Process for the preparation of naphthalene-1,3,6-trisulphonic ac

Details Process for the preparation of naphthalene-1,3,6-trisulphonic ac Process for the preparation of naphthalene-1,3,6-trisulphonic ac

1978-03-15

1979-12-25

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14330

Patent

active

041805216

ABSTRACT:
A process has been invented for the preparation of naphthalene-1,3,6-trisulphonic acid by sulphonating naphthalene with sulphuric acid and oleum, characterized in that naphthalene and most of the oleum are simultaneously metered into sulphuric acid or oleum of low concentration, which has been initially introduced, at about 140.degree. to 240.degree. C., the temperature is kept at about 140.degree. to 240.degree. C. for some time, the remainder of the oleum is then added at about 140.degree. to 240.degree. C. and the mixture is then further stirred for some time.
Naphthalene-1,3,6-trisulphonic acid is a known important intermediate used, for example, in the preparation of T-acid, H-acid and chromotropic acid.

REFERENCES:
patent: 1311090 (1919-07-01), Pratt et al.

Affiliated with

Also associated with

Rating

Process for the preparation of naphthalene-1,3,6-trisulphonic ac does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of naphthalene-1,3,6-trisulphonic ac, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of naphthalene-1,3,6-trisulphonic ac will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2070195