GB2012269A - Process for the production of the magnesium salt of nitro-Armstrong's acid - Google Patents

Process for the production of the magnesium salt of nitro-Armstrong's acid

Info

Publication number
GB2012269A
GB2012269A GB7850082A GB7850082A GB2012269A GB 2012269 A GB2012269 A GB 2012269A GB 7850082 A GB7850082 A GB 7850082A GB 7850082 A GB7850082 A GB 7850082A GB 2012269 A GB2012269 A GB 2012269A
Authority
GB
United Kingdom
Prior art keywords
acid
armstrong
magnesium salt
nitro
production
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
GB7850082A
Other versions
GB2012269B (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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of GB2012269A publication Critical patent/GB2012269A/en
Application granted granted Critical
Publication of GB2012269B publication Critical patent/GB2012269B/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids

Landscapes

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

Abstract

A process for the crystallisation of the dimagnesium salt of 3- nitronaphthalene-1,5-disulfonic acid, consists in crystallising 3- nitronaphthalene-1,5-disulfonic acid from the acid reaction mixture of the nitration of 1,5-naphthalene-disulfonic acid (Armstrong's acid) with an aqueous magnesium salt solution at a temperature between 90 DEG and 120 DEG C.
GB7850082A 1977-12-30 1978-12-28 Process for the production of the magnesium salt of nitro armstong's acid Expired GB2012269B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1629977A CH632739A5 (en) 1977-12-30 1977-12-30 METHOD FOR PRODUCING NITRO-Armstrong acid-MAGNESIUM SALT.

Publications (2)

Publication Number Publication Date
GB2012269A true GB2012269A (en) 1979-07-25
GB2012269B GB2012269B (en) 1982-06-09

Family

ID=4416109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7850082A Expired GB2012269B (en) 1977-12-30 1978-12-28 Process for the production of the magnesium salt of nitro armstong's acid

Country Status (6)

Country Link
JP (1) JPS5834468B2 (en)
BE (1) BE873182A (en)
CH (1) CH632739A5 (en)
DE (1) DE2856567C3 (en)
FR (1) FR2413367A1 (en)
GB (1) GB2012269B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5587760A (en) * 1978-12-22 1980-07-02 Ciba Geigy Ag Manufacture of nitrooarmstrong*s acid
DE2903849A1 (en) * 1979-02-01 1980-08-14 Bayer Ag PROCESS FOR THE PRODUCTION OF MAGNESIUM SALT FROM 2-NITRONAPHTHALIN-4,8-DISULPHONIC ACID (NITRO-ARMSTRONG-ACID)
US4348334A (en) * 1979-02-02 1982-09-07 Ciba-Geigy Ag Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1756537A (en) * 1926-02-13 1930-04-29 Nat Aniline & Chem Co Inc Separation of mononitronaphthalene disulphonic acids

Also Published As

Publication number Publication date
BE873182A (en) 1979-06-29
CH632739A5 (en) 1982-10-29
FR2413367B1 (en) 1983-11-10
JPS5834468B2 (en) 1983-07-27
GB2012269B (en) 1982-06-09
DE2856567A1 (en) 1979-07-05
FR2413367A1 (en) 1979-07-27
DE2856567C3 (en) 1982-01-28
DE2856567B2 (en) 1980-11-20
JPS5495551A (en) 1979-07-28

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee