FR550850A - New process for preparing acid h - Google Patents

New process for preparing acid h

Info

Publication number
FR550850A
FR550850A FR550850DA FR550850A FR 550850 A FR550850 A FR 550850A FR 550850D A FR550850D A FR 550850DA FR 550850 A FR550850 A FR 550850A
Authority
FR
France
Prior art keywords
new process
preparing acid
preparing
acid
new
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Gualtiero Poma
Giuseppe Pellegrini
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR550850A publication Critical patent/FR550850A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/01—Sulfonic acids
    • C07C309/28—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C309/33—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems
    • C07C309/34—Sulfonic acids having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton of six-membered aromatic rings being part of condensed ring systems formed by two rings
    • C07C309/35—Naphthalene sulfonic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR550850D 1921-12-12 1922-05-01 New process for preparing acid h Expired FR550850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT550850X 1921-12-12

Publications (1)

Publication Number Publication Date
FR550850A true FR550850A (en) 1923-03-21

Family

ID=11287670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR550850D Expired FR550850A (en) 1921-12-12 1922-05-01 New process for preparing acid h

Country Status (2)

Country Link
CH (1) CH102539A (en)
FR (1) FR550850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386520A1 (en) * 1977-04-09 1978-11-03 Bayer Ag PROCESS FOR PREPARING 1-AMINO-8-NAPHTOL-3,6-DISULPHONIC ACID ("H" ACID)
EP0002691A1 (en) * 1977-12-22 1979-07-11 Bayer Ag Process for the preparation of 1-amino-naphthaline-3,6,8-trisulfonic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2386520A1 (en) * 1977-04-09 1978-11-03 Bayer Ag PROCESS FOR PREPARING 1-AMINO-8-NAPHTOL-3,6-DISULPHONIC ACID ("H" ACID)
EP0002691A1 (en) * 1977-12-22 1979-07-11 Bayer Ag Process for the preparation of 1-amino-naphthaline-3,6,8-trisulfonic acid

Also Published As

Publication number Publication date
CH102539A (en) 1923-12-17

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