9,10-Dioxoanthracene
Anthraquinone
CAS: 84-65-1
Molecular Formula: C14H8O2
9,10-Dioxoanthracene - Names and Identifiers
| Name | Anthraquinone |
| Synonyms | AQ CORBIT Hoelite CORBIT(R) GAUCHO BLE ANTHRAQUINONE Anthraquinone Anthracenedione 9,10-Anthraquinone anthra-9,10-quinone 9,10-Dioxoanthracene anthracene-9,10-dione Melting point standard Anthraquinone |
| CAS | 84-65-1 |
| EINECS | 201-549-0 |
| InChIKey | RZVHIXYEVGDQDX-UHFFFAOYSA-N |
9,10-Dioxoanthracene - Physico-chemical Properties
| Molecular Formula | C14H8O2 |
| Molar Mass | 208.21 |
| Density | 1.438 |
| Melting Point | 284-286 °C (lit.) |
| Boling Point | 379-381 °C (lit.) |
| Flash Point | 365°F |
| Water Solubility | <0.1 g/100 mL at 23 ºC |
| Solubility | Soluble in hot benzene and hot toluene, insoluble in cold benzene, insoluble in water, slightly soluble in ethanol, ether and chloroform. Soluble in concentrated sulfuric acid. |
| Vapor Presure | 1 mm Hg ( 190 °C) |
| Vapor Density | 7.16 (vs air) |
| Appearance | Dark yellow powder |
| Color | Yellow-green to khaki to tan |
| Merck | 14,687 |
| BRN | 390030 |
| Storage Condition | no restrictions. |
| Stability | Stable. Incompatible with strong oxidizing agents. Combustible. |
| Sensitive | Easily absorbing moisture |
| Refractive Index | 1.5681 (estimate) |
| MDL | MFCD00001188 |
| Physical and Chemical Properties | Trait: yellow needle-like crystal. melting point 286 ℃ boiling point 376.8 ℃ relative density 1.438 flash point 185 ℃ solubility: soluble in ethanol, ether and acetone, insoluble in water. |
| Use | Used as dye intermediate, papermaking cooking agent and hydrogen peroxide raw materials |
9,10-Dioxoanthracene - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R43 - May cause sensitization by skin contact R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S24 - Avoid contact with skin. |
| UN IDs | 3077 |
| WGK Germany | 1 |
| RTECS | CB4725000 |
| TSCA | Yes |
| HS Code | 2914 61 00 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: > 5000 mg/kg |
9,10-Dioxoanthracene - Upstream Downstream Industry
| Raw Materials | Benzene Phthalic anhydride Anthracene Sulfuric acid Aluminum chloride Nicotinic acid |
| Downstream Products | Hydrogen peroxide ethyl caproate |
9,10-Dioxoanthracene - Reference
| Reference Show more | 1. Li Min, Guo Yankai, Ma Zhiyuan, etc. Enhancement of electrolytic decolorization of acid red B catalyzed by quinone-modified electrode [J]. Journal of Hebei University of Science and Technology, 2014(03):291-295. 2. [IF = 1.986] Yixin Leng et al."Differentiation of isomers of oxygenated polycyclic aromatic hydrocarbons by laser desorption laser post-ionization time-of-flight mass physicl." Int J Mass Spectrom. 2021 Sep;467:116618 |
9,10-Dioxoanthracene - Nature
Open Data Verified Data
needle-like crystals or powders. Insoluble in water, ethanol and chloroform, soluble in concentrated sulfuric acid, more soluble in hot benzene, toluene nitrobenzene and aniline.
Last Update：2024-01-02 23:10:35
9,10-Dioxoanthracene - Preparation method
Open Data Verified Data
Refined anthracene oxidation method
1. The gas-phase fixed bed oxidation method adds refined anthracene to the vaporization chamber for heating and vaporization, and mixes it with air in a ratio of 1: (50-100). The mixed gas enters the oxidation chamber and undergoes oxidation at (389 ± 2) ℃ under the catalysis of V2O5. After thin-walled condensation, the product is obtained.
2. The liquid phase oxidation method measures the refined anthracene and adds it to the reaction vessel, followed by the addition of trichlorobenzene, which is dissolved under stirring. Then add nitric acid dropwise, control the reaction temperature to 105-110 ℃, remove the by-product NO, and react for 6-8 hours. After that, reduce the pressure and evaporate the solvent, cool and crystallize to obtain the product.
Phthalic anhydride method
Measure the phthalic anhydride and add it to the reaction vessel. Heat and dissolve it with benzene while stirring. Heat to 370-470 ℃ and allow the mixed gas to undergo gas-phase condensation through a silicon aluminum catalyst to obtain the product.
Carboxyl synthesis method
Add the measured amount of benzene to the reaction vessel, pass CO at 4.88 MPa, and react at 200 ℃ for 4 hours until the CO pressure no longer decreases, and the reaction is complete. Processed products.
Last Update：2023-12-08 10:00:33
9,10-Dioxoanthracene - Safety
Open Data Verified Data
- This product has low toxicity. Can cause allergic eczema, rhinitis, bronchial asthma. The production workshop should be well ventilated, the equipment should be sealed, and the operator should wear protective equipment.
- packed in an iron drum or in a hemp bag, lined with a plastic bag. The net weight of each barrel (bag) is 100 ~ 200kg. Keep dry, fire-proof and moisture-proof during storage. According to the general provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:42:53
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Raw Materials for 9,10-Dioxoanthracene
Downstream Products for 9,10-Dioxoanthracene