GB2001642A - Preparation of aqueous solutions of alkali metal salts of Armstrong Acid - Google Patents

Preparation of aqueous solutions of alkali metal salts of Armstrong Acid

Info

Publication number
GB2001642A
GB2001642A GB7830889A GB7830889A GB2001642A GB 2001642 A GB2001642 A GB 2001642A GB 7830889 A GB7830889 A GB 7830889A GB 7830889 A GB7830889 A GB 7830889A GB 2001642 A GB2001642 A GB 2001642A
Authority
GB
United Kingdom
Prior art keywords
acid
alkali metal
preparation
armstrong
metal salts
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.)
Granted
Application number
GB7830889A
Other versions
GB2001642B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 by American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB2001642A publication Critical patent/GB2001642A/en
Application granted granted Critical
Publication of GB2001642B publication Critical patent/GB2001642B/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The solutions of 2-hydroxy-1- naphthalenesulfonic acid (Armstrong Acid) are obtained by simultaneously and continuously mixing separate streams of a solution of 2- hydroxynaphthalene in a water-immiscible organic solvent and of chlorosulfonic acid under controlled mixing ratios at from about 0-50 DEG C for a period of about 1 to 120 minutes, whereafter the reaction mixture containing Armstrong Acid is treated with aqueous alkali to form the desired alkali metal salt solution.
GB7830889A 1977-07-29 1978-07-24 Preparation of aqueous solutions of alkali metal salts of armstrong acid Expired GB2001642B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82048577A 1977-07-29 1977-07-29

Publications (2)

Publication Number Publication Date
GB2001642A true GB2001642A (en) 1979-02-07
GB2001642B GB2001642B (en) 1982-02-03

Family

ID=25230911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830889A Expired GB2001642B (en) 1977-07-29 1978-07-24 Preparation of aqueous solutions of alkali metal salts of armstrong acid

Country Status (4)

Country Link
JP (1) JPS5427552A (en)
DE (1) DE2831956A1 (en)
FR (1) FR2398722A1 (en)
GB (1) GB2001642B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109810028A (en) * 2019-04-03 2019-05-28 天津市科德化工有限公司 Apparatus system for tobias acid waste liquid purification tobias acid

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2831992A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831966A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831965A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
EP0031299B1 (en) * 1979-12-20 1985-02-13 Ciba-Geigy Ag Process for the preparation of 2-amino-1-naphthalene sulfonic acid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1182010A (en) * 1956-09-05 1959-06-22 Gen Aniline & Film Corp Process for preparing beta-naphthol-sulfonic acid
DD103390A1 (en) * 1973-01-12 1974-01-20
DE2831992A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831966A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID
DE2831994A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR PRODUCTION OF TOBIAC ACID
DE2831965A1 (en) * 1977-07-29 1979-02-08 American Cyanamid Co PROCESS FOR THE PREPARATION OF 2-AMINO- 1-NAPHTHALINE SULFONIC ACID

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109810028A (en) * 2019-04-03 2019-05-28 天津市科德化工有限公司 Apparatus system for tobias acid waste liquid purification tobias acid

Also Published As

Publication number Publication date
JPS5427552A (en) 1979-03-01
GB2001642B (en) 1982-02-03
DE2831956A1 (en) 1979-02-15
FR2398722A1 (en) 1979-02-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee