GB251968A - Manufacture of coerulein sulphonic acids - Google Patents

Manufacture of coerulein sulphonic acids

Info

Publication number
GB251968A
GB251968A GB10957/26A GB1095726A GB251968A GB 251968 A GB251968 A GB 251968A GB 10957/26 A GB10957/26 A GB 10957/26A GB 1095726 A GB1095726 A GB 1095726A GB 251968 A GB251968 A GB 251968A
Authority
GB
United Kingdom
Prior art keywords
soluble
cerulein
ges
sulphonic acids
water
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
GB10957/26A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB251968A publication Critical patent/GB251968A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B5/00—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
    • C09B5/02—Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings the heterocyclic ring being only condensed in peri position
    • C09B5/18—Coeroxene; Coerthiene; Coeramidene; Derivatives thereof

Abstract

251,968. I. G. Farbenindustrie Akt.- Ges., (Assignees of Akt.-Ges. f³r Anilin- Fabrikation). May 7, 1925, [Convention date]. Phthalein dyes.-Ceruleins are converted into soluble sulphonic acids by heating them with fuming sulphuric acid in presence of boric acid. In an example, the sulphonic acid obtained from cerulein itself is isolated by salting out; it is a black powder, readily soluble in water to a blueblack solution, and dyes fibres mordanted with a metal green. The cerulein obtained from oxyhydroquinonephthalein yields a sulphonic acid soluble in water to a dirty violet solution which gives blue to blue-black tints on metal mordants.
GB10957/26A 1925-05-07 1926-04-26 Manufacture of coerulein sulphonic acids Expired GB251968A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE251968X 1925-05-07

Publications (1)

Publication Number Publication Date
GB251968A true GB251968A (en) 1927-03-10

Family

ID=5945638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10957/26A Expired GB251968A (en) 1925-05-07 1926-04-26 Manufacture of coerulein sulphonic acids

Country Status (1)

Country Link
GB (1) GB251968A (en)

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