RO94763B1 - Procedeu de preparare a unui pigment monoazoic sare de calciu - Google Patents

Procedeu de preparare a unui pigment monoazoic sare de calciu

Info

Publication number
RO94763B1
RO94763B1 RO122742A RO12274286A RO94763B1 RO 94763 B1 RO94763 B1 RO 94763B1 RO 122742 A RO122742 A RO 122742A RO 12274286 A RO12274286 A RO 12274286A RO 94763 B1 RO94763 B1 RO 94763B1
Authority
RO
Romania
Prior art keywords
calcium salt
preparing
salt type
coupling
pigment
Prior art date
Application number
RO122742A
Other languages
English (en)
Inventor
Elena Cornelia Frunza
Petre Ardeleanu
Dorin Gageonea
Cornel Popescu
Nicolae Popovici
Werter Codlea Schullerus
Original Assignee
Institutul De Cercetari Chimice-Centrul De Cercetari Pentru Coloranti
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 Institutul De Cercetari Chimice-Centrul De Cercetari Pentru Coloranti filed Critical Institutul De Cercetari Chimice-Centrul De Cercetari Pentru Coloranti
Priority to RO122742A priority Critical patent/RO94763B1/ro
Publication of RO94763B1 publication Critical patent/RO94763B1/ro

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Inventia se refera la un procedeu de preparare a unui pigment monoazoic sare de calciu prin diazotarea acidului Tobias, cuplare cu beta - naftol si trecerea în sare de calciu prin tratare cu solutie de CaCl<sub>2</sub>, în care reactiile de cuplare si de trecere în sare de calciu se efectueaza în aceeasi masa de reactie, fara separarea colorantului obtinut în urma cuplarii, în prezenta de nonilfenol polietoxilat.
RO122742A 1986-03-26 1986-03-26 Procedeu de preparare a unui pigment monoazoic sare de calciu RO94763B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO122742A RO94763B1 (ro) 1986-03-26 1986-03-26 Procedeu de preparare a unui pigment monoazoic sare de calciu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO122742A RO94763B1 (ro) 1986-03-26 1986-03-26 Procedeu de preparare a unui pigment monoazoic sare de calciu

Publications (1)

Publication Number Publication Date
RO94763B1 true RO94763B1 (ro) 1988-11-12

Family

ID=40904347

Family Applications (1)

Application Number Title Priority Date Filing Date
RO122742A RO94763B1 (ro) 1986-03-26 1986-03-26 Procedeu de preparare a unui pigment monoazoic sare de calciu

Country Status (1)

Country Link
RO (1) RO94763B1 (ro)

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