Alpha,Alpha'-Dichloro-p-xylene
Alpha,Alpha'-Dichloro-p-xylene
CAS: 623-25-6
Molecular Formula: C8H8Cl2
Alpha,Alpha'-Dichloro-p-xylene - Names and Identifiers
Alpha,Alpha'-Dichloro-p-xylene - Physico-chemical Properties
| Molecular Formula | C8H8Cl2 |
| Molar Mass | 175.06 |
| Density | 1,417 g/cm3 |
| Melting Point | 98-101°C(lit.) |
| Boling Point | 254°C(lit.) |
| Flash Point | 254°C |
| Water Solubility | hydrolysis |
| Solubility | Decomposition in water, soluble in acetone and dichloromethane, methanol solubility: 50 mg/ml |
| Vapor Presure | 0.541Pa at 25℃ |
| Appearance | Crystalline Solid |
| Color | White to light yellow |
| BRN | 774706 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Sensitive | Sensitive to heat and humidity |
| Refractive Index | 1.5544 (estimate) |
| MDL | MFCD00000920 |
| Physical and Chemical Properties | Melting point 98-102°C boiling point 254°C water-soluble hydrogen |
| Use | Used as an intermediate in organic synthesis, for the manufacture of terephthalic acid methanol and other dyes |
Alpha,Alpha'-Dichloro-p-xylene - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36/38 - Irritating to eyes and skin. R36/37/38 - Irritating to eyes, respiratory system and skin. R26 - Very Toxic by inhalation R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R34 - Causes burns R36 - Irritating to the eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S28A - S27 - Take off immediately all contaminated clothing. |
| UN IDs | 3261 |
| WGK Germany | 3 |
| RTECS | ZE4100000 |
| FLUKA BRAND F CODES | 9-19-21 |
| TSCA | Yes |
| HS Code | 29036990 |
| Hazard Note | Irritant |
| Hazard Class | 6.1 |
| Packing Group | II |
Alpha,Alpha'-Dichloro-p-xylene - Introduction
α,α′-Dichloro-p-xylene undergoes phase transfer catalysed polycondensation with t-butylcyanoacetate to form carbon-carbon chain polymer
Last Update：2022-10-16 17:27:19
Alpha,Alpha'-Dichloro-p-xylene - Reference Information
| LogP | 3 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | as an intermediate in organic synthesis, it is used in the synthesis of p-phenylenediamine. It is used for the synthesis of products such as p-phenylenediamine. used as an intermediate in organic synthesis for the manufacture of terephthalic methanol and other dyes organic synthesis intermediates for the manufacture of terephthalic methanol, terephthalic ether, terephthalic aldehyde and other dyes, pharmaceutical Intermediates, etc. |
| production method | p-xylene is obtained by light chlorination. |
Last Update：2024-04-09 21:48:26
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