3,4-Dimethylphenol CAS 95-65-8
4,4′-Methylene bis(2-chloroaniline) CAS 101-14-4
13 10 月, 2020Dibutyltin dichloride CAS 683-18-1
13 10 月, 2020
3,4-Dimethylphenol Typical Properties
| Product name | 3 4-Dimethylphenol |
| Synonyms |
3,4-Xylenol (OH=1);1,2-Dimethyl-4-hydroxybenzene;1,3,4-Xylenol;3,4-dimethyl-pheno;4,5-Dimethylphenol;3 4-XYLENOL 98+%;3,4-DIMETHYLPHENOL PESTANAL;3,4-Dimethylphenol, 98+%
|
| Cas | 95-65-8 |
| MF | C8H10O |
| MW | 122.16 |
| EINECS | 202-439-5 |
| Product Categories | Industrial/Fine Chemicals;Aromatic Phenols;Aromatics |
| Melting point | 65-68 °C |
| Boiling point | 227 °C(lit.) |
| density | 1,138 g/cm3 |
| refractive index | 1.5442 |
| FEMA | 3596 | 3,4-XYLENOL |
| Fp | 61 °C |
| storage temp. | 2-8°C |
| form | Crystalline Powder |
| pka | pK1:10.32 (25°C) |
3,4-Dimethylphenol Usage
1、Because industrial xylenol is rich in 3,4-xylenol and 3,5-xylenol, it can be used as a source of 3,4-xylenol and 3,5-xylenol, and as a disinfectant, Raw materials for plasticizers and pesticides. 3,4-xylenol is used to prepare imine resins (engineering plastics), disinfectants, pesticides, dyes and fragrances. 3,5-xylenol is used as a disinfectant, insecticide, perfume, dye, antioxidant, raw material for synthetic resin, etc.
2、Used to make modified polyimides, pesticides, dyes, etc.
3,4-Dimethylphenol Production method
The crude phenol obtained from the washing oil fraction of coal tar through sodium hydroxide saponification and sulfuric acid acidification contains phenol, cresol and xylenol. The mixed xylenol can be obtained from the separation of crude phenol, 3,5-xylenol is removed by rectification, the remainder is rectified, and the 225-229℃ distillate is collected, cooled and crystallized, and centrifuged to obtain 3,4-xylenol . In addition, using o-xylene as raw material, the product can also be obtained through sulfonation, alkali fusion, acid precipitation, and distillation.
3,4-Dimethylphenol Supply Ability
1000 Kilogram/Kilograms per Month
3,4-Dimethylphenol Storage
1G 10G 100G/BAG
3,4-Dimethylphenol Properties:
Industrial xylenol is a mixture of a variety of xylenol isomers, with a melting point of 64.5-66.5°C and a boiling point of 211-225°C. It is a yellowish to brownish-red oily liquid. Slightly soluble in water, easily soluble in alcohol, benzene, etc.
3,4-Dimethylphenol preparation method:
The crude phenol obtained from the washing oil fraction of coal tar through sodium hydroxide saponification and sulfuric acid acidification contains phenol, cresol and xylenol. From crude phenol separation, mixed xylenol can be obtained, 3,5-xylenol is removed by rectification, the remainder is rectified, 225-229℃ distillate is collected, cooled and crystallized, and centrifuged to obtain 3,4-xylenol .
In addition, using o-xylene as raw material, the product can also be obtained through sulfonation, alkali fusion, acid precipitation, and distillation.