DinamicTM Hydroquinone
(CAS No.: 123-31-9)
Dinamic Hydroquinone
(CAS No.: 123-31-9)
1. Introduction:
Hydroquinone is an aromatic organic compound that is a type of phenol, and a derivative of benzene. It is available as a white crystalline solid.
Hydroquinone is produced industrially by two main routes. The most widely used route is similar to the cumene process in reaction mechanism and involves the dialkylation of benzene with propene to give 1,4-diisopropylbenzene. This compound reacts with air to afford the bis (hydroperoxide), which is structurally similar to cumene hydroperoxide and rearranges to give acetone and hydroquinone in acid.
A second route involves hydroxylation of phenol. The conversion uses hydrogen peroxide and affords a mixture of hydroquinone and catechol.
2. Chemical identity:
- Name: hydroquinone
Chemical name: benzene-1,4-diol - Synonym:
- hydroquinone
- idrochinone / quinol
- 1,4-dihydroxybenzene
- 1,4-hydroxy benzene
- CAS No.: 123-31-9
- EEC No.: 204-617-8
- Molecular formula: C₆H₆O₂
- Molecular weight: 110.11 g/mol
3. Physical & Chemical Properties:
- Appearance: Free flowing white crystals
- Odour: Nil to faint
Purity by GLC: Min. 99.5% - Water: Max. 0.5%
- Melting Point: 170.0-174.0 ℃
- PH: 3.50-4.50
- APHA Colour: 30 Max.
- Ashes: 0.05% Max.
- Transmittance at 415nm: 95.0-100.0%
- Solubility at 21 ℃ in: Soluble in Acetone (24), Ethyl acetate (22), Ethyl alcohol (29), Methanol (32), (g/100g of solvent)
Water (7), THF (40)
Insoluble in Benzene
Uses & Applications:
- Photographic developer: X Ray, Black and White, Graphic, Color reversal films, Arts applications
- Rubber: Stabilizer, Antioxidant, Antiozonant
- Polymerization Inhibitor: Acrylic acid and esters, Acrylonitrile, Methyl Methacrylate, Methacrylic acid, Vinyl Acetate, High performance polymers
- Dyes and Pigments: Azoic coupling component
- Agrochemicals: Intermediates for pesticides
- Food: Antioxidant
- Pharmaceuticals: Intermediates for Pharma applications
- Printing inks
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