US639041A - Black tetrazo dye. - Google Patents

Black tetrazo dye. Download PDF

Info

Publication number
US639041A
US639041A US69207598A US1898692075A US639041A US 639041 A US639041 A US 639041A US 69207598 A US69207598 A US 69207598A US 1898692075 A US1898692075 A US 1898692075A US 639041 A US639041 A US 639041A
Authority
US
United States
Prior art keywords
black
parts
acid
tetrazo
dye
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 - Lifetime
Application number
US69207598A
Inventor
Julius Herbabny
Christoph Hartmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US69207598A priority Critical patent/US639041A/en
Application granted granted Critical
Publication of US639041A publication Critical patent/US639041A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B31/00Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/30Other polyazo dyes

Definitions

  • the dyestuff thus obtained forms a black powder with a metallic luster insoluble in cold, but easily soluble in hot water with a violet shade, which turns reddish on adding soda, whereas on adding acids the dyestuff falls down as a violet precipitate. Its solution in concentrated sulfuric acid is pure blue. "It dyes unmordanted cotton from acid or neutral baths deep black.
  • meta-toluylenediamin may be replaced by the equivalent quantity of meta-phenylenediamin.
  • the black coloring-matter which is obtained by combining the tetraamido disazo-dyestuif derived from a metadiamin of the benzene series and para-nitro diazo benzene chlorid with amidonaphtholsulfo-acid G, which has the general formula N:Npara-diaminN:N amidonaphtholsulfo-acid G N:N para-dialnin N:N amidon aphtholsulfo-acid G,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

Nrrnn STATES PATENT OFFICE..-
JULIUS HERBABNY, OF OFFENBAOH-ON-TIIE-MAIN, AND CHRISTOPH IIARTMANN, OF FRANKFORT-ON-THE-MAIN, GERMANY.
BLACK TETRAZO DYE.
SPECIFICATION formingpart of Letters Patent No. 639,041, dated December 12, 1899.
Application filed September 28, 1898. Serial No. 692,075. ($peoimensi CH CH CH 1 2 A or meta phenylenediamin, respectively, with two molecules of para-nitro-diazobenzene, converting the thus-obtained tetra-amidodisazo body by sodium nitrite into a tetrazo compound, and, finally, combining the latter with two molecules of a suitable component.
The following example will illustrate the manner in which our invention may be carried out and brought into practical effect. The parts are, by weight:
Combine in a weakly soda-alkaline solution twelve and one-fifth (12.2) parts of toluylenediamin with twenty-seven and three-fifths (27.6) parts of paranitranilin diazolizedin the usual way with thirteen and four-fifths (13.8) parts of sodium nitrite. The precipitated dyestuff may either be isolated or directly reduced by sodium sulfid. In the latter case proceed as follows: mix sixty-three (63) parts of the dinitrodisazo dyestulf with one hundred and eighty (180) parts of sodium sulfid dismeta-diamin solved in eighty (80) parts of water and add, to quicken the reaction, two hundred and forty (240) parts of spirit and heat the whole to fifty to eighty degrees eentigrade to 80 C.) during four to six hours. The addition of spirit only serves to facilitate the reaction, and therefore is not absolutely necessary. After the reduction is finished distil off the spirit, dissolve the residue in diluted hydrochloric acid, filter, and precipitatewith alkalies. Then tetrazolize while cooling in hydrochloric-acid solution eighteen (18) parts of the obtained tetraamidodisazo compound with six and nine-tenths (6.9) parts of sodium nitrite and pour the whole into a solution of twenty-three and nine-tenths (23.9) parts of amidonaphtholsulfo-acid G, keeping alkaline by means of soda throughout the operation, and precipitate with common salt.
The dyestuff thus obtained forms a black powder with a metallic luster insoluble in cold, but easily soluble in hot water with a violet shade, which turns reddish on adding soda, whereas on adding acids the dyestuff falls down as a violet precipitate. Its solution in concentrated sulfuric acid is pure blue. "It dyes unmordanted cotton from acid or neutral baths deep black.
In the above example the meta-toluylenediamin may be replaced by the equivalent quantity of meta-phenylenediamin.
Now what we claim is As a new article of manufacture, the black coloring-matter which is obtained by combining the tetraamido disazo-dyestuif derived from a metadiamin of the benzene series and para-nitro diazo benzene chlorid with amidonaphtholsulfo-acid G, which has the general formula N:Npara-diaminN:N amidonaphtholsulfo-acid G N:N para-dialnin N:N amidon aphtholsulfo-acid G,
is a black powder with a metallic luster, in- I soluble in cold but easily soluble in hot water with a violet shade which turns reddish on addition of soda, forms a violet precipitate by the addition of acids to its aqueous solution, produces a pure-blue solution in concentrated sulfuric acid, and which dyes unmordanted cotton from alkaline or neutral baths a deep black which is very fast to washing, substantially as described.
In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.
JULIUS I-IERBABNY. OHRISTOPH HAR'IMANN.
Witnesses:
DEAN B. MASON, JEAN GRUND.
US69207598A 1898-09-28 1898-09-28 Black tetrazo dye. Expired - Lifetime US639041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US69207598A US639041A (en) 1898-09-28 1898-09-28 Black tetrazo dye.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69207598A US639041A (en) 1898-09-28 1898-09-28 Black tetrazo dye.

Publications (1)

Publication Number Publication Date
US639041A true US639041A (en) 1899-12-12

Family

ID=2707629

Family Applications (1)

Application Number Title Priority Date Filing Date
US69207598A Expired - Lifetime US639041A (en) 1898-09-28 1898-09-28 Black tetrazo dye.

Country Status (1)

Country Link
US (1) US639041A (en)

Similar Documents

Publication Publication Date Title
US639041A (en) Black tetrazo dye.
US333042A (en) Bkecht
US2212084A (en) Nucleak alkylated diaminostilbene
US515897A (en) Johann jakob brack
US536431A (en) Signors to the farbenfabriken
US499216A (en) Fabriken
US619518A (en) Yellow dye and process of making same
US515381A (en) Hann bammann
US1856796A (en) Azo-dyestuffs containing chromium and process of making same
US416055A (en) On - the - rhine
US493564A (en) Jakob schmid
US1854846A (en) Monoazo-dyestuffs and their manufacture
US583635A (en) Jakob sciimid and karl jedlicka
US417296A (en) Fabriken
US575904A (en) Christopher ris
US601859A (en) Christian rudolph
US417294A (en) Fabriken
US656620A (en) Blue-red substantive dye.
US417295A (en) Fabriken
US440281A (en) Christopii bis
US395080A (en) Christian
US568549A (en) On - the - main
US776885A (en) Green sulfur dye and process of making same.
US602855A (en) Karl krekeler and august blank
US602856A (en) Karl krekeler and adolf israel