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p-CHLORANIL |
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PRODUCT IDENTIFICATION |
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CAS NO. |
118-75-2 |
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EINECS NO. | 204-274-4 | |||||||||||||||||
FORMULA | C6Cl4(=O)2 | |||||||||||||||||
MOL WT. | 245.88 | |||||||||||||||||
H.S. CODE |
2914.70 |
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TOXICITY | Oral rat LD50: 4000 mg/kg | |||||||||||||||||
SYNONYMS | Chloranil; Khloranil; | |||||||||||||||||
2,3,5,6-tetrachloro-p-Benzoquinone; 2,3,5,6-tetrachloro-1,4-Benzoquinone; 2,3,5,6-Tetrachloro-2,5-cyclohexadiene-1,4-dione; Tetrachloroquinone; 2,3,5,6-tetrachloro-p-Benzoquinone; 2,3,5,6-Tetrachloro-p-benzoquinone; Chloranile; Quinone Tetrachloride; Tetrachloro-p-benzoquinone; Tetrachloro-p-quinone; Tetrachlorobenzoquinone; |
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SMILES |
phenol with potassium chloride and hydrochloric acid |
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CLASSIFICATION |
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PHYSICAL AND CHEMICAL PROPERTIES |
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PHYSICAL STATE | yellow to greenish crystalline powder | |||||||||||||||||
MELTING POINT | 291 C | |||||||||||||||||
BOILING POINT | Sublimes | |||||||||||||||||
SPECIFIC GRAVITY | 1.97 | |||||||||||||||||
SOLUBILITY IN WATER | Insoluble | |||||||||||||||||
pH | ||||||||||||||||||
VAPOR DENSITY | ||||||||||||||||||
AUTOIGNITION |
> 400 C | |||||||||||||||||
NFPA RATINGS |
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REFRACTIVE INDEX |
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FLASH POINT | ||||||||||||||||||
STABILITY | Stable under ordinary conditions | |||||||||||||||||
APPLICATIONS |
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Chloranil is used as a fungicide. It is used as an oxidizing agent in the organic synthesis especially for dye intermediates and vulcanization agent. Benzoquinone is used as an oxidizing agent in organic synthesis. Some substituted benzoquinones are stronger reagents e.g o-chloranil, p-chloranilexist (tetrachlorobenzoquinone), and DDQ (2,3-dicyano-5,6-dichloro-parabenzoquinone). They are used as reagents for the oxidation (including oxidative coupling and cyclization reaction) and dehydrogenation of hydroaromatic compounds. They are useful in the synthesis of aromatized or lactones formed steroids and modified natural products. Metal dioxide such as selenium dioxide and manganese dioxide are also oxidising agents which convert alcohols into ketones, aromatic methyl groups into aldehyde or carboxylic acids, double bonds into alcohols, aldehydes into carboxylic acids, steroidal ketones into secolactones. But several side reactions are expected due to the lack of selectivity. DDQ and substituted quinones provide regioselective effectiveness for the preparation of target intermediates. Phenylbis(trifluoroacetato-O)iodine and Tritylium tetrafluoroborate are also reagent for the dehydrogenation of hydroaromatic compounds.
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SALES SPECIFICATION | ||||||||||||||||||
APPEARANCE |
yellow to greenish crystalline powder | |||||||||||||||||
PURITY |
98.0% min |
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CHLORINE |
56.5% min |
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ASH |
0.5% max |
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TRANSPORTATION | ||||||||||||||||||
PACKING | 25kgs in bag | |||||||||||||||||
HAZARD CLASS | 6.1 | |||||||||||||||||
UN NO. | 2588 | |||||||||||||||||
REMARKS | ||||||||||||||||||
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