Meta Para Mixed Cresol ( Synthetic Origin ) M-Cresol Cas 108-39-4

Appearance and shape: transparent to slightly amber liquid
Density: 1.034
Melting point: 8-10 ° C
Boiling point: 203 ° C
Refractive index: 1.539-1.541
Flash point: 86 ° C
Water solubility: 20 g/L (20 ° C)
Storage conditions: 2-8 ° C
Color: Colorless, yellowish, brownish-yellow, or pinkish liquid
Colorless to yellow liquid [Note: A solid below 54 degrees F]

Introduction About M-Cresol

Process for the preparation of m-cresol (108-39-4):
The synthesis method is mainly used in foreign countries, and it can also be separated from coking; oil shale retorting and co-cresol of municipal gas. The p-cresol can be separated by azeotropic method, urea method, dissociated benzene method, sulfonation hydrolysis method, phenol crystallization method, alkylation method and the like.
1. Toluene and propylene form isopropyl toluene under the action of aluminum trichloride, and then oxidized by air to form isopropyl toluene hydroperoxide, which is acid-decomposed into acetone and phenol; After the mixed cresol and isobutylene are reacted, the characteristics of the difference in boiling point between the reaction products and the cresol alkylate are subjected to rectification to separate, and then the tert-butyl group is removed to obtain pure m-cresol.
2. O-xylene is oxidized by air to obtain o-methylbenzoic acid under the catalysis of cobalt naphthenate, and then oxidized and decarboxylated o-methylbenzoic acid with copper oxide and magnesium oxide as catalyst to obtain m-cresol. Limited amount:
FEMA (mg/kg): baked goods 1.0; meat products, soup products, snack foods, nuts products, instant coffee, instant tea, seasonings, gravy, all 0.5.

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