FIELD: chemistry.
SUBSTANCE: present invention relates to a method for synthesis of 1,3,5-trihydroxybenzene (phloroglucinol) used as an initial component for synthesis of epoxide and thermosetting resins for making protective coatings, as a semi-finished product in making dyes etc. The method involves hydrolysis of a 1,3,5-triaminobenzene salt with an inorganic acid while heating in an acidic medium. The hydrolysis process is carried out in suspension with mass ratio salt: water equal to 1:1.75 in the presence of an ammonium salt. As a rule, the 1,3,5-triaminobenzene salt with an inorganic acid used is a dihydrate of 1,3,5-triaminobenzene disulphate or a dehydrate of 1,3,5-triaminobenzene diphosphate.
EFFECT: method increases efficiency of the process and enables to obtain a highly pure product.
2 cl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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