulping grade serves kraft cooking where purity, particle size and redox activity matter; industrial grade covers peroxide and general chemical use.

Key Features & Benefits

● Versatile dye-platform chemistry: the backbone of anthraquinone disperse, acid, vat and reactive dyes with excellent lightfastness.

● Proven pulping catalyst: kraft-AQ cooking raises pulp yield, accelerates delignification, shortens cook time and cuts alkali and energy use.

● Industrial H₂O₂ carrier: the standard working compound of the anthraquinone process that dominates global hydrogen peroxide production.

● Reversible redox core: clean quinone/hydroquinone cycling makes it a reliable process chemical, not just a dye intermediate.

● High thermal and chemical stability: stable at high temperatures and resistant to oxidation in demanding processes.

● Multi-industry reach: one molecule serving textiles, paper, chemicals, agrochemistry and wood protection.

● Grade flexibility: dye, pulping and industrial grades with custom particle size and packaging.

● Full traceability: COA with every batch documenting assay and key impurities.

Main Applications

1 Dye Intermediates (Core Application)

Anthraquinone is the platform molecule of an entire dye family:

● Disperse dyes: bright, lightfast colors for polyester and synthetic fibers;

● Acid dyes: level, wash-fast dyes for wool, nylon and silk;

● Vat dyes: the indanthrene-class dyes with outstanding fastness on cotton;

● Reactive dyes: anthraquinone chromophores for cellulosic fibers;

● Derivative route: sulfonation, chlorination and nitration of anthraquinone build the full intermediate tree.

2 Pulping & Papermaking

● Kraft-AQ pulping: catalyzes delignification, raising pulp yield by 1 – 3% while reducing cooking time;

● Chemical savings: lowers alkali charge and steam/energy demand in the digester;

● Environmental benefit: reduces black-liquor load and improves mill economics;

● Additive dosing: effective at very low dosage (typically 0.02 – 0.1% on wood).

3 Hydrogen Peroxide Production

● Anthraquinone process: 2-ethylanthraquinone (derived from anthraquinone) cycles between quinone and hydroquinone, carrying oxygen to produce H₂O₂;

● Working solution: the quinone carrier in the oxidation–extraction loop of peroxide plants;

● Hydrogen carrier chemistry: the reversible redox pair at the heart of the process.

4 Fine Chemicals & Specialty Applications

● Agrochemicals: building block for pesticide and biopesticide synthesis;

● Wood protection: bird-repellent and preservative component in specialty treatments;

● Specialty chemicals: redox mediator, photo-chemistry and functional-materials research.

Packaging, Storage

Packaging (customizable):

● 25 kg multi-wall paper bag with PE liner, 25 kg fiber drum, or 500 kg – 1,000 kg FIBC;

Storage:

● Keep in a cool, dry, well-ventilated area away from direct sunlight and heat;

● Keep containers closed to prevent contamination and caking;

● Store away from strong oxidizers; powder can form combustible dust — control dust generation and ignition sources;

● Recommended storage temperature 5 °C – 35 °C.

Why Choose Jinan Future Chemical Co., Ltd.?

● Factory-direct supply: own production capacity, transparent pricing, no middleman markup;

● Stable quality: strict internal control, every batch tested, COA with every shipment;

● Export experience: familiar with sea/air shipping documentation for chemical commodities, complete paperwork support;

● Fast response: quotations and technical support (COA, application advice) within 24 hours; small trial orders accepted.

FAQ

Q1: What is anthraquinone used for?

Anthraquinone's largest use is as the intermediate of anthraquinone dyes (disperse, acid, vat and reactive). It is also a kraft pulping catalyst that raises pulp yield and shortens cooking time, the working-compound carrier of the industrial hydrogen peroxide process, and an intermediate for agrochemicals and wood protection.

Q2: How does anthraquinone improve kraft pulping?

In alkaline (kraft) cooking, anthraquinone cycles between quinone and hydroquinone forms, shuttling electrons to accelerate cleavage of the lignin–carbohydrate bonds. This speeds delignification, which lets mills raise pulp yield (typically 1 – 3%), shorten cook time, lower alkali charge and cut energy and black-liquor load — all at a dose of just 0.02 – 0.1% on wood.

Q3: Is anthraquinone safe to handle?

Anthraquinone has low acute toxicity, but the powder can irritate eyes and airways, can form combustible dust. Use dust masks, gloves and goggles, avoid generating dust, and control ignition sources. It is an industrial chemical, not a food or drug ingredient.